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 ...

Neuroscience

Neuronal calculations consider expectations

Our visual environment is incredibly complex. The smallest of spaces contain innumerable colours, structures and contrasts. Despite this we are able to identify objects and movements with high accuracy. Even the fruit fly, ...

Neuroscience

Scientists uncover a new layer in visual brain imaging

Neuroscientists have gained new insight into how the brain perceives the world by using high resolution high field MRI to study activity in different layers of the visual cortex in great detail.

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