PSYC 271 Chapter Notes - Chapter 8: Posterior Parietal Cortex, Supplementary Motor Area, Premotor Cortex

• School: Queen's University
• Department: Psychology
• Course: PSYC 271
• Professor: Richard Beninger

Document Summary

Dorsolateral prefrontal association cortex: dorsolateral prefrontal association cortex: Identifying the areas of secondary motor cortex: many other areas of 2 motor cortex proposed: 3 supplementary motor areas, 2 premotor areas, and. Discovered by rizzolatti et al. in early 1990s: found in the ventral premotor cortex, and the inferior posterior parietal cortex, this provides a possible mechanism for social cognition: knowledge of the perception, ideas, and intentions of others. Conventional view of primary motor cortex function: penfield"s motor homunculus: motor cortex is somatotopic (according to a map of the body) electrical stimulation at cortical site activates that particular contralateral muscle. 8. 5 cerebellum and basal ganglia: not a major part of the pathway by which signals descend through the hierarchy, but instead interact with different levels to coordinate and modulate its activities. Cerebellum: 10% of brain mass, 50% of neurons. 3 cell layers (molecular, purkinje, granular) with parallel and climbing fibres.