PSYC 2410 Chapter Notes - Chapter 8.1-8.4: Posterior Parietal Cortex, Prefrontal Cortex, Frontal Lobe
19 Apr 2012
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8. 1 three principles of sensorimotor function: the sensorimotor system is hierarchically organized, motor output is guided by sensory input, learning can change the nature and the locus of sensorimotor control, sensorimotor system is hierarchically organized. Hierarchical organization main advantage is that the higher levels can perform more complex functions. Sensorimotor system and large, efficient companies are parallel hierarchical systems signals flow between levels over multiple paths: ex. Sensory system information flows up; sensorimotor system information flows down: motor output is guided by sensory input. Infection had effected the somatosensory nerves in g. o. "s arms. He had difficulties performing intricate responses such as doing up buttons, or picking up coins, also inability to adjust his motor output in the light of unanticipated external disturbances. Greatest problem was inability to maintain a constant level of muscle contraction. G. o. would have to constantly make a visual check on his progress when performing tasks, however, sometimes this was not enough.
