Which statement best describes the central idea of a motor program within the brain?

• A. Movements Cannot Be Planned
• B. The Brain Stores a Representation of the Movement to Be Performed
• C. Movement Is Completely Determined by Practice
• D. Movements Are Planned by the Environment

Answer: (B)

The idea being tested is that the brain maintains an internal plan—a stored representation of how a movement should unfold. This motor program encodes the sequence of muscle activations, the timing between actions, and the force required, so when you initiate the movement, the brain can retrieve that plan and execute it smoothly. Practicing a task helps shape and refine this stored representation, but the movement isn’t created from scratch each time or dictated solely by the environment. The other statements miss this core point: movements aren’t unplanned, they aren’t determined entirely by practice, and they aren’t planned by the environment alone.