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The visual areas

Different areas of the gray matter are responsible for different neural functions, such as vision, audition, somatosensory, motor, language, etc. The various functional cortical areas can communicate with each other through the connections formed by the white matter underneath the gray matter.

Brodmann area 17 is the primary visual cortex, also known as the striate cortex or V1, as shown in here:

../figures/v1.gif

 
Figure: The primary visual cortex V1

Some other higher visual areas, called extrastriate areas, including V2, V3, V4, V5 (also called medial-temporal MT) are shown here:

../figures/visualcortex2.gif

 
Figure: Extrastriate cortical areas

../figures/macaquebrain.gif

 
Figure: Visual areas of Macaque monkey

Note that all there visual areas are just patches of various sizes and locations on the cortex, and they are all connected as shown in this unfolded and flattened visual cortex:

../figures/visualcortex.gif

 
Figure: Various areas in the visual cortex


next up previous
Next: Two pathways Up: The Visual Cortex Previous: Cortical divisions
Ruye Wang
1999-08-31