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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.
In evolutionary psychology, people often speak of the four Fs which are said to be the four basic and most primal drives (motivations or instincts) that animals (including humans) are evolutionarily adapted to have, follow, and achieve: fighting, fleeing, feeding and fucking (a more polite synonym is the word "mating"). [1]
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.
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]
During a flight, they're assessing locations and routes to ensure they still meet the requirements. "[We're listening for] anything that would cause us to not be able to get into that airport ...
The fight-or-flight response involves a general sympathetic nervous system discharge in reaction to a perceived stressor and prepares the body to fight or run from the threat causing the stress. Catecholamine hormones, such as adrenaline or noradrenaline , facilitate immediate physical reactions associated with a preparation for violent ...
What lies behind that is all the stuff that only our key circle knows about, if we let them in. So when I say fight or flight — and it's hard for me, I'm so conditioned in this lifetime to be ...
During this “Fight or flight” /acute stress response, both areas of the conscious brain can struggle to process this information at the same time. Consequently, perceptual distortions can occur (e.g. slow motion/ tunnel vision, disruption of hearing) As a part of this, the processing of auditory information can be stopped completely ...