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Auditory exclusion is a form of temporary loss of hearing occurring under high stress. As such it is related to tunnel vision and "the slowing of time in the mind". [1] [2] [3] Auditory exclusion happens as a result of the physiological effects of the acute stress response, specifically an increased heart rate.
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.
The sympathetic branch of the autonomic nervous system gives rise to a specific set of physiological responses to physical or psychological stress. The body's response to stress is also termed a "fight or flight" response, and it is characterised by an increase in blood flow to the skeletal muscles, heart, and brain, a rise in heart rate and ...
Your heart rate is the number of times your heart pump beats per minute to do its job, which is to circulate blood (to provide oxygen and nutrients) to the rest of the body, says Puja Mehta, M.D ...
The activity of the sympathetic nervous system drives what is called the "fight or flight" response. [4] The fight or flight response to emergency or stress involves increased heart rate and force contraction, vasoconstriction, bronchodilation, sweating, and secretion of the epinephrine and cortisol from the adrenal medulla, among numerous ...
In patients with stable coronary heart disease (CHD) up to 70% [1] Mental stress-induced myocardial ischemia (MSIMI) is a medical condition in which acute psychological stress can trigger a transient myocardial ischemia , which is a state of reduced blood flow to the heart muscle , often without the presence of significant coronary artery ...
The majority of people with vasovagal syncope have a mixed response somewhere between these two ends of the spectrum. One account for these physiological responses is the Bezold-Jarisch reflex. Vasovagal syncope may be part of an evolved response, specifically, the fight-or-flight response. [16] [17]
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 ...