A theory formulated by Walter Cannon in 1929 to depict the fight-or-flight response in animals. The theory assumes that when an animal perceives a stimulus of threat it experiences independent, simultaneous reactions, specifically the psychological processes in the brain that makes the animal aware of the emotion, and the bodily processes triggered by the autonomic nervous system that bring about physiological changes (which prime the animal to respond – either to fight or flee – in unsafe situation).
- Cannon’s theory
- Hypothalamic theory
Compare: Body Reaction theory
See also: fight-or-flight response