The Cells in the Primary Motor Cortex Are Most Active

Multiple Choice

The cells in the primary motor cortex are most active ______ and receive sensory information in order to ______.

A) in preparation and planning for movements; know where to start the movements
B) during involuntary, or reflexive, movements; start the movement
C) at or after the end of movements; stop the movement
D) during voluntary movements; refine movements as they are performed