CHAPTER 8 SENSORIMOTOR SYSTEM

CHAPTER 8 - A GENERAL MODEL OF MOTOR CONTROL PLANS FOR MOVEMENT IMPORTANCE OF POSTERIOR PARIETAL ASSOCIATION CORTEX 1 WHERE IS THE STIMULUS 2 WHERE

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PSY 223 SPRING 2012 CHAPTER 8  SENSORIMOTOR  SYSTEM
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HOW TO MOVE 200 BONES IN A  MEANINGFUL PATTERN
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A MUSCLE SYNAPSE q  AXON FROM MOTOR  NEURON IN SPINAL CORD q  NEUROTRANSMITTER IS  ACETYLCHOLINE q  FAST AND SLOW FIBERS q  SYNERGISTIC  MUSCLES q  ANTAGONISTIC MUSCLES q  CHOLINERGIC RECEPTORS:   ALZHEIMER’S, NICOTINE  RESPONSE
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HOW DO WE ACTUALLY MOVE? MUSCLE CONTRACTION MYOSIN PADDLES PAST  ACTIN MUSCLES SHORTEN
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ANTAGONISTIC MUSCLES WORK  TOGETHER
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A SIMPLE SPINAL CORD REFLEX
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MUSCLE SPINDLE FEEDBACK  CIRCUIT
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WHEN THE DOCTOR TAPS YOUR  KNEE SPINDLES IN THIGH  MUSCLES STRETCHED BURST OF FIRING BURST OF FIRING IN THIGH  MUSCLE MOTOR NEURONS
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WHEN ARNOLD GETS FRIENDLY
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ARNOLD INCREASES FIRING IN  BICEPS SPINDLE
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PRIMARY MOTOR CORTEX 1.  WILDER PENFIELD, FROM  1930s 2.  USED VERY BRIEF PULSES 3.  LONGER PULSES  PRODUCE MORE COMPLEX  MOTIONS 4.  MOTOR HOMUNCULUS SOMATOSENSORY GYRUS
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Unformatted text preview: A GENERAL MODEL OF MOTOR CONTROL PLANS FOR MOVEMENT IMPORTANCE OF POSTERIOR PARIETAL ASSOCIATION CORTEX 1. WHERE IS THE STIMULUS? 2. WHERE ARE MY BODY PARTS? 3. PATTERN OF MOTOR ACTIVITY NEEDED? 4. UNCONSCIOUS PROCESSING A NEWLY-LEARNED SEQUENCE OF FINGER MOVEMENTS CEREBELLUM: 10% MASS OF BRAIN, BUT HALF OF BRAIN NEURONS CONTROLS FORCE, DIRECTION, VELOCITY AND AMPLITUDE MOTOR LEARNING A WELL-PRACTICED SEQUENCE OF MOTOR ACTIVITIES WELL-LEARNED THINGS MAY BE PERFORMED AT UNCONSCIOUS LEVEL AND THEY SEEM EASY BASAL GANGLIA q IT TAKES A LITTLE DOPAMINE TO FUNCTION q COGNITIVE FEEDBACK LOOPS TO CORTEX q LEARNING TO GET REWARD FROM BEHAVIOR (NUCLEUS ACCUMBENS) q CONTROL TREMOR IN THALAMUS q MAKE MOVEMENT POSSIBLE...
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This note was uploaded on 04/02/2012 for the course PSY 223 taught by Professor Charleskutscher during the Spring '12 term at Syracuse.

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CHAPTER 8 - A GENERAL MODEL OF MOTOR CONTROL PLANS FOR MOVEMENT IMPORTANCE OF POSTERIOR PARIETAL ASSOCIATION CORTEX 1 WHERE IS THE STIMULUS 2 WHERE

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