Psychology & Psychiatry

Art, science and the paradoxes of perception

Perception is utterly baffling. We can precisely describe the biological structure of eyes and brains. We can measure the electrochemical impulses and electrical fields generated by neurons. But reason fails us when we attempt ...

Neuroscience

How the brain 'approximates' without actually counting

From the time of early infancy, humans are endowed with the capacity to approximate the number of objects in their visual field, an ability that continues throughout life and may underlie the development of more complex mathematical ...

Neuroscience

Deciphering how the brain encodes color and shape

There are hundreds of thousands of distinct colors and shapes that a person can distinguish visually, but how does the brain process all of this information? Scientists previously believed that the visual system initially ...

Neuroscience

Breakthrough in understanding how human eyes process 3-D motion

Scientists at the University of York have revealed that there are two separate 'pathways' for seeing 3-D motion in the human brain, which allow people to perform a wide range of tasks such as catching a ball or avoiding moving ...

Neuroscience

A new window into macaque brain connections

Researchers can now see how the two sides of the living brain mirror each other thanks to a new combination-imaging technique. The method dubbed "opto-OISI" takes advantage of rapidly developing high-resolution optical technologies ...

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Visual system

The visual system is the part of the central nervous system which enables organisms to see. It interprets the information from visible light to build a representation of the world surrounding the body. The visual system accomplishes a number of complex tasks, including the reception of light, and the formation of monocular representations; the construction of a binocular perception from a pair of two dimensional projections; the identification and categorization of visual objects; assessing distances to and between objects; and guiding body movements to visual objects. The psychological manifestation of visual information is known as visual perception.

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