20 October, 2012

Penn researchers create a universal map of vision in the human brain


New technology confirms 'timeless' diagram drafted by WW1 neurologist


Senior author Geoffrey Aguirre, MD, PhD, assistant professor of Neurology said:
By measuring brain anatomy and applying an algorithm, we can now accurately predict how the visual world for an individual should be arranged on the surface of the brain. We are already using this advance to study how vision loss changes the organization of the brain.
The modern map of the representation of vision in the brain is compared to the 1918 original. (Credit: Image courtesy of University of Pennsylvania School of Medicine)

The researchers combined traditional fMRI measures of brain activity from 25 people with normal vision. They then identified a precise statistical relationship between the structure of the folds of the brain and the representation of the visual world.

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