Certified Prevention Professional (CPP) Practice Exam

Which neurotransmitter is primarily associated with movement and motivation regulation?

1. Serotonin

2. Dopamine

3. Norepinephrine

4. Acetylcholine

The correct answer is: Dopamine

Dopamine plays a critical role in both movement and regulation of motivation within the brain. It is a neurotransmitter that is central to the brain's reward and pleasure centers. Dopamine influences several key functions, including the coordination of voluntary movements and the drive to pursue rewarding experiences. This neurotransmitter is heavily involved in the brain's reward system, reinforcing behaviors that are perceived as pleasurable and motivating individuals to participate in those behaviors again. Conditions such as Parkinson's disease, characterized by motor control issues, illustrate the neuroscience behind dopamine's role in movement. In this condition, dopaminergic neurons deteriorate, leading to tremors and rigidity. Moreover, the association of dopamine with motivation can be observed in its impact on behavior and decision-making processes; it drives individuals to engage in activities that are rewarding or desirable, highlighting its dual role in both movement and motivational regulation.