Optical Art Illusions

Optical Art Illusion

Op Art, short for Optical Art, is a style of art that emerged in the 1960s and is characterized by the use of optical illusions, geometric shapes, and bright colors to create the impression of movement, depth, and visual vibration.

If you are interested in learning more about Optical Art Illusions and seeing some more examples, scroll down to read more about it.

Optical Art Illusion
Victor Vasarely “Zebra”


Table of Contents

What are Optical Art Illusions?

Optical Art, short for Optical Art, is a style of art that emerged in the 1960s and is characterized by the use of optical illusions, geometric shapes, and bright colors to create the impression of movement, depth, and visual vibration.

Optical Art often employs simple geometric shapes such as squares, circles, and lines, arranged in patterns or sequences that create a sense of movement or distortion. The art form relies on the viewer’s perception and the way that the human brain processes visual information, often resulting in images that appear to be pulsing, vibrating, or even moving.

Optical Art is heavily influenced by the scientific and technological developments of the time, such as advances in color television, photography, and printing techniques, which allowed artists to experiment with new forms of optical illusions and visual effects.

The style was popularized by artists such as Bridget Riley, Victor Vasarely, and Yaacov Agam, among others, and has had a significant influence on contemporary art, design, and popular culture. Today, Op Art continues to be a popular style among artists who are interested in exploring the intersection of art and perception.

How do Optical Art Illusions Work?

Optical Art works by exploiting the way the human brain processes visual information. The style relies on optical illusions, such as the Moiré effect, in which the viewer perceives patterns or lines that are not actually present, or the illusion of movement, in which a static image appears to be in motion.

Optical Art often employs simple geometric shapes such as squares, circles, or lines, arranged in patterns or sequences that create a sense of movement or distortion. These patterns and sequences are designed to activate the viewer’s visual cortex, which is responsible for processing visual information and making sense of what we see.

When we view an Optical Art piece, our brain tries to interpret the patterns and shapes it is seeing, leading to various perceptual effects such as the impression of movement, depth, and visual vibration. These effects are created by the contrast between the different colors or shades used in the artwork, as well as the way the shapes and patterns are arranged.

Op Art works because our visual system is constantly trying to make sense of the information it receives, and the style exploits the way our brains process visual information to create images that are visually engaging and dynamic.

Some Examples of Optical Art Illusions

Optical Art is a style of art that emerged in the 1960s, characterized by the use of geometric shapes, bright colors, and optical illusions to create the impression of movement and depth. Here are some examples of Op Art:

Bridget Riley’s “Movement in Squares”: This painting, created in 1961, features a series of black and white squares arranged in a grid that creates the impression of movement and depth.

Optical Art Illusion
Bridget Riley’s “Movement in Squares”

Victor Vasarely’s “Zebra”: This painting, created in 1937, features a series of black and white stripes arranged in a way that creates a sense of vibration and optical illusion.

Optical Art Illusion
Victor Vasarely “Zebra”

Jesus Rafael Soto’s “Penetrable”: This sculpture, created in 1967, features a series of hanging wires that create an immersive, three-dimensional environment in which viewers can move and interact.

Jesus Rafael Soto’s “Penetrable”

Yaacov Agam’s “Double Metamorphosis II”: This sculpture, created in 1964, features a series of rotating panels that create a sense of movement and change depending on the viewer’s perspective.

Optical Art
Yaacov Agam’s “Double Metamorphosis III”:

These are just a few examples of Op Art, which continues to be a popular style among artists and designers who are interested in exploring the intersection of art and perception.

Discovery of Optical Art Illusions

The Optical Art movement emerged in the mid-1960s, and it is difficult to attribute its creation to a single artist or individual. The style was influenced by a variety of artistic and scientific movements of the time, including Abstract Expressionism, Kinetic Art, and the study of color and perception.

Some of the earliest and most influential Op Art artists include Victor Vasarely, Bridget Riley, and Jesús Rafael Soto. Vasarely, who is often credited with coining the term “Op Art,” began creating geometric abstract art in the 1930s and is considered one of the pioneers of the style. Riley, who emerged in the 1960s, is known for her black-and-white paintings that create optical illusions of movement and depth. Soto, who was also active in the 1960s, created sculptures and installations that engage the viewer in an immersive, three-dimensional environment.

Overall, Optical Art was a movement that emerged out of a broader cultural and artistic context, and many artists contributed to its development and popularity in the 1960s and beyond.


References and Resources

Check out our complete list of illusions.

Super Cool Illusory Motion

Illusory Motion

This Super Cool Illusory Motion example is not a GIF. It is a completely static image.

Illusory motion is a perceptual phenomenon in which a stationary image appears to be moving. It occurs when visual cues in the image trick the brain into perceiving motion, even though there is no actual movement taking place. If you are interested in learning more, scroll down to read more about it.

Also check out these cool examples of illusory motion: Amazing Colorful Illusory Motion and Black and White Illusory Motion and Fun Circles Illusory Motion and Illusory Motion

Illusory Motion


Table of Contents

What is Illusory Motion?

Illusory motion is a type of optical illusion in which stationary images or patterns appear to be moving. This can occur in a variety of ways, such as through the use of patterns with alternating colors or shapes that create the illusion of motion, or by presenting a series of static images in rapid succession to create the perception of motion.

One well-known example of an illusory motion effect is the “rotating snakes” illusion, in which a series of static black-and-white shapes appear to be rotating in a continuous, fluid motion. This illusion is created by using patterns with specific shapes and contrasts that stimulate the brain’s motion-sensitive neurons and create the perception of movement, even though the image itself is not actually moving.

Other examples of illusory motion include the “scintillating grid” illusion, in which the intersections of a grid pattern appear to be flashing or moving, and the “phi phenomenon,” in which a series of static lights flashing in sequence create the illusion of motion.

Illusory motion can be a fascinating and captivating experience, and it has been the subject of much research in the fields of visual perception and neuroscience. Scientists continue to study the underlying mechanisms of illusory motion and other visual illusions in order to better understand how the brain processes visual information and creates our subjective experience of the world around us.

How does Illusory Motion Work?

Illusory motion is caused by the brain’s interpretation of visual information that is presented in a particular way. Different illusory motion effects may be created by different types of visual stimuli, but they all involve the brain perceiving motion where there is none.

One explanation for illusory motion is that it is caused by the brain’s motion-sensitive neurons responding to certain visual patterns or stimuli in a way that creates the perception of motion. These neurons, located in an area of the brain called the visual cortex, are responsible for processing information about motion and spatial relationships in the visual field. When presented with certain visual patterns or stimuli, these neurons can become activated in a way that creates the illusion of motion.

Another explanation is that illusory motion is a result of the brain’s tendency to fill in missing information in order to create a complete and coherent visual scene. When presented with incomplete or ambiguous visual information, the brain may “fill in the gaps” in a way that creates the perception of motion or movement.

In either case, illusory motion is a result of the brain’s complex processing of visual information, and it is influenced by a variety of factors, including the properties of the visual stimuli, the context in which they are presented, and individual differences in perception and interpretation.

Some Similar Illusions

There are many different illusory motion illusions, each created by specific patterns or stimuli that trick the brain into perceiving motion where there is none. Here are some examples of illusory motion illusions:

  1. Rotating snakes illusion: This illusion consists of a pattern of overlapping circles and curves that create the perception of continuous motion, as if the image is rotating in a circular motion.
  2. Motion aftereffect illusion: This illusion occurs when a person views a moving stimulus for a prolonged period of time, and then looks at a stationary object. The stationary object will appear to be moving in the opposite direction of the original stimulus.
  3. Autokinetic effect: This illusion occurs when a stationary point of light is viewed in a dark room for a prolonged period of time. The light will appear to move or “drift” even though it is stationary.
  4. Peripheral drift illusion: This illusion consists of a pattern of intersecting circles and lines that create the perception of motion at the periphery of the visual field.
  5. Barber pole illusion: This illusion consists of a rotating spiral pattern of alternating red and white stripes, which create the perception of upward motion even though the pattern itself is rotating.
  6. Wagon wheel illusion: This illusion occurs when a wheel appears to be rotating in the opposite direction of its true motion, due to the interaction between the frequency of the spokes and the frame rate of the video camera.

These are just a few examples of the many illusory motion effects that have been discovered and studied by researchers in the field of visual perception. Each of these illusions demonstrates the brain’s remarkable ability to create the perception of motion and movement, even in the absence of actual movement.

Discovery of the Illusory Motion

Illusory motion has been known and studied by scientists and artists for centuries, but it is difficult to attribute its discovery or popularization to any single individual or group. The use of visual patterns and stimuli to create the illusion of motion has been explored in various forms of art, such as Op Art and Kinetic Art, and in scientific research on visual perception and neuroscience.

One of the earliest recorded examples of an illusory motion effect is the Zoetrope, a pre-cinematic device invented in the early 19th century that uses a sequence of static images to create the illusion of motion. Other early examples of illusory motion effects can be found in ancient Greek and Roman art, such as the use of mosaic patterns to create the impression of motion and depth.

In more recent times, scientists and artists have continued to explore and experiment with the use of visual illusions to create the perception of motion. Artists such as Bridget Riley and Victor Vasarely are known for their use of geometric patterns and shapes to create illusory motion effects, while scientists have used illusory motion as a tool for studying the brain’s processing of visual information.

Overall, illusory motion is a phenomenon that has been studied and appreciated by many different people throughout history, and it continues to inspire new forms of artistic and scientific exploration.


References and Resources Illusory Motion

In addition to this supercool Illusory Motion example, check out our complete list of illusions.

Pulsating Flower Illusions

Pulsating Flower Illusions

Check out these Pulsating Flower Illusions that create a sense of movement or pulsation in the visual field, even when there is no actual motion occurring. These types illusions can be caused by a variety of visual stimuli, including patterns, colors, and shapes.

If you are interested in learning more about Pulsating Flower Illusions, scroll down to read more about them. Also, check out these cool Pulsating Illusions.

Pulsating Flower Illusions
Pulsating Flower Illusions
Pulsating Flower Illusions


Table of Contents

What are Pulsating Flower Illusions?

Pulsating Flower Illusions that create a sense of movement or pulsation in the visual field, even when there is no actual motion occurring. These types illusions can be caused by a variety of visual stimuli, including patterns, colors, and shapes. They are usually caused by the way our brains process visual information.

Our brains constantly receive and process sensory information from our environment, including visual information from our eyes. When we look at an object or scene, our brain uses a variety of processing mechanisms to interpret the visual information and create a perception of what we are seeing.

In the case of pulsating flower illusions, the visual information is processed in a way that creates a rhythmic, pulsing effect. This can happen for a variety of reasons, including the way that certain visual elements in the illusion interact with each other, or the way that our brain processes and integrates different visual inputs.

For example, one common type of pulsating illusion is the “grid illusion,” where a grid of intersecting lines appears to pulsate and move. This effect is thought to be caused by the way that the intersections between the lines create contrasting areas of light and dark, which our brain interprets as moving or pulsing.

Overall, these illusions are a fascinating example of how our brains process visual information and can be used to study the mechanisms of perception and cognition.

How do Pulsating Flower Illusions Work?

Pulsating flower illusions work by creating a sense of movement or pulsation in the visual field, even when there is no actual motion occurring. These illusions can be caused by a variety of visual stimuli, including patterns, colors, and shapes.

One common example of a pulsating illusion is the “Neon Color Spreading” illusion, where a brightly colored object appears to pulsate and spread color to its surroundings. This illusion is created by the way that our brain processes visual information about color and brightness. When two contrasting colors, such as red and green, are placed next to each other, they create a visual contrast that our brain interprets as pulsing or moving.

Another example is the “Grid Illusion,” where a grid of intersecting lines appears to pulsate and move. This illusion is caused by the way that the intersections between the lines create contrasting areas of light and dark, which our brain interprets as moving or pulsing.

In general, pulsating flower illusions are thought to be caused by the way that our brain processes and integrates visual information. By studying these illusions, scientists can gain insights into the mechanisms of perception and cognition, and how our brains create our sense of reality.

Some Similar Illusions

There are many different types of illusions that are similar to pulsating flower illusions in that they create a sense of movement or distortion in the visual field. Here are a few examples:

  1. Motion aftereffect illusion: This illusion occurs when you stare at a moving image for a period of time and then look at a stationary object, which appears to move in the opposite direction. This effect is caused by the way that our brain adapts to the motion of the original image and then overcompensates when we look at the stationary object.
  2. Pinna-Brelstaff illusion: This illusion occurs when you look at a spiraling image that is also rotating. The image appears to move in the opposite direction of the rotation, creating a sense of disorientation and distortion.
  3. Ames room illusion: In this illusion, a room is constructed with one corner closer to the viewer than the other, creating the illusion of a trapezoidal shape. When people enter the room, they appear to shrink or grow in size as they move from one corner to the other. This effect is caused by the way that our brain processes visual depth and perspective.
  4. Ponzo illusion: This illusion occurs when two lines of the same length are placed in a converging pattern with two diagonal lines. The line that is closer to the converging point appears longer, even though it is actually the same length as the other line. This effect is caused by the way that our brain interprets visual cues such as perspective and depth.

Overall, illusions are a fascinating way to explore how our brain processes visual information and constructs our perception of reality.

Discovery of Pulsating Flower Illusions

Pulsating flower illusions, like many types of visual illusions, have been studied and documented by a number of scientists and researchers over the years. It’s difficult to attribute the discovery or popularization of pulsating illusions to any one person or group.

One of the earliest documented examples of a pulsating illusion is the “phi phenomenon,” which was first described by the psychologist Max Wertheimer in 1912. The phi phenomenon occurs when two or more visual stimuli are presented in rapid succession, creating the illusion of movement or pulsation.

Since then, many other researchers have studied pulsating illusions and related phenomena, including the ways that our brain processes visual information and creates the perception of movement and motion. Some notable contributors to this field include the psychologists Richard Gregory, Edward Adelson, and Akiyoshi Kitaoka, among others.

Today, pulsating flower illusions continue to be a fascinating area of study for researchers in fields like psychology, neuroscience, and cognitive science, and new discoveries are constantly being made about the ways that our brains interpret and process visual information.


References and Resources – Pulsating Flower Illusions

In addition to Pulsating Flower Illusions, please check out our complete list of illusions.

Pulsating Illusions

Pulsating Illusions

Check out these Pulsating Illusions that create a sense of movement or pulsation in the visual field, even when there is no actual motion occurring. These types illusions can be caused by a variety of visual stimuli, including patterns, colors, and shapes.

If you are interested in learning more about Pulsating Illusions, scroll down to read more about them. Also, check out these cool Pulsating Flower Illusions.

Pulsating Illusions
Pulsating Illusions


Table of Contents

What are Pulsating Illusions?

Pulsating Illusions that create a sense of movement or pulsation in the visual field, even when there is no actual motion occurring. These types illusions can be caused by a variety of visual stimuli, including patterns, colors, and shapes. They are usually caused by the way our brains process visual information.

Our brains constantly receive and process sensory information from our environment, including visual information from our eyes. When we look at an object or scene, our brain uses a variety of processing mechanisms to interpret the visual information and create a perception of what we are seeing.

In the case of pulsating illusions, the visual information is processed in a way that creates a rhythmic, pulsing effect. This can happen for a variety of reasons, including the way that certain visual elements in the illusion interact with each other, or the way that our brain processes and integrates different visual inputs.

For example, one common type of pulsating illusion is the “grid illusion,” where a grid of intersecting lines appears to pulsate and move. This effect is thought to be caused by the way that the intersections between the lines create contrasting areas of light and dark, which our brain interprets as moving or pulsing.

Overall, these illusions are a fascinating example of how our brains process visual information and can be used to study the mechanisms of perception and cognition.

How do Pulsating Illusions Work?

Pulsating illusions work by creating a sense of movement or pulsation in the visual field, even when there is no actual motion occurring. These illusions can be caused by a variety of visual stimuli, including patterns, colors, and shapes.

One common example of a pulsating illusion is the “Neon Color Spreading” illusion, where a brightly colored object appears to pulsate and spread color to its surroundings. This illusion is created by the way that our brain processes visual information about color and brightness. When two contrasting colors, such as red and green, are placed next to each other, they create a visual contrast that our brain interprets as pulsing or moving.

Another example is the “Grid Illusion,” where a grid of intersecting lines appears to pulsate and move. This illusion is caused by the way that the intersections between the lines create contrasting areas of light and dark, which our brain interprets as moving or pulsing.

In general, pulsating illusions are thought to be caused by the way that our brain processes and integrates visual information. By studying these illusions, scientists can gain insights into the mechanisms of perception and cognition, and how our brains create our sense of reality.

Some Similar Illusions

There are many different types of illusions that are similar in that they create a sense of movement or distortion in the visual field. Here are a few examples:

  1. Motion aftereffect illusion: This illusion occurs when you stare at a moving image for a period of time and then look at a stationary object, which appears to move in the opposite direction. This effect is caused by the way that our brain adapts to the motion of the original image and then overcompensates when we look at the stationary object.
  2. Pinna-Brelstaff illusion: This illusion occurs when you look at a spiraling image that is also rotating. The image appears to move in the opposite direction of the rotation, creating a sense of disorientation and distortion.
  3. Ames room illusion: In this illusion, a room is constructed with one corner closer to the viewer than the other, creating the illusion of a trapezoidal shape. When people enter the room, they appear to shrink or grow in size as they move from one corner to the other. This effect is caused by the way that our brain processes visual depth and perspective.
  4. Ponzo illusion: This illusion occurs when two lines of the same length are placed in a converging pattern with two diagonal lines. The line that is closer to the converging point appears longer, even though it is actually the same length as the other line. This effect is caused by the way that our brain interprets visual cues such as perspective and depth.

Overall, illusions are a fascinating way to explore how our brain processes visual information and constructs our perception of reality.

Discovery of Pulsating Illusions

Pulsating illusions, like many types of visual illusions, have been studied and documented by a number of scientists and researchers over the years. It’s difficult to attribute the discovery or popularization of pulsating illusions to any one person or group.

One of the earliest documented examples of a pulsating illusion is the “phi phenomenon,” which was first described by the psychologist Max Wertheimer in 1912. The phi phenomenon occurs when two or more visual stimuli are presented in rapid succession, creating the illusion of movement or pulsation.

Since then, many other researchers have studied pulsating illusions and related phenomena, including the ways that our brain processes visual information and creates the perception of movement and motion. Some notable contributors to this field include the psychologists Richard Gregory, Edward Adelson, and Akiyoshi Kitaoka, among others.

Today, pulsating illusions continue to be a fascinating area of study for researchers in fields like psychology, neuroscience, and cognitive science, and new discoveries are constantly being made about the ways that our brains interpret and process visual information.


References and Resources – Pulsating Illusions

In addition to Pulsating Illusions, please check out our complete list of illusions.

Breathing Square Illusion

Breathing Square Illusion

In the Breathing Square Illusion, the blue square appears to pulsate or breath, when in reality it is just spinning while being partially occluded.

Breathing Square Illusion

The Breathing Square Illusion is simply a version of the pulsating square illusion shown below. In the pulsating version, the amount of occlusion from the yellow squares changes revealing the true size and direction of the blue circle.

pulsating square illusion

The both the Breathing square illusion and the Pulsating Square Illusion are caused by a variety of phenomenon. Two of the most important are the ones observable in the Occlusion illusion and the Motion Binding Illusion

If you are interested in learning more about how the Breathing Square Illusion works, scroll down to read more about it.


Table of Contents

What is the Breathing Square Illusion?

The Breathing Square Illusion is caused by a variety of phenomenon. Two of the most important are demonstrated by the Occlusion illusion and the Motion Binding Illusion

The occlusion illusion is an optical illusion that occurs when one object appears to pass behind another object, even though the two objects are actually at the same distance from the viewer. The illusion is created by the way that the brain processes visual information about the relative positions of objects in space. Here is an image of the Occlusion illusion:

The motion binding illusion is an optical illusion that occurs when a moving object appears to be bound to another object, even though the two objects are not physically connected or interacting with each other. The illusion is created by the way that the brain processes visual information about the motion of objects in the visual field. Here is an example of the Motion Binding Illusion:

Motion Bind Illusions
Created by Michael Bach

How does the Breathing Square Illusion?

The Breathing Square Illusion is caused by a variety of phenomenon. Two of the most important are the ones observable in the Occlusion illusion and the Motion Binding Illusion

The occlusion illusion is an optical illusion that occurs when one object appears to pass behind another object, even though the two objects are actually at the same distance from the viewer. The illusion is created by the way that the brain processes visual information about the relative positions of objects in space.

When one object partially obscures another object, the brain assumes that the partially obscured object is farther away than the object that is doing the obscuring. This is because in the natural world, objects that are farther away tend to be partially obscured by closer objects.

The occlusion illusion occurs when this assumption is incorrect, and the two objects are actually at the same distance from the viewer. In this case, the brain interprets the partially obscured object as being farther away than it actually is, which creates the illusion that it is passing behind the other object.

There are several factors that can influence the strength of the occlusion illusion, such as the size and shape of the objects, the position of the viewer, and the lighting conditions. In general, the illusion is strongest when the partially obscured object is small and located near the edge of the other object, and when the viewer is positioned in such a way that the illusion is maximized.

The occlusion illusion is a fascinating example of how the brain uses visual cues to interpret the three-dimensional world around us, and how these cues can sometimes be misleading.

The motion binding illusion is an optical illusion that occurs when a moving object appears to be bound to another object, even though the two objects are not physically connected or interacting with each other. The illusion is created by the way that the brain processes visual information about the motion of objects in the visual field.

When two objects are moving independently of each other but in close proximity, the brain may perceive them as moving together or “bound” to each other. This perception is thought to occur because the brain tends to group together objects that are similar in appearance or behavior, and to interpret them as part of the same visual entity.

The motion binding illusion can be demonstrated using a simple animation of two dots moving independently of each other. When the dots are close enough to each other, they can appear to be moving together or “connected” in some way, even though there is no physical connection between them.

One theory behind the motion binding illusion is that it is related to the way that the brain processes visual information about the relative positions and motions of objects in the visual field. When objects are moving in close proximity, the brain may interpret their motions as being related or connected in some way, even if there is no physical interaction between them.

The motion binding illusion was first described in a scientific paper published in 1998 by a team of researchers led by David Whitney at the University of California, Berkeley. The study was titled “Motion Integration Across Separated Stimuli” and was published in the journal Perception & Psychophysics.

The motion binding illusion is a fascinating example of how the brain uses visual information to create a coherent perception of the world around us, and how this perception can sometimes be influenced by subtle visual cues.

Some Similar Illusions to the Breathing Square Illusion

There are several other visual illusions that are similar to the Breathing Square Illusion in terms of their effects on the perception of motion and spatial relationships between objects. Here are a few examples:

  1. The apparent motion illusion: In this illusion, a series of still images presented in rapid succession can create the perception of continuous motion, even though each image is stationary.
  2. The phi phenomenon: This is a related illusion in which two or more stationary lights flashing in sequence can create the perception of a single light moving back and forth between them.
  3. The watercolor illusion: In this illusion, the edges of a colored region appear to be darker on one side than the other, creating the illusion of a shadow, even though there is no actual shadow present.
  4. The wagon wheel illusion: In this illusion, a spoked wheel appears to be moving backwards when it is actually rotating forwards, due to the way that the brain processes visual information about rotating objects.
  5. The motion aftereffect: This is a phenomenon in which prolonged exposure to a moving stimulus can create a temporary change in the perception of motion, such as perceiving stationary objects as moving in the opposite direction.

These illusions, like the motion binding illusion, all involve the brain’s interpretation of visual information about motion and spatial relationships between objects, and they demonstrate the complexity of visual perception.


References and Resources

In addition to the breathing squares illusion check out our complete list of illusions.

Pulsating Square Illusion

pulsating square illusion

This Pulsating Square Illusion creates the appearance that the blue square is pulsating when the yellow squares are large. But, when the yellow squares are small, you can clearly see that the blue square isn’t pulsating at all.

When the the blue square’s motion is occluded, our visual system concentrates on the most prominent feature, the movement of the edges, making it appear to pulsate.

The Pulsating Square Illusion is caused by a variety of phenomenon. Two of the most important are the ones observable in the Occlusion illusion and the Motion Binding Illusion

If you are interested in learning more about how the Pulsating Square Illusion works, scroll down to read more about it.

pulsating square illusion


Table of Contents

What is the Pulsating Square Illusion?

The Pulsating Square Illusion is caused by a variety of phenomenon. Two of the most important are the ones observable in the Occlusion illusion and the Motion Binding Illusion

The occlusion illusion is an optical illusion that occurs when one object appears to pass behind another object, even though the two objects are actually at the same distance from the viewer. The illusion is created by the way that the brain processes visual information about the relative positions of objects in space. Here is an image of the Occlusion illusion:

The motion binding illusion is an optical illusion that occurs when a moving object appears to be bound to another object, even though the two objects are not physically connected or interacting with each other. The illusion is created by the way that the brain processes visual information about the motion of objects in the visual field. Here is an example of the Motion Binding Illusion:

Motion Bind Illusions
Created by Michael Bach

How does the Pulsating Square Illusion?

The Pulsating Square Illusion is caused by a variety of phenomenon. Two of the most important are the ones observable in the Occlusion illusion and the Motion Binding Illusion

The occlusion illusion is an optical illusion that occurs when one object appears to pass behind another object, even though the two objects are actually at the same distance from the viewer. The illusion is created by the way that the brain processes visual information about the relative positions of objects in space.

When one object partially obscures another object, the brain assumes that the partially obscured object is farther away than the object that is doing the obscuring. This is because in the natural world, objects that are farther away tend to be partially obscured by closer objects.

The occlusion illusion occurs when this assumption is incorrect, and the two objects are actually at the same distance from the viewer. In this case, the brain interprets the partially obscured object as being farther away than it actually is, which creates the illusion that it is passing behind the other object.

There are several factors that can influence the strength of the occlusion illusion, such as the size and shape of the objects, the position of the viewer, and the lighting conditions. In general, the illusion is strongest when the partially obscured object is small and located near the edge of the other object, and when the viewer is positioned in such a way that the illusion is maximized.

The occlusion illusion is a fascinating example of how the brain uses visual cues to interpret the three-dimensional world around us, and how these cues can sometimes be misleading.

The motion binding illusion is an optical illusion that occurs when a moving object appears to be bound to another object, even though the two objects are not physically connected or interacting with each other. The illusion is created by the way that the brain processes visual information about the motion of objects in the visual field.

When two objects are moving independently of each other but in close proximity, the brain may perceive them as moving together or “bound” to each other. This perception is thought to occur because the brain tends to group together objects that are similar in appearance or behavior, and to interpret them as part of the same visual entity.

The motion binding illusion can be demonstrated using a simple animation of two dots moving independently of each other. When the dots are close enough to each other, they can appear to be moving together or “connected” in some way, even though there is no physical connection between them.

One theory behind the motion binding illusion is that it is related to the way that the brain processes visual information about the relative positions and motions of objects in the visual field. When objects are moving in close proximity, the brain may interpret their motions as being related or connected in some way, even if there is no physical interaction between them.

The motion binding illusion was first described in a scientific paper published in 1998 by a team of researchers led by David Whitney at the University of California, Berkeley. The study was titled “Motion Integration Across Separated Stimuli” and was published in the journal Perception & Psychophysics.

The motion binding illusion is a fascinating example of how the brain uses visual information to create a coherent perception of the world around us, and how this perception can sometimes be influenced by subtle visual cues.

Some Similar Illusions to the Pulsating Square Illusion

There are several other visual illusions that are similar to the Pulsating Square Illusion in terms of their effects on the perception of motion and spatial relationships between objects. Here are a few examples:

  1. The apparent motion illusion: In this illusion, a series of still images presented in rapid succession can create the perception of continuous motion, even though each image is stationary.
  2. The phi phenomenon: This is a related illusion in which two or more stationary lights flashing in sequence can create the perception of a single light moving back and forth between them.
  3. The watercolor illusion: In this illusion, the edges of a colored region appear to be darker on one side than the other, creating the illusion of a shadow, even though there is no actual shadow present.
  4. The wagon wheel illusion: In this illusion, a spoked wheel appears to be moving backwards when it is actually rotating forwards, due to the way that the brain processes visual information about rotating objects.
  5. The motion aftereffect: This is a phenomenon in which prolonged exposure to a moving stimulus can create a temporary change in the perception of motion, such as perceiving stationary objects as moving in the opposite direction.

These illusions, like the motion binding illusion, all involve the brain’s interpretation of visual information about motion and spatial relationships between objects, and they demonstrate the complexity of visual perception.


References and Resources

In addition to the pulsating squares illusion check out our complete list of illusions.

Rotating Squares Illusion

Rotating Squares Illusion

This Rotating Squares Illusion is a visual phenomenon that creates the perception of rotation in a stationary image. In this illusion, a set of stationary squares appears to move or rotate, even though the image is 100% static.

If you are interested in learning more about the Rotating Squares Illusion, scroll down to read about all about it.

Rotating Squares Illusion


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What is the Rotating Squares Illusion?

The rotating squares illusion is a visual phenomenon that creates the perception of motion in a static image. In this illusion, a series of squares appear to rotate in a clockwise or counterclockwise direction, even though the image is not actually moving.

The rotating squares illusion is created by the way the squares in the image are arranged. The shapes are arranged in a way that creates an illusory sense of motion as the viewer’s gaze moves across the image. The illusion is often enhanced by the use of bright colors or high contrast, which can further exaggerate the perceived motion.

The rotating squares illusion is a variant of the rotating snakes illusion which was first created by the Japanese psychologist Akiyoshi Kitaoka in 2003. Since then, it has become a popular subject for scientific research on visual perception, as well as a source of inspiration for artists and designers interested in exploring the relationship between visual stimuli and perception.

The illusion is thought to be caused by the way the neurons in the visual system respond to certain types of visual stimuli. The neurons that respond to color, brightness, and orientation are particularly important in creating the illusion of motion in the rotating squares image.

Overall, the rotating squares illusion is an example of how the brain can be tricked into perceiving motion in static images, and it is similar to other illusions that create the perception of motion, such as the peripheral drift illusion and the motion aftereffect.

How does the Rotating Squares Illusion Work?

The exact mechanisms behind the rotating squares illusion are not yet fully understood, but it is believed to be caused by a combination of factors that affect the way the visual system processes the image.

One factor is the way the squares in the image are arranged. The shapes are often arranged in a way that creates a sense of motion and flow, which can be further enhanced by the use of bright colors or high contrast.

Another factor is the way the visual system processes information about motion. The illusion is thought to rely on the brain’s ability to detect motion in certain directions, such as clockwise or counterclockwise. The neurons in the visual system that respond to motion can become fatigued if they are exposed to a stimulus for a prolonged period, which can create an aftereffect where the viewer perceives motion in the opposite direction.

In the case of the rotating squares illusion, it is believed that the combination of the arrangement of the shapes and the motion-sensitive neurons in the visual system create the illusion of rotation, even though the image is actually static. The exact neural mechanisms that underlie this phenomenon are still the subject of ongoing research.

Overall, the rotating squares illusion is an example of how the brain can be tricked into perceiving motion in static images, and it highlights the complex ways in which visual stimuli are processed by the visual system.

Some Similar Illusions

There are several visual illusions that are similar to the rotating squares illusion in that they create the perception of motion in a static image. Here are some examples:

  1. The spinning dancer illusion: This illusion depicts a silhouette of a dancer that appears to be spinning either clockwise or counterclockwise, depending on the viewer’s perception. The illusion is created by the way the silhouette is presented, with certain visual cues creating the perception of motion.
  2. The waterfall illusion: This illusion creates the perception of motion in a stationary image of a waterfall. When viewed for a prolonged period, the image can create the sensation of motion in the opposite direction of the actual flow of the waterfall.
  3. The motion aftereffect: This illusion occurs when prolonged exposure to a moving stimulus creates the perception of motion in the opposite direction when viewing a stationary image. This illusion is similar to the rotating snakes illusion in that it relies on the way the visual system processes information about motion.
  4. The peripheral drift illusion: This illusion creates the perception of motion in a static image by using a pattern of concentric circles or spirals that appear to rotate around a central point. The illusion is created by the way the pattern is arranged and the way the visual system processes information about motion.
  5. Rotating snakes illusion: A peripheral drift illusion that consists of a grid of shapes, with some of them appearing to be rotating or undulating. The illusion is created by the interaction of the shapes with the neural processing of the visual system.

Overall, these illusions demonstrate how the visual system can be tricked into perceiving motion in static images, and they highlight the complexity of visual processing in the brain.

Discovery of the Rotating Squares Illusion

The Rotating Squares Illusion is a variant of the rotating snakes illusion which was created by Akiyoshi Kitaoka, a professor of psychology at Ritsumeikan University in Japan. Kitaoka is known for creating a variety of visual illusions that exploit the way the visual system processes information about color, brightness, and motion.

The rotating snakes illusion, which Kitaoka created in 2003, has become one of his most popular works and has been studied extensively by researchers interested in visual perception and the neuroscience of vision.


References and Resources

Check out our complete list of illusions.

Cool Peripheral Drift Illusion

peripheral drift illusion

This Cool Peripheral Drift Illusion is a 100% static image. It only appears to move due to an illusion called Peripheral Drift Illusion.

If you are interested to learn more about these types of Illusions, scroll down past the image to read all about it.

peripheral drift illusion


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What is a Peripheral Drift Illusion?

The peripheral drift illusion is a visual illusion that occurs when stationary patterns of high contrast, such as black and white stripes or grids, appear to drift or move in a particular direction when viewed in the peripheral vision. This illusion is believed to be caused by the way the brain processes visual information from the retina.

The illusion is thought to be related to the way the neurons in the visual system respond to certain types of visual stimuli. When viewing a pattern of high contrast, the neurons in the retina and visual cortex respond by firing in a particular way that creates the illusion of movement. This can cause the pattern to appear to be in motion, even though it is actually stationary.

This illusion is often used in scientific studies to investigate the mechanisms of visual perception and to explore how the brain processes visual information. It is also a popular subject for optical art and other forms of visual art, as it can create striking and unusual visual effects.

How do Peripheral Drift Illusions Work?

The peripheral drift illusion is a visual phenomenon that occurs when stationary patterns of high contrast appear to move or drift in a particular direction when viewed in the peripheral vision. This illusion is thought to be caused by the way the neurons in the visual system respond to certain types of visual stimuli.

When viewing a stationary pattern of high contrast, such as black and white stripes or grids, the neurons in the retina and visual cortex respond by firing in a way that creates the illusion of movement. These neurons are sensitive to changes in contrast and edge orientation, and when these properties are presented in a particular way, they can create the perception of motion.

One theory suggests that the peripheral drift illusion is caused by the interactions between neurons in the visual cortex that respond to different orientations of edges in the visual field. When the orientation of the edges in the pattern changes, these neurons fire in a way that creates the perception of movement.

Another theory suggests that the illusion is caused by the way the brain processes information from the retina. The retina sends signals to the brain that are influenced by the movement of the eye. When the eye is moving, these signals are suppressed, which can create the perception of stationary objects appearing to move in the opposite direction.

Overall, the exact mechanisms behind the these illusions are not fully understood, but it is clear that it is related to the way the neurons in the visual system respond to certain types of visual stimuli.

Some Similar Illusions

There are several illusions that are similar to the peripheral drift illusion. These include:

  1. Motion aftereffect: This illusion occurs when you stare at a moving pattern for a period of time, and then look at a stationary object. The object will appear to move in the opposite direction of the original pattern.
  2. Waterfall illusion: This illusion is similar to the motion aftereffect but involves a continuous stream of motion. When you stare at a waterfall for a period of time, the stationary rocks next to it may appear to move in the opposite direction.
  3. Pinna-Brelstaff illusion: This illusion involves a spiral pattern that appears to rotate when you move your head. However, the illusion is actually created by the way the pattern is designed and can occur even when you’re not moving.
  4. Rotating snakes illusion: This illusion involves a series of interlocking circles that appear to rotate even though the image is static.
  5. Café wall illusion: This illusion involves a pattern of black and white tiles that appear to be slanted, even though they are actually straight.

All of these illusions, like the peripheral drift illusion, are caused by the way the neurons in the visual system respond to certain types of visual stimuli. They are all examples of how the brain can be tricked into perceiving motion or other distortions in static images.

Discovery of Peripheral Drift Illusion

The peripheral drift illusion is a visual phenomenon that has been observed and studied by many researchers over the years, and it is not attributed to any single discoverer.

The peripheral drift illusion was actually first described by Jocelyn Faubert in 1991. Faubert is a Canadian visual neuroscientist who first observed the illusion while studying the perception of complex motion patterns. He named the phenomenon “drifting texture” and published his findings in the journal Vision Research in 1991.

Faubert’s work on the peripheral drift illusion was important because it helped to highlight the importance of studying visual processing at the level of the visual system rather than just focusing on the properties of individual stimuli. Since Faubert’s initial description of the phenomenon, the peripheral drift illusion has become an important tool for studying the mechanisms of visual perception and has led to many insights into how the brain processes visual information.


References and Resources

Check out our complete list of illusions.

Scrolling Illusions

Scrolling Illusions

These cool Scrolling Illusions have an illusory effect when they are moving. If you scroll up and down the screen, you’ll see the shapes move or see new shapes appear.

Give these scrolling illusions a try yourself, and if you are interested, scroll down a bit more to read more about scrolling illusions.

Scrolling Illusions
Scrolling Illusions
Scrolling Illusions
Scrolling Illusions
Scrolling Illusions
In this one, and arrow pointing upward appears when you scroll.
Can you see it?


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What are Scrolling Illusions?

Scrolling illusions are a type of visual illusion that occurs when a person views a moving or scrolling pattern, image or animation that creates a false perception of motion, depth, or shape. These illusions occur because our brains try to make sense of the rapidly changing visual information that is presented to our eyes.

One example of a scrolling illusion is the “rotating snakes” illusion, where a static image of black and white snakes appears to be moving and rotating when the image is scrolled up and down on a screen. Another example is the “wavy motion illusion,” where a scrolling pattern of black and white stripes appears to be moving in a wave-like motion, even though the pattern is actually static.

These illusions can be used in art and design to create dynamic and engaging visual experiences, and they can also be used in neuroscience research to study the mechanisms of visual perception and motion processing in the brain.

How do Scrolling Illusions Work?

They work by manipulating the way our visual system processes motion and depth cues. When we view a scrolling pattern, our brain tries to make sense of the rapidly changing visual information by extrapolating the motion and shape of the pattern over time.

One mechanism that contributes to scrolling illusions is the phi phenomenon, which is the perception of motion that occurs when two or more static images are presented in rapid succession. In the case of scrolling illusions, the rapid succession of images is created by scrolling the image on a screen. This rapid succession of images creates the illusion of motion in the pattern.

Another mechanism that contributes to is the use of conflicting depth cues. When scrolling patterns contain conflicting depth cues, such as changes in color, contrast, or texture, our visual system has difficulty resolving the motion and shape of the pattern. This ambiguity in the depth cues can create the illusion of motion in the pattern.

In addition to these mechanisms, scrolling illusions may also be influenced by top-down processes, such as attention and expectation. For example, if we expect to see motion in a scrolling pattern, our brain may be more likely to perceive motion, even if the pattern does not contain explicit depth cues.

Overall, scrolling illusions are a fascinating example of how our brain processes visual information and can be used to study the mechanisms of visual perception and motion processing.

Some Similar Illusions

There are many different types of visual illusions that are similar to scrolling illusions in that they manipulate our perception of motion and depth cues. Here are a few examples:

  1. Motion illusions: These illusions create the perception of motion in a static image. One example is the “motion aftereffect,” where prolonged viewing of a moving pattern can create the illusion of motion in a stationary object.
  2. Stereograms: These are two-dimensional images that use stereoscopic depth cues to create the illusion of a three-dimensional object. One popular type of stereogram is the “Magic Eye” image, where a hidden 3D image can be seen by focusing on a repeated pattern in the image.
  3. Optical illusions: These illusions create an image that is different from the physical reality of the object being depicted.
  4. Ambiguous figures: These are images that can be interpreted in more than one way, depending on how the viewer perceives the shape and orientation of the objects in the image. One example is the “Necker cube,” which can be perceived as a cube that is oriented in two different directions.

Overall, visual illusions are a fascinating way to explore how our brain processes visual information and can provide insights into the mechanisms of perception and cognition.

Discovery of Scrolling Illusions

It’s difficult to attribute the discovery of scrolling illusions to a single individual, as these illusions have been observed and studied by many researchers in the field of visual perception and neuroscience over the years.

One of the earliest documented examples of a scrolling illusion is the “wagon-wheel effect,” which is the perception of backwards motion in a rotating wagon wheel when viewed through a film camera. This effect was first described by the photographer Eadweard Muybridge in the late 1800s.

More recent studies have been conducted by researchers such as Akiyoshi Kitaoka, Stuart Anstis, and Michael Bach, among others. These researchers have used scrolling illusions to study various aspects of visual perception, such as motion processing, depth perception, and visual attention.

Overall, the study of these illusions has been a collaborative effort among many researchers over the years, and these illusions continue to be a fascinating topic of research in the field of visual perception.


References and Resources – Scrolling Illusions

Check out our complete list of illusions.

Spinning Spiral Illusion

Spinning Spiral Illusion

This Spinning Spiral Illusion uses the phenomenon peripheral drift to create the illusion of motion.

When you view the image directly, there doesn’t appear to be much movement. However, when you are looking close, but not directly at the image (from your periphery) the image will seem to spin.

So, when you are reading this text, the object will appear to spin, but you can stop the motion by looking directly at the image.

If you are interested in the learning more about the Spinning Spiral Illusion peripheral drift, scroll down to learn more about it.

Spinning Spiral Illusion


Table of Contents

What is the Spinning Spiral Illusion?

The Spinning Spiral Illusion is a type of peripheral drift illusion which creates the impression of motion in a stationary image. The illusion was discovered by American psychologist and artist Roger Shepard in 1990.

The peripheral drift illusion typically involves a pattern of concentric circles or spirals that are arranged in a way that creates the impression of motion in the periphery of the visual field. The illusion occurs because the patterns create conflicting cues about the direction of motion, which can cause the visual system to perceive motion where none exists.

One common example of the peripheral drift illusion is the Pinna-Brelstaff illusion, which was discovered by Italian neuroscientist and artist Massimo Pinna and British artist Patrick Brelstaff in 2000. In this illusion, a series of black and white wedges are arranged in a spiral pattern. When the image is fixated, the wedges appear to be moving in a circular motion, despite the fact that they are actually stationary.

The peripheral drift illusion is thought to occur because the pattern of the concentric circles or spirals creates a gradient of motion signals that conflicts with other motion signals in the visual field. This conflict can create the impression of motion in the periphery, even when the image is actually stationary.

The peripheral drift illusion is a fascinating example of how the brain processes visual information and can create the illusion of motion where none exists.

How does the Spinning Spiral Illusion Work?

The Spinning Spiral Illusion is a peripheral drift illusion which works by exploiting the way the visual system processes visual information in the periphery of the visual field. When we fixate our eyes on a particular point, our visual system processes information in a way that prioritizes the information in the fovea, the central region of the retina where visual acuity is highest. As a result, the information in the periphery of the visual field is processed differently than information in the fovea.

The peripheral drift illusion typically involves a pattern of concentric circles or spirals that are arranged in a way that creates conflicting cues about the direction of motion. For example, the pattern may include alternating black and white regions that are arranged in a spiral pattern. When the image is fixated, the conflicting motion cues can create the impression of motion in the periphery of the visual field, even though the image itself is stationary.

The conflicting motion cues in the peripheral drift illusion can arise from several different sources. One source is the radial pattern of the concentric circles or spirals, which can create the impression of motion toward or away from the center of the pattern. Another source is the alternating contrast between different regions of the pattern, which can create the impression of motion in different directions.

The exact mechanisms behind the peripheral drift illusion are not fully understood, but it is thought to involve a complex interplay between different areas of the brain involved in visual processing. Some researchers have suggested that the illusion may involve interactions between the visual cortex and the neurons in the retina, while others have suggested that it may involve top-down processing from higher brain areas. Nonetheless, the peripheral drift illusion is a fascinating example of how the brain can create the illusion of motion where none exists.

Some Similar Illusions

There are several other illusions that are similar to the Spinning Spiral Illusion and also create the impression of motion in a stationary image. Here are a few examples:

  1. Fraser spiral illusion: This illusion was discovered by British psychologist Sir James Fraser in 1908 and involves a spiral pattern of black and white wedges. When the image is fixated, the wedges appear to be rotating, even though the image is stationary.
  2. Lilac chaser illusion: This illusion involves a series of 12 colored circles arranged in a circle on a black background. When the viewer fixates on the center of the circle and the outermost circle is removed, the remaining circles appear to rotate in a circle and a “lilac chaser” appears in the location where the removed circle was located.
  3. Rotating snakes illusion: This illusion involves a series of overlapping circles and arcs of different colors arranged in a circular pattern. When the image is fixated, the overlapping patterns appear to rotate in a circle.

These illusions, like the peripheral drift illusion, rely on the visual system’s processing of motion cues in the periphery of the visual field to create the impression of motion. They are all fascinating examples of how the brain can create complex visual experiences from simple visual inputs.

Discovery of the Spinning Spiral Illusion

The Spinning Spiral Illusion is a type of peripheral drift illusion which was discovered by American psychologist and artist Roger Shepard in 1990. Shepard is well known for his work on visual perception and cognitive psychology, and he has made significant contributions to our understanding of how the brain processes visual information. The peripheral drift illusion is just one example of the many fascinating optical illusions that Shepard has helped to uncover over the course of his career.


References and Resources

Check out our complete list of illusions.