Question

What aspect of movement are the cortical areas rostral (anterior) to M1 involved in?

a) Planning and sequencing
b) Execution of movements
c) Sensory feedback
d) Motor learning

Answer 1

The premotor cortex and the supplemental motor area, rostral to M1, are involved in the planning and sequencing of movements, preparing the motor system for action.

Step-by-step explanation:

The cortical areas rostral (anterior) to the primary motor cortex (M1), which include the premotor cortex and the supplemental motor area, are principally involved in planning and sequencing of movements. These areas do not execute movements directly but are critical in preparing the motor system for action. The premotor cortex controls movements of the core muscles for posture, while the supplemental motor area is hypothesized to plan and coordinate movement and manage sequential movements based on learned experiences. Neurons in these regions become especially active just before the initiation of movement, suggesting their pivotal role in the preparatory phase of motion.