Brain and Behavior: McGuthry Lecture 10

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Flashcards covering key vocabulary related to movement control and mirror neurons from the lecture.

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13 Terms

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Central pattern generators

Generate rhythmic patterns of motor output.

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Acetylcholine (ACh)

Causes somatic (skeletal) muscles to contract.

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Curare

Paralyzes; it is a high-affinity ACh antagonist.

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Primary motor cortex

Controls output to the muscles.

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Corticospinal tracts

Paths from the cortex to the spinal cord.

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Primary Motor Cortex

Contralateral control of motor movement.

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Posterior Parietal Cortex

Plans movement; and keeps track of body relative to world (space).

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Primary Somatosensory

Integrates touch with movement.

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Prefrontal Cortex

Responds to sensory input ("go"); calculates outcomes.

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Premotor Cortex

Active during preparation; sights target & plans direction for reach.

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Supplementary Motor Cortex

Organizes rapid sequences of movement (both sides of body).

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Mirror Neurons

Are active during both preparation of a movement and while watching someone else perform a movement; may be important for social behaviors- understanding, identifying and imitating other people

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Mirror Neurons

Occur in motor cortex and in brain areas that process sensation and social emotions.