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16 Cards in this Set
- Front
- Back
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motor sequence
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programmed by brain, produced as a unit
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motor sequence events
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cortex sends general program to stem/cord,cord coordinates specifics
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prefrontal cortex
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plans individual movements
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premotor cortex
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organizes movement sequences, visual input
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motor cortex
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executes actions
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supplemental motor
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executes pre planned movements, does not need visual input
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cerebellum
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coordinates + compares
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basal ganglia
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refines selection of movements
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somatosensory cortex
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sensory info from cord, projects to higher centers
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primary motor cortex
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simple movements (can be chained together by premotor + supplemental motor)
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primary motor cortex input
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premotor, supplemental motor, somatosensory, posterior parietal, prefrontal
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primary motor cortex output
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spinal motor neurons, brain stem, cerebellum, basal ganglia
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lateral corticospinal tract
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coordinates fine movements
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M1 cells
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from primary motor cortex, have preferred directionality, population activity important
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basal ganglia
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4 subcortical nuclei, control of movement, inner feedback loop with cortex
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basal ganglia theories of function
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facilitates + inhibits movements, comparator, initiates automatic sequences
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