Motor Control

 

Motor Learning

• HOW - need memories of

1) how it felt to make a particular movement

2) result that was acheived "when we hit it like that"

• Affectors

• Once learned:

Motor Programs:

feedback is normally used

• most movements depend on sensory feedback

 

Communication betw Sensory and Motor Systems - Two ways

Vision

Hearing/balance

Proprioceptive feedback:

Thus - Sensory Info - fed back to Motor Command Centers

Compares what is happening to what should have happened

--> can adjust

- the better the movements - the fewer the corrections

Complexity: Successful golf swing

 

The Spinal Cord

Reflexes

1) Patellar Tendon

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2) Withdrawel - painful

• receptors - pain to spinal cord

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Motor Functional Anatomy - Handout

I. Motor Programs

Motor Cortex - OVERHEAD

• superior strips of cortex

Orchestrated by:

A. Cerebellum

Medial

B. Basal ganglia

Putamen

II. Planning

1) Association Cortex

2) Limbic System

3) Caudate

4) Lateral Cerebellum

III. Execution

• info to spinal motor neurons

decussation - pons - pyramidal

extra-pyramidal

• also ascending (sensory) input

 

• Recruitment - SOs/FGs