Lecture 2 - Stress and anxiety Flashcards
(53 cards)
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
Evaluate burton (1988)
√ - research support from martens et al
√ - Relatinships strongest in short duration events - feel anxious until point of perofmrnace, feel fine once started
How does anxiety change before, during and after the event?
Cognitive anxiety stays the same until the event, then gets worse
Somatic gets worse in the build up before event, then steadily goes down
Define cognitive and somatic anxiety
Cognitive = worry, concentration disruption Somatic = perceptions of physiological changes