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

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

Broken Mirrors: A Theory of Autism
Studies of the mirror neuron system may reveal clues to the causes of autism and help researchers develop new ways to diagnose and treat the disorder.

Hearing Colors, Tasting Shapes
People with synesthesia--whose senses blend together--are providing valuable clues to understanding the organization and functions of the brain

Blind Spots
Investigating how the visual system compensates for gaps in perception is helping researchers to elucidate how the brain processes images

Perceiving Shape from Shading
Shading produces a compelling perception of three-dimensional shape. One way the brain simplifies the task of interpreting shading is by assuming a single light source

The Perception of Apparent Motion
When the motion of an intermittently seen object is ambiguous, the visual system resolves confusion by applying some tricks that reflect a built-in knowledge of properties of the physical world