Parietal lobe. Symptoms include inability to write or identify objects by touching them, challenges with math, numbness, loss of sensation, and lack of hand- eye coordination. Temporal lobe.

This area, also known as Broadman area 17 or V1, is the occipital lobe's primary visual cortex. Secondary visual cortex. The secondary visual cortex is also designated V2, V3, V4, V5, or Brodmann ...