Lecture 2 - Stress and anxiety Flashcards
Who distinguished the types of stress?
Selye (1973)
- good stress = eustress
- bad stress = distress
give examples of good stress
- eustress = muscles wouldnt grow if they werent stressed
- Learning - wouldnt learn coping strategies without experiencing stress
Who looked at the stress WW2 pilots experienced?
Shaffer (1947)
OUtline Shaffer (1947)s findings
ww2 pilots experienced these when flying over enemy territory: - pounding hear/pulse = 86% - Tense muscles = 83% - Irritable/ angry = 80% - Dry throat/mouth = 80% ETC
What was gould & Kranes (1992) definition of arousal
“a general physiological and psychological activation of the organism that varies on a continuum from deep sleep to intense excitement”
Who proposed the inverted u-hypothesis?
Yerkes-dodson (1908)
Who propsed Drive theory?
Hull (1943), Spence & Spence (1966)
Outline Drive theory
Performance = Habit X Drive
- habit = how well skill is learned
- drive = arousal on this spectrum
Basic assumption = for well learned skills, as drive state increases, so should performance - if not learnt so well, drive state increasing will reduce performance
Outline Arent & Landers (2003) experiment into Drive theory
- p’s had to be cycling and their movement (start of reaction movement to end) were tested
- as heart rate increased, movement time decreased
- higher arousal = better performance
What are the problems with drive theory?
- standard arousal may lead to severl emotions - heart rate doesnt indicate emotion
- Elite athletes are very good at the skill - so how do we explain choking? - led to development of inverted u
- not much empirical evidence
Outline Yerkes & Dodson (1908) U hypothesis
- there is an optimal level of arousal, this level is different for simple vs complex skills
Outline Yerkes & dodson (1908) experiment
Mice were taught to distinguish between coloured doors/ rooms - they varied how similar the colours were
- they varied intensity of shock from low-medium-high
- they learnt quickest if given a medium shock
- if they were right = food
- if wrong - shock
√ - supported by Arendt & Landers who found the same thing, i.e. too much is bad
What happens when you experience stress
fight or flight
- e.g. among all those changes, noradrenaline is secreted, glycogen -> glucose
outline Weinberg & Goulds (2011) definition of anxiety
A negative emotional state with feelings of nervousness, worry, and apprehension
Associated with activation of arousal of the body
Define trait anxiety
Feel anxious in most circumstances - its a predisposition
See things as a threat + feel anxious about them
Define state anxxiety
How you feel in a particular point in time
Who developed competitive trait anxiety?
Martens et al (1990)
Outline Martens et al (1990)
Gave a questionnaire to assess levels of competitive trait anxiety - e.g. before i compete i feel uneasy
- found a generall weak association with performance
- low trait anxious had free ‘phasic movement’ (fluid motion, not stiff or tense)
- High trait anxious - co-contraction of agonist + antagonise muscles
Who came up with Multidimensional state anxiety>
Burton (1988)
OUtline Burton (1988)
Multidimensional state anxiety
- studied swimmers
- had to report anxiety and self-confidence before events
- compared it to their performance
- MSA predicts difference between different components of anxiety and performance
- e.g. more cog anx leads to worse performance
- somatic anxiety had an inverted u shape with peformance - optimal level
- more self-confidence = better performance
Who came up with the competitive state-anxiety inventory-2?
Martens et al (1990)
- questionnaire has questions assessing cognitive anxiety, somatic anx, and self-confidence
- supports Burton