PSYC 2410 Study Guide - Acetylcholine, Triceps Brachii Muscle, Posterior Grey Column
6 Apr 2013
School
Department
Course
Professor
Document Summary
The sensorimotor system is hierarchically organized: main advantage of hierarchical organization is that higher levels of the hierarchy are left free to perform more complex functions. Motor output is guided by sensory input. Sensory feedback plays an important role in directing the continuation of the responses that produced it. Learning changes the nature and locus of sensorimotor control. In initial stages of motor learning, each individual response is performed under conscious control, then after practice individual responses become organized into continuous integrated sequences of action that flow smoothly and are adjusted by sensory feedback without conscious regulation. A general model of sensorimotor system function. Starts at association cortex, motor signals descend to the skeletal muscles that perform the movements. Have trouble performing when requested to, but can do it naturally. Associated with large lesions of the right posterior parietal lobe.
