
Shadows and Illusions
The way we detect shape and depth from shading reveals some primeval rules that govern how we see the world
Vilayanur S. Ramachandran is a professor and director of the Center for Brain and Cognition at the University of California, San Diego. Ramachandran's accolades include receiving the Henry Dale Prize of the Royal Institution of Great Britain in London, giving the 2003 Reith Lectures for the BBC and participating in the 2012 Gifford Lectures in Glasgow.

Shadows and Illusions
The way we detect shape and depth from shading reveals some primeval rules that govern how we see the world

Reflections on the Mind
Experiments with a simple mirror setup can reveal much about the workings of the brain

The Ghost Hand Illusion
Spooky fun with afterimages

Reading between the Lines: How We See Hidden Objects
When an object is partially hidden, the brain deftly reconstructs it as a visual whole

Extreme Function: Why Our Brains Respond So Intensely to Exaggerated Characteristics
How quirks of perception drive the evolution of species

Hey, Is That Me over There?
And other real-life tales from the bizarre realm of out-of-body experience

Aristotle's Error
Using aftereffects to probe visual function reveals how the eye and brain handle colors and contours

A Moving Experience: Illusions That Trick the Brain
How the eyes can see movement where it does not exist

Illusions: The Mona Lisa and Abraham Lincoln
What do the famous portrait and the former U.S. president have in common?

Two Eyes, Two Views: Your Brain and Depth Perception
Insights into the nuances of depth perception provided by our two eyes' slightly different views of the world

Seeing in Stereo: Illusions of Depth
Binocular vision gives us depth perception—and enables us to play some tricks

It's All Done with Mirrors
Reflections on the familiar and yet deeply enigmatic nature of the looking glass

A Moving Experience
How the eyes can see movement where it does not exist

The Quirks of Constancy
Even when we consciously know two lines are the same length, why can't we help seeing them as different?

How Blind Are We?
We have eyes, yet we do not see

The Reality of Illusory Contours
How can an imaginary square look more real than a box with actual lines?

The Neurology of Aesthetics
How visual-processing systems shape our feelings about what we see

Right Side Up
Studies of perception show the importance of being upright

Hidden in Plain Sight
Camouflage in fish and other animals provides insights into visual perception

Transparently Obvious
How the brain sees through the perceptual hurdles of tinted glass, shadows and all things transparent

Paradoxical Perceptions
How does the brain sort out contradictory images?

Cracking the da Vinci Code
What do the Mona Lisa and Abraham Lincoln have in common?

The Phantom Hand
The feeling of being touched on a fake hand illuminates how the brain makes assumptions about the world

Touching Illusions
Startling deceptions demonstrate how tactile information is processed in the brain