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| Hierarchical
& Parallel Organization |
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| of the
motor systems |
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| • | Top down
organization of the motor pathways-- |
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| opposite that
of sensory paths |
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| • | Subcortical
motor centers--cerebellum & basal |
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| ganglia--access
cortical motor areas via the |
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| thalamus (not
just sensory) |
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| • | Organization
of multiple subcortical and cortical |
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| motor
circuits-reminiscent of parallel sensory |
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| pathways |
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