Search results
Results From The WOW.Com Content Network
The fight-or-flight or the fight-flight-freeze-or-fawn [1] (also called hyperarousal or the acute stress response) is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival. [2] It was first described by Walter Bradford Cannon in 1915.
If the amygdala perceives a match to the stimulus, i.e., if the record of experiences in the hippocampus tells the amygdala that it is a fight, flight or freeze situation, then the amygdala triggers the HPA (hypothalamic–pituitary–adrenal) axis and "hijacks" or overtakes rational brain function. [5]
The fight-or-flight response is a biological response of humans and other animals to acute stressors. Fight or Flight may also refer to: Fight or Flight, a documentary film; Fight or Flight (2025 film), a British action film; Fight or Flight, a 1996 book documenting battles from the soldier's perspective by military historian Geoffrey Regan
The fight or flight response to emergency or stress involves mydriasis, increased heart rate and force contraction, vasoconstriction, bronchodilation, glycogenolysis, gluconeogenesis, lipolysis, sweating, decreased motility of the digestive system, secretion of the epinephrine and cortisol from the adrenal medulla, and relaxation of the bladder ...
Fight or flight In 1915, he coined the term fight or flight to describe an animal's response to threats in Bodily Changes in Pain, Hunger, Fear and Rage: An Account of Recent Researches into the Function of Emotional Excitement. [20]
Fear is an unpleasant emotion that arises in response to perceived dangers or threats. Fear causes physiological and psychological changes. It may produce behavioral reactions such as mounting an aggressive response or fleeing the threat, commonly known as the fight-or-flight response. Extreme cases of fear can trigger an immobilized freeze ...
[10] [14] Animals can respond with physiological responses, [10] behavioural responses, psychological responses, [9] or physical responses (fight-or-flight). [2] Canon argued that there are two possible choices that an organism may choose when stress is encountered: fight responses or flight responses. [2]
This physiological stress response involves high levels of sympathetic nervous system activation, often referred to as the "fight or flight" response. The response Archived 2012-10-10 at the Wayback Machine involves pupil dilation, release of endorphins , increased heart and respiration rates, cessation of digestive processes, secretion of ...