STEP 1: STRATEGIES FOR THE UPCOMING MOVEMENT MUST BE DEVISED STEP 2: TACTICS FOR THE UPCOMING MOVEMENT MUST BE DECIDED UPON STEP 3: EXECUTION OF THE MOVEMENT FUNCTION STRUCTURE High Goal & strategy of movement Prefrontal & posterior (what to do) parietal cortex, basal ganglia Middle Tactics of movement Motor Cortex & sequence of muscle contractions to cerebellum produce movement (how to do it) Low Execution of movement Spinal cord & brain activation of specific muscles (do it) stem THE POSTERIOR PARIETAL AND PREFRONTAL CORTEX TAKE THE FIRST STEP IN PLANNING A MOVEMENT = step 1 strategies THESE TWO AREAS, TOGETHER, FORM THE HIGHEST LEVEL OF DECISION MAKING FOR A MOVEMENT SHOULD I DO, WHAT IS LIKELY TO HAPPEN” “WHAT NEXT: Where is the movement decision sent? posterior parietal and prefrontal cortex send the decision to supplemental motor area (SMA) and premotor cortex SMA & AREA START THE JOB OF PLANNING HOW TO DO THE MOVEMENT DECIDED UPON = step 2 tactics if the subject is to overhand, one group of neurons in SMA fire, until the command to go but
STEP 1: STRATEGIES FOR THE UPCOMING MOVEMENT MUST BE DEVISED STEP 2: TACTICS FOR THE UPCOMING MOVEMENT MUST BE DECIDED UPON STEP 3: EXECUTION OF THE MOVEMENT FUNCTION STRUCTURE High Goal & strategy of movement (what to do) Prefrontal & posterior parietal cortex, basal ganglia Middle Tactics of movement sequence of muscle contractions to produce movement (how to do it) Motor Cortex & cerebellum Low Execution of movement activation of specific muscles (do it) Spinal cord & brain stem THE POSTERIOR PARIETAL AND PREFRONTAL CORTEX TAKE THE FIRST STEP IN PLANNING A MOVEMENT = step 1 strategies THESE TWO AREAS, TOGETHER, FORM THE HIGHEST LEVEL OF DECISION MAKING FOR A MOVEMENT “WHAT SHOULD I DO, WHAT IS LIKELY TO HAPPEN” NEXT: Where is the movement decision sent? posterior parietal and prefrontal cortex send the decision to supplemental motor area (SMA) and premotor cortex SMA & AREA START THE JOB OF PLANNING HOW TO DO THE MOVEMENT DECIDED UPON = step 2 tactics if the subject is to overhand, one group of neurons in SMA fire, until the command to go but
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