general adaptation syndrome Flashcards
stress
1
Q
what is stage 1
A
alarm reaction
2
Q
two substage of alarm reaction
A
1st substage: shock
2nd substage: countershock
3
Q
what is alarm reaction
A
immediate reaction that occurs when person encounters/ made aware of stressor. mobilises body
4
Q
shock
A
bodys biological reactions fall below normal functioning.
- body acts as though injured
- temp and BP drop temporarily e.g fainting, low heart rate
- ability to deal with stressor = reduced
5
Q
countershock
A
-symp NS responses occur
- release of stress hormone including adrenaline and nonadrenaline by adrenal glands
- cortisol secreted by HPA
6
Q
second stage of GAS
A
resistance
7
Q
resistance
A
- adaptive stage = response to persistent stressor
- high levels of physiological arousal as body adjusts to increased hormone levels
- symp NS= decreased in intensity, body experience a rise in its resis. to the stressor
- high levels of cortisol = begins to suppress immune system e.g getting sick (minor) –> indiv. focusses most of energy ons tressor at hand = ignoring other life commitments e.g socialising/work
8
Q
last stage of GAS
A
exhaustion
9
Q
exhaustion
A
- cortisol depleted and body’s ability to respond to stressor = reduced
- unable to maintain heightened arousal = fatigue, sickness and an increased susceptibility to mental health disorders e.g anxiety and depression as well as more pysical illnesses (severe)
10
Q
strengths of GAS
A
- model suggest a predictable pattern of responses that can easily be tested in a laboratory
- identifies various biological processes that occur as part of the stress response, e.g hormone secretion and immune system depletion
- one of the 1st theories to suggest that stress can weaken the body’s resistance to illness
- there is research and evidence to suggest that the three stages of GAS exists = body’s non- specific response to a stressor = physiological reality.
11
Q
limitations of GAS
A
- humans and rats are physiologically different for e.g human stress responses tend to be more complex and variable t/f GAS model cannot be easily generalised to humans
- does not acknowledge the psychological or cognitive processing involved in the human stress response = can affect how much an individual experiences the stress response
- does not account for individual differences in stress responses for e.g disorders can be associated with high stress levels. e.g PTSD, depression and hypertension
12
Q
A