In the context of AP Psychology, which of the following best defines the motor cortex?

• A. A part of the temporal lobe involved in processing auditory information
• B. A structure in the occipital lobe that interprets visual stimuli
• C. A region of the parietal lobe that processes sensory input from the skin
• D. A region of the frontal lobe responsible for planning, controlling, and executing voluntary movements

Answer: (D)

Verified step by step guidance

1. Identify the location of the motor cortex in the brain. It is situated in the frontal lobe, which is important for higher cognitive functions and voluntary movement control.
2. Understand the primary function of the motor cortex: it is responsible for planning, controlling, and executing voluntary movements, meaning it sends signals to muscles to produce movement.
3. Differentiate the motor cortex from other brain regions mentioned: the temporal lobe processes auditory information, the occipital lobe interprets visual stimuli, and the parietal lobe processes sensory input from the skin.
4. Recognize that the motor cortex is distinct because it directly controls motor functions, unlike sensory or perceptual areas that process incoming information.
5. Conclude that the best definition of the motor cortex is 'a region of the frontal lobe responsible for planning, controlling, and executing voluntary movements' based on its location and function.