Evidence for the Role of the Primary Motor Cortex Comes

question 11

Multiple Choice

Evidence for the role of the primary motor cortex comes from experiments that show that

• A) activation of individual neurons of the motor cortex matches activation of individual muscles.
• B) activation of individual neurons of the motor cortex matches activation of individual motor units.
• C) activity of some neurons of the motor cortex correlates with the force or direction of a movement.
• D) the number of motor cortex neurons that fire action potentials is linearly related to the force of the muscle contraction.

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