bio psych lecture 17 notes (4 pages)

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bio psych lecture 17 notes



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bio psych lecture 17 notes

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sensory motor connections and interactions


Pages:
4
School:
University of Colorado at Boulder
Course:
Psyc 2012 - Biological Psychology 1

Unformatted text preview:

3 17 15 Lecture 17 Motor Behavior CNS Control of Movement Goal to determine how our nervous system produces voluntary movement Sensorimotor System the parts of the brain spinal cord and peripheral nerves that produce movement and provide feedback about movement o Movement is a major characteristic of animals o Hierarchical Control of Movement Movement starts with a goal then it is operationalize into a pattern of movements for achieving that goal The pattern of coordinated movements is converted into activation of relevant muscles sensory information provides feedback about the movement Errors have to be detected and corrected CEO Managers Workers feedback survey o Main Structures Involved in Neural Control of Movement Frontal Cortex initiates and plans movement Brainstem relays commands to the spinal cord Spinal Cord transmits signals to lower motor neurons Muscles carry out movements Basal Ganglia regulates the force of movements Cerebellum detects and corrects errors in movement Somatosensory System provides sensory feedback about movement o The Frontal Cortex and Initiation of Movement Prefrontal cortex initiates movement goals PLANS Very important with initiating complex behaviors goals and ideas o It also decides if an action is appropriate impulse control Does not specify the precise pattern of movements to be made the premotor cortex does this Neurons in the prefrontal cortex sends their axons to the premotor cortex Lesion or Damage to Prefrontal Cortex o Impulsive or inappropriate behaviors Premotor cortex organizes movement patterns SEQUENCES Produces complex movement patterns or sequences necessary to accomplish the task Neurons in the premotor cortex send their axon messages to the motor cortex Lesion or damage to the premotor cortex o Affect the ability to put together complex movements is interfered with Motor cortex actually sends out the commands for producing specific movements through different patterns of muscle activation EXECUTES The neurons of



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