PSYC 2410 Study Guide - Final Guide: Frontal Lobe, Reticular Formation, Renshaw Cell
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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 of the locus of sensorimotor control. From top to bottom: association cortex, secondary motor cortex, primary motor cortex, brain stem motor nuclei, spinal motor circuits (muscle feedback) All le(cid:448)els proje(cid:272)t do(cid:449)(cid:374), a(cid:374)d all le(cid:448)els re(cid:272)ei(cid:448)e feed(cid:271)a(cid:272)k. it"s like a (cid:272)o(cid:373)pa(cid:374)(cid:455) (cid:449)ith a (cid:272)o(cid:373)pa(cid:374)(cid:455) preside(cid:374)t (association cortex) at the top and regular workers (muscles) at the bottom. The reason this is done is to free up room for the higher levels to preform different tasks. The higher up, the more complex the task, so easier things are sent down. Sensory feedback: sensory organs receive their information and feed this information into sensorimotor circuits. The only responses not influenced by sensory feedback are ballistic movements. Ballistic movements: brief, all-or-none, high speed movements (swatting a fly that lands on you).
