Exam 4 Flashcards
define stress
emotional experience accompanied by predictable biochemical, physiological, cognitive, and behavioral change directed towards either altering or accomodating its effects
define stressors
stressful events
characteristics of fight or flight response
adaptive yet harmful
define the general adaptation syndrome
regardless of the cause of the threat, we respond witht he same physiological pattern of rections
what are the three phases of the general adaptation syndrome
alarm
resistance
exhaustion
criticisms of the general adaptation syndrome
limits role of psychological factors
assumes that all responses are the same
explain the tend and befriend theory
we respond with social affiliation and nurturant behavior toward offspring
what is the stress hormone
oxytocin
what are the psychological appraisals of stress
primary appraisal- the meaning of the stressor
secondary appraisal– assessment of coping abilities and resources
characteristics of sympathetic adrenomedullary sstem
threats labeled by cerebral cortex
fight or flight response
secretes epi and norepi
effects of SAM
increases bp, hr, sweating, disrupts sleep
characteristics of HPA axis
releases cortisol
effects of HPA
conserves carbs, reduces inflammation
what can results from repeated activation of HPA
can comprimise its functioning and alter cortisol levels
how do chronic stress levels affect cortisol
increases in evening
exaggerated cortisol response or none at all
effects of excessive epi and norepi
suppression of immune system
increases bp and hr
heart defects
effects of excessive cortisol
destruction of neurons in hippocampus
belly fat
more significant health consequences
define stress reactivity
the degree of change that occurs physiologically in result of stress
define allostatic load
physiological costs of chronic exposure to fluctuating neural responses to multiple physiological systems resulting from chronic stress
what does build up of allostatic load cause
decreased cell-mediated immunitiy
inability to shut off cortisol
high waist to hip ratio
what makes events stressful
negative events uncontrollable events ambiguous events overload predictable stress
which populations are able to adapt the least to stress
children, elderly and poor
what is the acute stress paradigm
studying stress in a lab and seeing the impact of stress on physiological and psychological responses
What did Holmes and Rahe do
developed a stressful life event inventory
what does the stressful life event inventory do
can predict illness
what are some problems with the stressful life event inventory
items are vague
events are prevalued
usually includes positive and negative events
does not asses if they have been removed
what are examples of life based stressors
catastrophes
daily hassles
examples of environmental stressors
noise
crowding
social interactions
what are examples of work stressors
role ambiguity
shift work
job loss
what are the different ways to interpret stress
distress- negative
neustress- neutral
eustress- positive