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Hans Selye (1907- 1982) was a Hungarian endocrinologist, first to give a scientific explanation for biological stress. Hans Selye explained his stress model based on physiology and psychobiology as General Adaptation Syndrome (GAS).His model states that an event that threatens an organismâs well-being (a stressor) leads to a three-stage bodily response: Stage 1: Alarm.onclusion. Hans Selye's theory profoundly influenced the scientific study of stress. Stress is a state produced by a change in the environment and the nature of the stressor is variable.
Max Wertheimer (April 15, 1880 â October 12, 1943) was an Austro-Hungarian-born psychologist who was one of the three founders of Gestalt psychology, along with Kurt Koffka and Wolfgang Koehler. KÃ¶hler he is known for his, Book Productive, thinking and for conceiving the phi phenomenon as part of his work In gestalt. psychologyertheimer's work on gestalt psychology with his colleagues at The New School was seen as an opposition and alternative to the behavioral approach to psychology. Wertheimer started the cognitive school of psychology.