... are produced in response to seasonal variations in sunlight or temperature). But animals have also evolved to adjust their behaviour to environmental variability by reacting to behavioural consequences, and it is this behavioural plasticity that is of primary interest to psychologists. The focus of psychologists on behavioural plasticity can be traced to the remarkable flexibility of human behaviour and the attempt to model that behaviour in other organisms. However, psychologists differ among themselves in how best to model flexible behaviour. Psychoanalytic approach Humanistic approach Humanistic psychology is a psychological perspective that emphasizes the study of the whole person. Humanistic psychologists look at human behaviour not only through the eyes of the observer, but through the eyes of the person doing the behaving. Humanistic psychologists believe that an individual's behaviour is connected to his inner feelings and self-image. Unlike the behaviourists, humanistic psychologists believe that humans aren't solely the product of their environment. Rather humanistic ...

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