human psychology
Refers to the psychological workings, behavior, or mental processes of humans, often in contrast to animal psychology or in discussions of human nature.
Understanding human psychology helps build good relationships.
This novel is full of deep insights into human psychology.
心理学 is the academic discipline of psychology, while 人間心理 refers more broadly to the actual psychological phenomena of humans.
Compound of 人間 (human) and 心理 (psychology, mental state).