Which description best fits studying neurons, neurotransmitters, brain regions, and genes to explain behavior?

• A. Biological Psychology
• B. Reductionist approach in physiological psychology
• C. Behavioral Neuroscience
• D. Psychophysiology

Answer: (B)

This fits a reductionist approach in physiological psychology. Reductionism explains complex behavior by breaking it down into its biological parts—neurons, neurotransmitters, brain regions, and genes—and tracing how these components produce and influence behavior. By examining how specific neural circuits and molecular processes drive actions or experiences, this view seeks causal links from biology to behavior, and how changes at those levels can alter outcomes.

The broader field of biological psychology covers how biology underlies behavior, but without committing to strictly explaining behavior solely through its components. Behavioral neuroscience studies the neural bases of behavior as well, but it encompasses a range of approaches beyond just reducing behavior to biological parts. Psychophysiology looks at how physiological processes relate to psychological states, often at system-level or bodily response measures, rather than focusing on genes and molecular mechanisms.