PSYC 2410 Lecture 9: NOTES-Chapter 8, Lecture 9-Sensorimotor System
13 May 2016
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Document Summary
Three principles of sensorimotor functions: sensorimotor system is hierarchically organized, motor output is guided by sensory input, learning can change the nature and the locus of sensorimotor control. Sensorimotor systems: functional segregation, parallel processing, feedback circuits, hierarchical organization. Cortical processing: primary sensory cortex, secondary sensory cortex, association cortex. Motor output is guided by sensory input: Sensory feedback (except ballistic movements)= eyes, the organs of balance, and the receptors in skin, muscle, and joints all monitor the body"s response, and they feed their info back into sensorimotor circuits. Ballistic movements: brief, all-or-none, high speed movements. Movement that goes into swatting a fly, start motion but don"t have feedback to stop slapping = slapping someone in the face if the fly was on their face to begin with. Inputs: visual, auditory and somatosensory stimuli + dorsolateral association cortex. Outputs: mostly dorsolateral prefrontal association cortex. Localization of body parts and external objects in space.
