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Home > All Images > 1992 > February > 11 Feb 1992

Images Dated 11th February 1992

Choose from 14 pictures in our Images Dated 11th February 1992 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Brain and vision Featured 11 Feb 1992 Print

Brain and vision

Illustration of visual pathways from the retina of the eye to the brain cortex (seen from below). At the back of each eye (at top), the light-sensitive membrane of the retina transforms visual images into nerve impulses. These images are binocular in that the visual field of each eye overlaps. Each eye has a unique field of view too, which is also analysed by the brain. Light that falls on the right side of each retina (blue) from the left field of view, passes as impulses to the right visual cortex of the brain via the optic nerves at centre, and chiasma (cross-point of these nerves). This is reversed for light that falls on the left side of the retina (coloured red)

© JOHN BAVOSI/SCIENCE PHOTO LIBRARY