EDKP 447 Lecture Notes - Lecture 2: A Number, Mental Chronometry, Stimulus Modality
21 Dec 2017
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Hierarchical levels - different levels of command within cortex. But can also activate local motor system to move & Get water or to run away from fear. Muscles for evolving movement: global commands = higher level cerebral cortex, specific commands = lower level *fine-tuning spinal cord send motor programs for muscles to. *commands become narrower & more specific when lower levels. Guides (cid:862)fill (cid:373)(cid:455) needs(cid:863) (cid:862)take this route(cid:863) (cid:862)do it this wa(cid:455) no(cid:449)(cid:863) Can have direct influence on association/projection/spinal system: highest level include = frontal cortex/parietal cortex/temporal lobe. Act as association system that indicates what to do. Form memories: middle level include = sensory motor cortex/cerebellum/basal ganglia/brainstem. Act as projection system that indicates how to do it now. Comparator of efferent copy motor plan to feedback from muscles proprioceptors. Learning: lowest level include = spinal cord. Act as spinal system that indicates to execute & do = send to muscular system that contracts.
