PSYC51H3 Lecture Notes - Lecture 6: Extrastriate Cortex, Extrastriate Body Area, Fusiform Gyrus
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Patient ck has spared face perception, but damaged object perception. The composite effect shows the importance of holistic processing. Because of our rich social network, we have to be able to efficiently determine the identities, actions, emotions, and intentions of others. Much of this information is available through processing the face, and lots of attention has been given to face processing. But this information is available from the body as well, and recently researchers have become interested in body perception. Faces and bodies share similarities: convey socially relevant information, become highly familiar with repeated exposure over lifespan, similar in shape across individuals, and are attention grabbing. I(cid:859)ll re(cid:448)ie(cid:449) se(cid:448)eral li(cid:374)es of evidence suggesting that the brain has dedicated regions devoted to processing bodies: monkey electrophysiology, monkey fmri, human fmri, human electrophysiology, human tms studies. First demonstration of single neurons in the temporal lobes of macaques sensitive to processing body parts (i. e. specifically to hands): gross et al. (1969)
