Neuroscience

Cortical stimulation can improve vision temporarily

Stimulating the visual cortex of the brain for 20 minutes with a mild electrical current can improve vision for about two hours, and those with worse vision see the most improvement, according to a Vanderbilt University study ...

Neuroscience

Zebrafish reveal the ups and downs of vision

Researchers from the Centre for Developmental Neurobiology at King's College London have shed light on how we perceive and recognise specific visual stimuli.

Neuroscience

Optogenetics reveals new insights into circuits of the brain

To date, scientists have largely been in the dark with regard to how individual circuits operate in the highly branched networks of the brain. Mapping these networks is a complicated process, requiring precise measurement ...

Psychology & Psychiatry

Scientists work their magic on 'shrunken finger illusion'

What happens when you rest a chopped ping pong ball on your finger and look at it from above? Experimental psychologists from KU Leuven, Belgium, have shown that our visual system fills in the bottom part of the ball, even ...

Neuroscience

Neuronal feedback could change what we 'see'

Ever see something that isn't really there? Could your mind be playing tricks on you? The "tricks" might be your brain reacting to feedback between neurons in different parts of the visual system, according to a study published ...

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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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