stress Flashcards

1
Q

stress

A

the real or perceived threat to the homeostasis of an organism, that produces a stress response, which is a series of adaptive responses designed to protect the organism

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2
Q

stressor

A

The event triggering the stress response

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3
Q

stress response

A

the physiological response to the stressor

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4
Q

coping

A

Emotional, cognitive and/or behavioral response generated in response to a stress response

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5
Q

Homeostasis

A

the range of an organism’s ability, to regulate its environment so as to maintain a stable condition

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6
Q

Allostasis

A

The process of an organsim responding to a change in homeostasis

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7
Q

Allogenic Load

A

Challenges that cause an organism to begin and carry out efforts to maintain stability.

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8
Q

Acute stress

A

stress of immediate events that are a threat to survival or sense of wellbeing

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9
Q

Chronic stress

A

unique to humans in that we create stress from things that do not immediately affect our survival

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10
Q

Describe the stress bell-curve

A
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11
Q

Describe the 3 stages of stress

A

**immediate response **

  • Sensory information gets interpreted cognitively via neocortex and affectively integrated via limbic system
  • lasts 2 to 3 seconds
  • neuromuscular nervous system detects stimuli and is activated
  • parasymathetic activity activated
    • increases heart rate, turns off digestion

intermediate response (adrenal response)

  • epinepherine and norepineperine are released from the adrenal medulla (lasts 20-30 seconds)

**prolonged stress response **

  • response to severe stress
  • Hypothalamic-pituitary-adrenal axis (HPAC) activated
    • prolonged stress responsible for disease
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12
Q

describe the hypothalmus-pituritary-adrenal axis

relate it to the prolonged stress response

A
  • Hippocampus directs neural impulses to the hypothalamus to release corticotropin-releasing factor (CRF)
  • CRF is sent to the anterior pituitary which releases adrenocorticotropic hormone (ACTH) and endorphines
  • ATCH stimulates the release of glucocorticoids, cortisol and corticosterone which activate the long stress response
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13
Q

describe the effects of adrenal corticosteriods

A
  • Decreases effects of insulin on blood glucose
  • Increases breakdown of proteins
  • Decreases inflammation, immune system function and healing
  • Increased glucose production
  • Increased urea production
  • Increased release of free fatty acids
  • Increased ketone body production
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14
Q

How does chronic stress affect the immune system?

A

Epinephrine and Norepinephrine

  • alters circulation of leukocyte sub-populations
  • decreases cytokine production and release

Glucocorticoids

  • increses risk of infection by causing a shift in the type of T-helper cells the types of cytokines secreted

** cortisol secretion**

  • responsible for more prolonged inhibition of cellular and humeral immune responses
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15
Q

define psychoneuroimmunology

A

Investigations of the bidirectional linkages between the CNS, the endocrine system and the immune system, and the clinical implications of these linkages.

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16
Q

describe cortisol’s effect on Cytokines

A

cortisol causes imunosupressant cytokines to be released, reducing the body’s ability to fight infection when an individual is exposed to longterm stress

17
Q

Describe the structures of the brain and how they activate the stress response

A

limbic system - activated by the immediate stress response and sends sensory information to the frontal cortex to evaulate the threat

Frontal cortex - evaulates the stress signal from the limbic system and determines if it is a threat or not

amygdala - transfers the signal to the hypothalamus and brainstem

  • if there is no threat, amigdala activates the septal region (responsible for relaxation)

hypothalamus and brainstem - activate stress response by releasing stress hormones

18
Q

Describe the psychological apriasial response to stress?

(this is basicly the thought process occuring in the prefrontal cortex)

A

appraisal - how people determine what event is stressful

  • primary appraisal – is there something to stress about
  • secondary appraisal – do I have the resources to deal with the stressful event
19
Q

What are the factors that determine one’s ability to deal with stress?

A
  • Outlets for attention
  • Predictability of stress
  • Sense of control
  • Sense of whether things are worsening or improving
  • Resilient/hardiness personality
    • Cluster of stress-buffering traits consisting
      of commitment, challenge, control
    • Hardy people are more likely to engage in positive reappraisal of stressful events

other factors

  • Genetic factors, Personality features, Epigenetic factors, Neurocognitive, Disability, Maturity level, Gender, Parent/family functio, Peer network and other social support, Previous life experiences, Spirituality
20
Q

Describe some behavioral manifestations of excess stress

A
  • Fatigue
  • Difficult concentrating
  • Detachment
  • Irritability
  • Anger
  • Pessimism
21
Q

What are the 7 behaviors that reduce stress?

A
  1. Sleep 7 to 8 hours
  2. No eating between meals
  3. Eat breakfast regularly
  4. Maintain proper weight
  5. Regular exercise
  6. Moderate or no use of alcohol
  7. No smoking
22
Q

What are some stress reducing-behaviors that tend to increasing stress.

A

· Smoking

· Drinking too much

· Overeating or undereating

· Zoning out for hours in front of the TV or computer

· Withdrawing from friends, family, and activities

· Using pills or drugs to relax

· Sleeping too much

· Procrastinating

· Filling up every minute of the day to avoid facing problems

· Taking out your stress on others (lashing out, angry outbursts, physical violence

23
Q

What are some diseases associated with stress?

A
  • Headaches
  • increased serum cholesterol levels
  • Infections
    • Titers following vaccination with Hepatitis B and influenza were lowered in medical students taking exams, caregivers of family members with Alzheimer’s
  • Cardiovascular disease
    • Police & Fire studies show that stress increases heart disease
  • Diabetes
  • Rheumatoid arthritis
  • Cancer
  • high stress compromises immune response to cancer
  • depression
  • stress causes depression
    • associated with prolonged elevation of cortiso
  • psychosomatic pain
    • autoimmune diseases
  • stress increases morbidity in diseases like lupus
24
Q

What are the 5 R’s of Stress/anxiety?

A

Recognition of the causes and sources of the threat or distress; education and consciousness raising

Relationships identified for support, help, reassurance

Removal from (or of) the threat or stressor; managing the stimulus.

Relaxation through techniques such as meditation, massage, breathing exercises, or imagery.

Re-engagement through managed re-exposure and desensitization

25
Q

Describe problem focused coping

A

Planful Problem-Solving – analyzing the situation to arrive at solutions and then taking direct action to correct the problem.

Accepting responsibility – acknowledging one’s role in the situation while trying to put things right.

Confrontive Coping – taking assertive action, often involving dealing with others (social stresses )

26
Q
  • Seeking social support – can be either problem or emotion-focused coping.
  • Distancing – cognitive effort to detach
  • Escape-avoidance – wishful thinking or taking action to escape or avoid it.
  • Self-control – attempting to modulate one’s feelings in response to the stressor.
  • Positive reappraisal – create positive meaning.
  • Cognitive restructuring - altering stressful thinking
A
27
Q

What types of irrational thinking errors does cognative therapy help pts correct

A
  • Emotional reasoning
    • “I feel so depressed, this must be the worse place to work in the world.”
  • Overgeneralization
    • “I didn’t get a good grade on this test. I am a lousy student.”
  • ​Catastrophic thinking
    • “When I get turned down when I ask for a date it means I will never be successful in love”.
  • •Mind reading
    • “Everybody in the audience must think I’m a complete idiot up here.”
  • ​Selective negative focus
    • seeing the negatives but missing the positive details