KNES 385 Lecture Notes - Lecture 22: Primary Motor Cortex, Prefrontal Cortex, Sensory Cortex
18 Nov 2016
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Document Summary
Primary somesthetic association cortex- primary site for processing somatic sensory fededback. Primary motor cortex- trigger center for descending motor commands. Premotor area- helps with planning movement- has to know body and positioning. Planning movements- the projection system: motor cortex, sma supplementary motor area, involved in planning- for more complex, not necessarily involved in execution n motor response, pm cortex, basal ganglia, cerebellum. Related to the planning and control of movements (how the action is to be carried out) Adds details to general a plan- modifies movements, adapting them to task and environmental constraints. Simple flexions performed with right index fingers uses the primary motor cortex and somatic sensory cortex. Movement sequence performed with wingers on the right hand more complex than just flexion- touching something in sequence: sma, inferior prefrontal cortex, motor cortex, somatic sensory cortex, inferior prefrontal cortex. Movement sequence is imagined with the fingers on the right hand, then sma is activated.
