Molecular psychology investigates the connection between behavior and the physical structures of the brain. Essentially, both molecular psychology and molecular psychiatry uncover how biology, genetics, and the brain's physical structures impact our behavior.
Emerging from the foundation of behavioral genetics, molecular psychology initially delved into the study of behavior in insects and animal subjects before extending its focus to humans. Behavioral genetics seeks to identify the hereditary factors contributing to various behavioral patterns. This area of research has unveiled how genetics influence psychological conditions and disorders