Stress I Flashcards

1
Q

What is stress

A

A pattern of physiological, behavioural and cognitive responses to stimuli (REAL OR IMAGINED) that disturb equilibrium and tax or exceed our ability to cope

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2
Q

What is a stimuli

A

event that causes stress

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3
Q

what is a response?

A

the reaction to stress in terms of body, mind or physiology

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4
Q

what is a transaction in regards to stress?

A

How people evaluate stress and how it influences the response to stress

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5
Q

What is a stressor?

A

the thing that causes stress

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6
Q

Difference between stimuli and stressor?

A

Stimuli = event; stressor = thing

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7
Q

Difference between Eustress and Distress

A

Eustress - good/positive

Distress - negative/bad

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8
Q

What are the levels and associated timelines of the different types of stress?

A

Micro-stressors: Momentarily-daily
Stress: Days to weeks
Chronic Stress: Months or years

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9
Q

What is an appraisal?

A

Our perception of the stressor, the cognitive appraisal includes 4 aspects

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10
Q

What are the 4 aspects of the cognitive appraisal for stress?

A

Demands: Immediate impact of how demanding the event is
Resources: how do you deal with the stressor, fight or flight?
Consequences: After the event is over what are the consequences, good/bad?
Personal Meaning: What does the outcome mean to you?

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11
Q

Describe the fight or flight response (5)

A
  • First defined by Walter Cannon in the 1920’s
  • Usually triggered by perceived threat
  • Sympathetic Nervous System inhibits non-essential nervous systems
  • Epinephrine, norepinephrine, cortisol and beta endorphins are released, Hypothalamus triggers all responses from other glands
  • CORTISOL release: life saving in the moment but prolonged exposure is bad
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12
Q

Define “GAS”

A

General Adaptation Syndrome:

  • First described by Hans Selye
  • Description of short and long term reaction to stress
  • 3 stages
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13
Q

What are the 3 stages of GAS

A

Stage 1: Fraction of a second long, first shot of adrenaline, and blood pump to muscles. Initially unable to cope with stress
Stage 2: Most able to cope with stress in this stage, physiological responses are fully engaged to meet the demands.
Stage 3: Exhaustion, you have depleted your resources and burnt out. Damage to the body and even death if prolonged

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14
Q

What is Allostasis?

A

Your body becomes use to moderate exposure to stress overtime. Allostatic Load: the stress that is put on the body for prolonged time causing wear and tear

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15
Q

What does it mean to “Tend and Befriend”? Who is likely to do this?

A

Tendency to look for social help, tend to babies and befriend social support. Women tend to do this more, possibly an evolutionary result

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16
Q

What is the hormone linked to decreased stress levels during “Tend and Befriend”?

A

Oxytocin!

17
Q

Describe the physiological process that occurs what responding to stress

A

Higher Brain (limbic and prefrontal cortex) evaluate stress –> Hypothalamus is triggered by high brain which kicks in the SNS and endocrine system–> messages travel through brain stem, ANS and Endocrine effect begin to diffuse–> Organs and Local reflexes are controlled from endocrine and ANS

18
Q

What is the nervous system responsible for in regards to stress response?

A
  • Sensory intake and interpretation
  • Generate emotions
  • Initiate and continued ANS and endocrine response
  • Feedback to correct and limbic system
19
Q

What are the hormones released by endocrine system?

A

Catecholamines: Adrenaline, epinephrine, norepinephrine etc

20
Q

What releases the catecholamines?

A

Adrenal glands and pituitary glands

21
Q

What is the HPA axis

A

hypothalamus, pituitary adrenal gland.

releases stress related hormones (cortisol)

22
Q

What does stress do to the cells of the immune system?

A

Decreases T cells, B cells, and Natural Killer (NK) cells

Causes lowered immune responses ( low cytokine activity)

23
Q

Outcome of animal stress exposure?

A

found that exposure to stress when young made them more capable to deal when older