PSYC 3530 Chapter Notes -Primary Motor Cortex, Premotor Cortex, Prefrontal Cortex
11 Nov 2013
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The posterior sensory regions of the cortex specify movement goals and send information to the prefrontal cortex by a number of routes. More direct routes are used to prompt m1 to execute relatively automatic movements. Indirect routes through the temporal cortex are used for movements requiring conscious control. Instructions travel from the prefrontal cortex, which generates plans for movements, to the premotor cortex to the primary motor cortex. The premotor cortex contain a repertoire of movements a lexicon that allows it to recognize the movement of others and select similar or different actions. The lexicon of the primary motor cortex consists of movements that are somewhat more elementary than those of the premotor cortex. Identifying the motor cortex with the use of electrical stimulation. In the 1950s, wilder penfield used brief pulses of electrical stimulation to map the cortices of conscious human patients who were about to undergo neurosurgery. The part of the body that is to be moved.
