Stress Flashcards
What is the General Effect Model?
Greeno and Wing 1994: stress affects by a physiological mechanism which increases eating
What animal research provides support for the GEM?
pinching (short term stressor) increases eating, no consistent effect of electrical shock, housing conditions (long term) rats and Syrian hamsters: increased weigh when in improper conditions (isolated rats may be bored)
What IDA point can be made about animal research being applied to human eating behaviour?
humans eat for cognitive and social reasons -animals don’t, maternal rodents lick pups when stressed -humans don’t do this
What are the 2 pieces of human research into the GEM?
Bellisle 1990: 12 men before surgery (anxiety), then month later chose food, no difference in calories. Michaud 1990: students record eating on day of exam and not, 8% increase when anxious
What conclusions can be drawn from human research into GEM?
Bellise no support, Michaud weak support as relies on self report
What IDA point can be made about the GEM model?
cant account for individual differences if we all have the same physiological mechanism, free will?
What is the individual differences model?
Shachter: external eaters (environmental cues), emotional eaters, dieters, women (diet more?) eat more when stressed, normal weight = eat when hungry, stress decreases this, obesity = ignore cues
Who conducted an eating experiment which involved putting people under mild stress?
Oliver 2000: 68, prepare 4min speech or control before meal, stress measured physiologically, overall food intake not affected but more sugary foods eaten by stressed
Who conducted an eating experiment with naturally occur stressors?
Conner 1999: 33f and 27m, daily hassles ans snack diary for week, questionnaire on external eating, externals= relationship between snacking and hassles
