Final answer:
Motivation is heavily influenced by the reward pathway in the brain, which releases dopamine and provides a sense of pleasure and reinforcement.
Step-by-step explanation:
Motivation is heavily influenced by the reward pathway in the brain. The reward pathway is part of the brain's pleasure center and releases dopamine, a neurotransmitter that provides a sense of pleasure and reinforces behavior. When a person's behavior is rewarded, it increases their motivation to engage in that behavior again.