The Ishihara Illusion is a type of optical illusion that uses a series of colored dots or circles to create the illusion of a hidden image or figure.

The illusion is created by using dots or circles of different colors and sizes to form a pattern that is visible to some people but not to others. For example, a person with normal color vision will see a number or a shape hidden in the dots or circles, while a person with color blindness will see only a random pattern.

Table of Contents

• How does the Ishihara Illusion work?
• Versions of the Ishihara Illusion
• Illusions like the Ishihara Illusion
• Discovery of the Ishihara Illusion
• References and Resources
• Sign up for emails from Mental Bomb

How does the Ishihara Illusion work?

The Ishihara Illusion works by using dots or circles of different colors and sizes to form a pattern that is visible to some people, but not to others.

The pattern is designed to be easily recognizable by people with normal color vision, but difficult or impossible to see for people with color blindness.

For example, in the Ishihara test for red-green color blindness, the illusion is created by using a combination of red and green dots in a pattern that forms a number or a shape.

For a person with normal color vision, the red and green dots will appear distinct and the number or shape will be easily recognizable. However, for a person with red-green color blindness, the red and green dots will appear similar and the number or shape will not be distinguishable.

The Ishihara Illusion works by taking advantage of the fact that color blindness is caused by a deficiency or dysfunction in the cones in the retina, which are responsible for detecting color. In red-green color blindness, the red and green cones do not function properly, which makes it difficult for the person to distinguish between red and green.

By using a combination of red and green dots to create the illusion, the Ishihara Illusion is able to test for this specific type of color blindness.

In summary, the Ishihara Illusion works by using dots or circles of different colors and sizes to create a pattern that is visible to people with normal color vision but not to people with color blindness, it takes advantage of the way color blindness is caused by deficiencies in the cones in the retina and it is specifically designed to test for red-green color blindness.

Versions of the Ishihara Illusion

The following is an alternate versions of the Ishihara Illusion:

Illusions like the Ishihara Illusion

Color illusions work by exploiting the way that the human visual system processes color and light. The human eye is able to detect light in the visible spectrum, which consists of different wavelengths of light that correspond to different colors. The brain then interprets this information to create our perception of color. However, the way the brain perceives color is not always a perfect representation of the physical reality.

There are several factors that can influence the way that the visual system processes color and light, which can lead to the perception of illusions. These factors include:

Contrast: The way that the brain perceives color can be influenced by the surrounding colors and patterns. High-contrast borders around an area of color can cause the brain to interpret the color as spreading or “bleeding” beyond the actual boundaries of the object.

Lighting conditions: The way that the brain perceives color can also be affected by the lighting conditions. For example, when an object is viewed in bright light, the eye’s color receptors may become fatigued, causing the brain to perceive colors differently than they actually are.

Color adaptation: The brain adapts to the colors that we see over time, which can influence the perception of color. For example, if an individual looks at a red object for an extended period of time, the brain will adapt to the red, and when that person looks at a white object, it will appear to have a pinkish hue.

Color constancy: The brain is able to adjust the perception of color based on the context in which it is viewed. This can create illusions where the same color appears to be different depending on the surrounding colors.

Shape use: Some illusions like the Hermann grid illusion or the Cafe Wall illusion, use specific patterns and shapes to manipulate the perception of color and shape.

Some related illusions include the following:

The Neon Color Spreading illusion refers to the visual phenomenon where an area of color appears to spread or “bleed” beyond its intended boundaries.

The Bezold Effect: This illusion is created by placing two or more colors next to each other, and the way they appear to change when they are close to one another.  

The Mach Band Illusion: This illusion is created by the way the brain perceives edges of an object. When an object has a gradient of color, the edges of the object appear to be darker or lighter than they actually are.

The Hermann Grid Illusion: This illusion is created by the way the brain perceives intersections of lines. When the intersections of a grid of lines are viewed, small gray dots appear at the intersections, even though they are not actually there.

The Watercolor Illusion: This illusion is created by the way the brain perceives edges of an object. When an object is surrounded by a colored halo, the object appears to have a different color than it actually does.

The Chevreul Illusion: This illusion is created by the way the brain perceives edges of an object. When the edges of an object are surrounded by a contrasting color, the edges appear to be a different color than they actually are. Chevreul’s illusion is similar to Mach bands, but they work in different ways. Chevreul’s illusion is an effect on the perception of hue, while Mach bands is an effect on the perception of brightness.

The flash lag illusion is a visual illusion that is based on the perception of the temporal relationship between a moving object and a flash of light. The illusion occurs when a moving object is followed by a sudden flash of light, and the perceived location of the flash appears to be behind the actual location of the object.

The Café Wall Illusion is a visual illusion that is created by a grid of alternating light and dark horizontal and vertical lines. The lines appear to be bent or tilted, even though they are actually straight.

Discovery of the Ishihara Illusion

It is named after Dr. Shinobu Ishihara, a Japanese ophthalmologist who first published a book of these types of illusions in 1917 for use in testing for color blindness.

Dr. Shinobu Ishihara was a Japanese ophthalmologist who is best known for creating the Ishihara test, a widely used test for color blindness. He was born in 1879 and graduated from Tokyo Imperial University in 1905. He later became a professor of ophthalmology at the same university and went on to become the director of the university’s eye hospital. Dr. Ishihara published his first book of color vision tests in 1917, which included the Ishihara test for red-green color blindness.

Dr. Ishihara’s test quickly became the most widely used test for color blindness and is still in use today. The Ishihara test consists of a series of plates, each containing a number or a shape hidden in dots of different colors. It is used to diagnose red-green color blindness, which is the most common type of color blindness. The test is simple, easy to administer, and has been found to be highly accurate in detecting red-green color blindness.

Dr. Ishihara made many contributions to the field of ophthalmology and color vision, and his test is still considered a standard diagnostic tool for color blindness. He passed away in 1963.

References and Resources

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The Mach band illusion is a perceptual phenomenon that occurs when the human visual system processes gradients of luminance.

The illusion creates the appearance of increased brightness at the edges of a transition between a light and dark area, even though the actual brightness remains constant. This can create the illusion of a “band” or “halo” of light around the edge of the transition.

Table of Contents

• How does the Mach Band Illusion work?
• Versions of the Mach Band Illusion
• Illusions like the Mach Band Illusion
• Discovery of the Mach Band Illusion
• References and Resources
• Sign up for emails from Mental Bomb

How does the Mach Band Illusion work?

The effect is caused by the way the human visual system processes light and dark areas. The visual system is more sensitive to changes in luminance at the edges of an object or image, which can cause it to perceive the edges as being brighter or darker than they actually are. This effect is more pronounced when the transition is gradual, such as in a gradient.

The Mach band effect can be observed in many everyday situations, such as when viewing a photograph or a computer screen. It can also be observed in natural scenes, for example, when looking at a bright sky and a dark land.

The Mach band illusion is not considered as a visual illusion in the traditional sense, but rather a visual artifact of the way the visual system processes light and dark.

Mach Bands are similar, but different from Chevreul’s illusion. They are both visual illusions that involve the perception of brightness and contrast, but they are not the same phenomenon.

Chevreul’s illusion is an optical illusion that was first described by Michel Eugène Chevreul in 1839. It is also known as the “simultaneous contrast illusion” and it occurs when two colors are placed next to each other, and their perceived hues appear to change. This happens due to the way that the brain processes color and light, and the way that it adjusts the perception of color based on the surrounding colors.

Mach bands, on the other hand, is an optical illusion that was first described by Ernst Mach in 1865. It is also known as the “Mach effect” and it causes the perception of a band of increased or decreased brightness at the edge of a sharply defined color boundary. This is caused by the way that the visual system processes light and color, and the way that it interprets the edges of objects.

In summary, Chevreul’s illusion and Mach bands are two different visual illusions that involve the perception of brightness and contrast, but they work in different ways. Chevreul’s illusion is an effect on the perception of hue, while Mach bands is an effect on the perception of brightness.

Versions of the Mach Band Illusion

The following is an alternate versions of the Neon Color Spreading Illusion:

Illusions like the Mach Band Illusion

Color illusions work by exploiting the way that the human visual system processes color and light. The human eye is able to detect light in the visible spectrum, which consists of different wavelengths of light that correspond to different colors. The brain then interprets this information to create our perception of color. However, the way the brain perceives color is not always a perfect representation of the physical reality.

There are several factors that can influence the way that the visual system processes color and light, which can lead to the perception of illusions. These factors include:

Contrast: The way that the brain perceives color can be influenced by the surrounding colors and patterns. High-contrast borders around an area of color can cause the brain to interpret the color as spreading or “bleeding” beyond the actual boundaries of the object.

Lighting conditions: The way that the brain perceives color can also be affected by the lighting conditions. For example, when an object is viewed in bright light, the eye’s color receptors may become fatigued, causing the brain to perceive colors differently than they actually are.

Color adaptation: The brain adapts to the colors that we see over time, which can influence the perception of color. For example, if an individual looks at a red object for an extended period of time, the brain will adapt to the red, and when that person looks at a white object, it will appear to have a pinkish hue.

Color constancy: The brain is able to adjust the perception of color based on the context in which it is viewed. This can create illusions where the same color appears to be different depending on the surrounding colors.

Shape use: Some illusions like the Hermann grid illusion or the Cafe Wall illusion, use specific patterns and shapes to manipulate the perception of color and shape.

Some related illusions include the following:

The Neon Color Spreading illusion refers to the visual phenomenon where an area of color appears to spread or “bleed” beyond its intended boundaries.

The Bezold Effect: This illusion is created by placing two or more colors next to each other, and the way they appear to change when they are close to one another.  

The Hermann Grid Illusion: This illusion is created by the way the brain perceives intersections of lines. When the intersections of a grid of lines are viewed, small gray dots appear at the intersections, even though they are not actually there.

The Watercolor Illusion: This illusion is created by the way the brain perceives edges of an object. When an object is surrounded by a colored halo, the object appears to have a different color than it actually does.

The Chevreul Illusion: This illusion is created by the way the brain perceives edges of an object. When the edges of an object are surrounded by a contrasting color, the edges appear to be a different color than they actually are. Chevreul’s illusion is similar to Mach bands, but they work in different ways. Chevreul’s illusion is an effect on the perception of hue, while Mach bands is an effect on the perception of brightness.

The Ishihara Illusion: This illusion is created by the way the brain perceives colors. When a color is surrounded by a contrasting color, the brain perceives the color to be different than it actually is.

The flash lag illusion is a visual illusion that is based on the perception of the temporal relationship between a moving object and a flash of light. The illusion occurs when a moving object is followed by a sudden flash of light, and the perceived location of the flash appears to be behind the actual location of the object.

The Café Wall Illusion is a visual illusion that is created by a grid of alternating light and dark horizontal and vertical lines. The lines appear to be bent or tilted, even though they are actually straight.

Discovery of the Mach Band Illusion

It was first described by Ernst Mach in the late 19th century.

Ernst Mach (1838-1916) was an Austrian physicist and philosopher who made important contributions to the fields of physics, physiology and psychology.

He is best known for his work in the field of sensory perception, in particular for his study of the perception of visual images and the nature of visual illusion.

He was one of the first to study the perception of movement and the illusion of movement.

He is most famous for the Mach band illusion, which he described in the late 19th century and it is a visual effect that creates the appearance of increased brightness at the edges of a transition between a light and dark area, even though the actual brightness remains constant.

He also made contributions to the understanding of sound and hearing, and studied the perception of space, time, and motion.

He was also a philosopher and a historian of science.

His ideas had a significant influence on the development of logical positivism and the Vienna Circle. He was a professor of physics in Prague and Vienna Universities.

References and Resources

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The Hermann Grid Illusion is created by the way the brain perceives intersections of lines. When the intersections of a grid of lines are viewed, small gray dots appear at the intersections, even though they are not actually there.

Table of Contents

• How does the Hermann Grid Illusion work?
• Versions of the Hermann Grid Illusion
• Illusions like the Hermann Grid Illusion
• Discovery of the Hermann Grid Illusion
• References and Resources
• Sign up for emails from Mental Bomb

How does the Hermann Grid Illusion work?

The Hermann Grid Illusion is a visual illusion that occurs when viewing a pattern of light and dark lines crossing each other to form a grid. The illusion creates the appearance of gray spots at the intersections of the lines, even though the intersections are actually the same color as the background. The illusion is named after Ludimar Hermann, a German physiologist, who first described it in 1870.

The illusion is caused by the way the human visual system processes light and dark areas. The visual system tends to perceive the edges of objects or images as being brighter or darker than they actually are. When viewing the pattern of lines, the visual system perceives the edges of the lines as being brighter than the background. This can cause the visual system to perceive the intersections of the lines as being darker than the background, creating the illusion of gray spots.

The Hermann Grid Illusion is often used in vision science to study the way the visual system processes light and dark areas and to understand the neural mechanisms underlying visual perception.

In summary, the Hermann Grid Illusion is a visual effect that occurs when viewing a pattern of light and dark lines crossing each other to form a grid, creating the appearance of gray spots at the intersections of the lines, even though the intersections are actually the same color as the background.

Versions of the Hermann Grid Illusion

The following is an alternate versions of the Neon Color Spreading Illusion:

Illusions like the Hermann Grid Illusion

Color illusions work by exploiting the way that the human visual system processes color and light. The human eye is able to detect light in the visible spectrum, which consists of different wavelengths of light that correspond to different colors. The brain then interprets this information to create our perception of color. However, the way the brain perceives color is not always a perfect representation of the physical reality.

There are several factors that can influence the way that the visual system processes color and light, which can lead to the perception of illusions. These factors include:

Contrast: The way that the brain perceives color can be influenced by the surrounding colors and patterns. High-contrast borders around an area of color can cause the brain to interpret the color as spreading or “bleeding” beyond the actual boundaries of the object.

Lighting conditions: The way that the brain perceives color can also be affected by the lighting conditions. For example, when an object is viewed in bright light, the eye’s color receptors may become fatigued, causing the brain to perceive colors differently than they actually are.

Color adaptation: The brain adapts to the colors that we see over time, which can influence the perception of color. For example, if an individual looks at a red object for an extended period of time, the brain will adapt to the red, and when that person looks at a white object, it will appear to have a pinkish hue.

Color constancy: The brain is able to adjust the perception of color based on the context in which it is viewed. This can create illusions where the same color appears to be different depending on the surrounding colors.

Shape use: Some illusions like the Hermann grid illusion or the Cafe Wall illusion, use specific patterns and shapes to manipulate the perception of color and shape.

Some related illusions include the following:

The Neon Color Spreading illusion refers to the visual phenomenon where an area of color appears to spread or “bleed” beyond its intended boundaries.

The Bezold Effect: This illusion is created by placing two or more colors next to each other, and the way they appear to change when they are close to one another.  

The Mach Band Illusion: This illusion is created by the way the brain perceives edges of an object. When an object has a gradient of color, the edges of the object appear to be darker or lighter than they actually are.

The Watercolor Illusion: This illusion is created by the way the brain perceives edges of an object. When an object is surrounded by a colored halo, the object appears to have a different color than it actually does.

The Chevreul Illusion: This illusion is created by the way the brain perceives edges of an object. When the edges of an object are surrounded by a contrasting color, the edges appear to be a different color than they actually are. Chevreul’s illusion is similar to Mach bands, but they work in different ways. Chevreul’s illusion is an effect on the perception of hue, while Mach bands is an effect on the perception of brightness.

The Ishihara Illusion: This illusion is created by the way the brain perceives colors. When a color is surrounded by a contrasting color, the brain perceives the color to be different than it actually is.

The flash lag illusion is a visual illusion that is based on the perception of the temporal relationship between a moving object and a flash of light. The illusion occurs when a moving object is followed by a sudden flash of light, and the perceived location of the flash appears to be behind the actual location of the object.

The Café Wall Illusion is a visual illusion that is created by a grid of alternating light and dark horizontal and vertical lines. The lines appear to be bent or tilted, even though they are actually straight.

Discovery of the Hermann Grid Illusion

The illusion is named after Ludimar Hermann, a German physiologist, who first described it in 1870

Ludimar Hermann (1838-1914) was a German physiologist and psychologist who was best known for his work on the perception of visual images and the nature of visual illusion. He is most famous for his discovery of the Hermann grid illusion, which he described in 1870. It is a visual effect that occurs when viewing a pattern of light and dark lines crossing each other to form a grid, creating the appearance of gray spots at the intersections of the lines, even though the intersections are actually the same color as the background.

He studied medicine in Berlin, later he was a professor of physiology and neurology in Würzburg and Tübingen. He also worked on other aspects of visual perception, such as the perception of movement and the illusion of movement, as well as on the perception of sound and hearing. His ideas had a significant influence on the development of psychology and neuroscience. He was also an important figure in the history of neurology and psychiatry.

References and Resources

Check out our complete list of illusions.

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The Bezold Effect is a phenomenon in color theory where a change in one color can cause the perception of the surrounding colors to change as well.

This effect is caused by the way the human visual system processes color, and it is often used in art and design to create the illusion of depth or movement.

Table of Contents

• How does the Bezold Effect Illusion work?
• Versions of the Bezold Effect Illusion
• Illusions like the Bezold Effect Illusion
• Discovery of the Bezold Effect Illusion
• References and Resources

How does the Bezold Effect Illusion work?

The Bezold Effect works by the way the human visual system processes color.

When colors are placed next to each other, the brain tends to adjust the perception of the colors to account for their relationship to one another.

Specifically, when a color is placed next to another color that is similar in hue but of a different saturation or brightness, the brain will perceive the colors as being more dissimilar than they actually are.

This can create the illusion of movement or depth in a design.

On the other hand, if colors that are different in hue but similar in saturation and brightness are placed next to each other, the brain will perceive them as being more similar than they actually are.

This can make a design appear flat or static.

The Bezold effect can be used in art, design, and advertising to create the illusion of movement, depth, or to make certain elements stand out.

Versions of the Bezold Effect Illusion

The following is an alternate versions of the Bezold Effect Illusion:

Illusions like the Bezold Effect Illusion

Color illusions work by exploiting the way that the human visual system processes color and light. The human eye is able to detect light in the visible spectrum, which consists of different wavelengths of light that correspond to different colors. The brain then interprets this information to create our perception of color. However, the way the brain perceives color is not always a perfect representation of the physical reality.

There are several factors that can influence the way that the visual system processes color and light, which can lead to the perception of illusions. These factors include:

Contrast: The way that the brain perceives color can be influenced by the surrounding colors and patterns. High-contrast borders around an area of color can cause the brain to interpret the color as spreading or “bleeding” beyond the actual boundaries of the object.

Lighting conditions: The way that the brain perceives color can also be affected by the lighting conditions. For example, when an object is viewed in bright light, the eye’s color receptors may become fatigued, causing the brain to perceive colors differently than they actually are.

Color adaptation: The brain adapts to the colors that we see over time, which can influence the perception of color. For example, if an individual looks at a red object for an extended period of time, the brain will adapt to the red, and when that person looks at a white object, it will appear to have a pinkish hue.

Color constancy: The brain is able to adjust the perception of color based on the context in which it is viewed. This can create illusions where the same color appears to be different depending on the surrounding colors.

Shape use: Some illusions like the Hermann grid illusion or the Cafe Wall illusion, use specific patterns and shapes to manipulate the perception of color and shape.

Some related illusions include the following:

The Neon Color Spreading illusion refers to the visual phenomenon where an area of color appears to spread or “bleed” beyond its intended boundaries.

The Mach Band Illusion: This illusion is created by the way the brain perceives edges of an object. When an object has a gradient of color, the edges of the object appear to be darker or lighter than they actually are.

The Hermann Grid Illusion: This illusion is created by the way the brain perceives intersections of lines. When the intersections of a grid of lines are viewed, small gray dots appear at the intersections, even though they are not actually there.

The Watercolor Illusion: This illusion is created by the way the brain perceives edges of an object. When an object is surrounded by a colored halo, the object appears to have a different color than it actually does.

The Chevreul Illusion: This illusion is created by the way the brain perceives edges of an object. When the edges of an object are surrounded by a contrasting color, the edges appear to be a different color than they actually are. Chevreul’s illusion is similar to Mach bands, but they work in different ways. Chevreul’s illusion is an effect on the perception of hue, while Mach bands is an effect on the perception of brightness.

The Ishihara Illusion: This illusion is created by the way the brain perceives colors. When a color is surrounded by a contrasting color, the brain perceives the color to be different than it actually is.

The flash lag illusion is a visual illusion that is based on the perception of the temporal relationship between a moving object and a flash of light. The illusion occurs when a moving object is followed by a sudden flash of light, and the perceived location of the flash appears to be behind the actual location of the object.

The Café Wall Illusion is a visual illusion that is created by a grid of alternating light and dark horizontal and vertical lines. The lines appear to be bent or tilted, even though they are actually straight.

Discovery of the Bezold Effect Illusion

The effect is named after Wilhelm von Bezold, a German scientist and meteorologist who first described it in 1874.

Wilhelm von Bezold (1837-1907) was a German scientist and meteorologist.

He is best known for his work in the field of color theory, where he was one of the first to study the perception of color and its psychological effects.

He described the phenomenon now known as the Bezold Effect in 1874, in which he observed that changes in color can cause the perception of the surrounding colors to change as well.

He also worked on meteorology, physics, and applied mathematics, being professor of meteorology in Munich University.

References and Resources

Check out our complete list of illusions and this cool All the Same Color illusion that uses the Bezold Effect.

The neon-like color spreading illusion refers to the visual phenomenon where an area of color appears to spread or “bleed” beyond its intended boundaries.

This can be caused by a variety of factors, such as the use of certain color combinations or patterns, the viewing angle, or the lighting conditions.

Table of Contents

• How does the Neon Color Spreading Illusion work?
• Versions of the Neon Color Spreading Illusion
• Illusions like the Neon Color Spreading Illusion
• Discovery of the Neon Color Spreading Illusion
• References and Resources
• Sign up for emails from Mental Bomb

How does the Neon Color Spreading Illusion work?

The neon-like color spreading illusion works by exploiting the way that the human visual system processes color and light.

One of the ways this can happen is through the use of contrasting colors and patterns.

When a high-contrast border is placed around an area of color, the brain may interpret this as the color spreading or “bleeding” beyond the actual boundaries of the object.

Another way the illusion works is by taking advantage of the way that the human eye perceives color in different lighting conditions.

For example, when an object is viewed in bright light, the eye’s color receptors may become fatigued, causing the brain to perceive colors differently than they actually are.

This can cause an area of color to appear to spread or “bleed” beyond its intended boundaries.

Finally, it can also be caused by the use of optical illusions or certain graphic design techniques, like the use of gradients, which can manipulate the perception of color and shape.

In summary, the neon-like color spreading illusion is a visual trick that is created by manipulating the way that the human brain processes color and light.

Versions of the Neon Color Spreading Illusion

The following is an alternate versions of the Neon Color Spreading Illusion:

Illusions like the Neon Color Spreading Illusion

Color illusions work by exploiting the way that the human visual system processes color and light. The human eye is able to detect light in the visible spectrum, which consists of different wavelengths of light that correspond to different colors. The brain then interprets this information to create our perception of color. However, the way the brain perceives color is not always a perfect representation of the physical reality.

There are several factors that can influence the way that the visual system processes color and light, which can lead to the perception of illusions. These factors include:

Contrast: The way that the brain perceives color can be influenced by the surrounding colors and patterns. High-contrast borders around an area of color can cause the brain to interpret the color as spreading or “bleeding” beyond the actual boundaries of the object.

Lighting conditions: The way that the brain perceives color can also be affected by the lighting conditions. For example, when an object is viewed in bright light, the eye’s color receptors may become fatigued, causing the brain to perceive colors differently than they actually are.

Color adaptation: The brain adapts to the colors that we see over time, which can influence the perception of color. For example, if an individual looks at a red object for an extended period of time, the brain will adapt to the red, and when that person looks at a white object, it will appear to have a pinkish hue.

Color constancy: The brain is able to adjust the perception of color based on the context in which it is viewed. This can create illusions where the same color appears to be different depending on the surrounding colors.

Shape use: Some illusions like the Hermann grid illusion or the Cafe Wall illusion, use specific patterns and shapes to manipulate the perception of color and shape.

Some related illusions include the following:

The Neon Color Spreading illusion refers to the visual phenomenon where an area of color appears to spread or “bleed” beyond its intended boundaries.

The Bezold Effect: This illusion is created by placing two or more colors next to each other, and the way they appear to change when they are close to one another.  

The Mach Band Illusion: This illusion is created by the way the brain perceives edges of an object. When an object has a gradient of color, the edges of the object appear to be darker or lighter than they actually are.

The Hermann Grid Illusion: This illusion is created by the way the brain perceives intersections of lines. When the intersections of a grid of lines are viewed, small gray dots appear at the intersections, even though they are not actually there.

The Watercolor Illusion: This illusion is created by the way the brain perceives edges of an object. When an object is surrounded by a colored halo, the object appears to have a different color than it actually does.

The Chevreul Illusion: This illusion is created by the way the brain perceives edges of an object. When the edges of an object are surrounded by a contrasting color, the edges appear to be a different color than they actually are. Chevreul’s illusion is similar to Mach bands, but they work in different ways. Chevreul’s illusion is an effect on the perception of hue, while Mach bands is an effect on the perception of brightness.

The Ishihara Illusion: This illusion is created by the way the brain perceives colors. When a color is surrounded by a contrasting color, the brain perceives the color to be different than it actually is.

The flash lag illusion is a visual illusion that is based on the perception of the temporal relationship between a moving object and a flash of light. The illusion occurs when a moving object is followed by a sudden flash of light, and the perceived location of the flash appears to be behind the actual location of the object.

The Café Wall Illusion is a visual illusion that is created by a grid of alternating light and dark horizontal and vertical lines. The lines appear to be bent or tilted, even though they are actually straight.

Discovery of the Neon Color Spreading Illusion

The neon-like color spreading illusion is not a specific illusion discovered by a single person, but it’s an effect that has been observed and studied by many artists, designers, and scientists throughout history.

The phenomenon of this illusion is not recent, and it has been used in different fields like art, graphic design, and advertising for a long time.

References and Resources

Check out our complete list of illusions.

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