01:830:310 Lecture Notes - Lecture 23: Lateral Sulcus, Auditory Cortex, Frontal Lobe

• School: Rutgers University
• Department: Psychology
• Course: 01:830:310
• Professor: Professor Mayhew

Document Summary

Altered sexual behavior: impaired social and sexual behavior. Categories of personality change due to frontal lobe lesions. Appears after lesions of the left frontal lobe. Reduced sexual interest, little or no verbal output. Appears after lesions of the right frontal lobe. Coarse language, lack of social graces, increased motor activity. Larger insula (lateral gyrus on the medial side of the anterior temporal lobe-- sometimes insular lobe) Larger planum temporale (posterior region of the temporal lobe, aka wernicke"s area) Doubling of heschl"s gyrus (primary auditory cortex) Goal is to figure out what function is in which hemisphere. Anesthesize one hemisphere and see what the other one does. Left hemisphere is typically dominant for language. Sustaining damage to homotypic regions of different hemispheres produces unique behavioral deficits. A dense fan-like collection of axons that connect the two cerebral hemispheres. The connections typically connect homologous regions of the cortex of each hemisphere. Generally not understood for the first half of the 20th century.