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The biological approach to psychology, also known as neuropsychology, is one of many approaches used to explain human mental processes and behavior. Neuropsychologists are psychologists that examine mental processes and behavior using a biological approach.
Quick Review: 1  Psychology is the scientific study of human thought, feelings and behavior. 2  The five major perspectives in psychology are biological, psychodynamic, behavioral, cognitive and humanistic. 3  Each perspective provides its own view on the roots of why you do what you do.