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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.
Critical psychology. Critical psychology is a perspective on psychology that draws extensively on critical theory. Critical psychology challenges mainstream psychology and attempts to apply psychological understandings in more progressive ways, often looking towards social change as a means of preventing and treating psychopathology.