sport performance Flashcards
(20 cards)
Anxiety
An aversive emotional state characterised by feelings of worry
Arousal
The state of an organism varying on a continuum from deep sleep to intense excitement
electroencelephagram (EEG) brain waves when increased anxiety/arousal
decreased sleep (theta waves) and increased excitement (beta waves)
electrocardiogram (EKG) heart rate when increased anxiety/arousal
increased heart rate
electromyogram (EMG) muscle tensionwhen increased anxiety/arousal
increased muscle tension
ventilation when increased anxiety/arousal
increased respiration rate and decreased tidal volume
blood pressure when increased anxiety/arousal
increased blood pressure
skin response when increased anxiety/arousal
increased sweating and decreased skin resistance
biochemical when increased anxiety/arousal
increased adrenaline and noradrenaline
social facilitation (Zajonc 1965) shows that
more arousal= increased likelihood of one’s dominant response - high arousal should hinder novice performance and help expert performance
the testing of social facilitation (maccracken and stadulis 1985)
examined the effects of arousal on children’s balance - balance pretest classified children as having high or low balance skill - results showed that low skill performance was worse in front of spectators
what are the problems with social facilitation
too simplistic and its predictions often fall short- can’t explain choking under pressure
inverted-U hypothesis (Yerkes and Dodson 1908)
increased arousal improves performance but only up to a certain point- further increases in arousal cause a gradual deterioration of performance
criticisms of social facilitation and inverted-U models
Arousal conceptualised as a uni-dimensional response - there is evidence for 3 distinct forms of arousal (electrocortical, autonomic, behavioural) Lacey 1967 - also cognitive appraisal of arousal symptoms can influence physiological measures (bandora 1997)
catastrophe model (Hardy 1990)
3D model that considers interactions between anxiety, arousal and performance
4 faces of catastrophe model
1) when arousal is low as anxiety increases so does performance 2) when anxiety is low performance increases with arousal up to certain extent 3) when arousal high performance decreases as anxiety increases and 4) when anxiety is high performance increases with arousal up to certain point (mismatch)
testing the catastrophe model (hardy & Parfitt 1991)
measured anxiety (questionnaire), arousal (HR) and performance (basketball shooting accuracy)- didn’t match predictions when anxiety low (arousal didn’t influence performance)
limitations of Hardy & Parfitt 1991
only one basic measure of arousal and arousal was manipulated by physical exercise rather than by psychological factors
general criticisms of the catastrophe model
difficult to test and difficult to make predictions from model because optimal levels of anxiety/arousal depend on nature of task & personality of individual
general criticism of all models
they do not detail how anxiety and arousal exert their effects on performance