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Stress, whether physiological, biological or psychological, is an organism's response to a stressor, such as an environmental condition or change in life circumstances. [ 1 ] [ 2 ] When stressed by stimuli that alter an organism's environment, multiple systems respond across the body. [ 1 ]
Diving reflex in a human baby. The diving reflex, also known as the diving response and mammalian diving reflex, is a set of physiological responses to immersion that overrides the basic homeostatic reflexes, and is found in all air-breathing vertebrates studied to date.
Emotion stimulus → Physiological Response Pattern → Affective Experience. The theory itself emphasizes how physiological arousal, with the exclusion of emotional behavior, is the determiner of emotional feelings. It also emphasizes that each emotional feeling has a distinct, unique pattern of physiological responses associated with it.
Surprise (pronunciation ⓘ) is a rapid, fleeting, mental and physiological state. It is related to the startle response experienced by animals and humans as the result of an unexpected event. Surprise can have any valence .
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.
These findings can be an effect in part that adrenaline elicits physiological sympathetic responses, including an increased heart rate and knee shaking, which can be attributed to the feeling of fear regardless of the actual level of fear elicited from the video.
Real or perceived threat in the environment elicits stress response in animals, which disrupts internal homeostasis. [2] Physiological changes cause behavioural responses in animals, including: impairment of response inhibition and lack of motivation, [3] as well as changes in social, sexual, [4] [5] aggression [6] and nurture [7] [8] behaviour ...
Physiological psychology is a subdivision of behavioral neuroscience ... For example, the autonomic response, which has sent out the fight-or-flight response, ...