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Evolutionary Explanations of Food Preference
Descripción
A level (Eating Behaviours) Psychology A2 Mapa Mental sobre Evolutionary Explanations of Food Preference, creado por Stephanie Bates el 31/03/2014.
Sin etiquetas
eating behaviours
psychology a2
psychology a2
eating behaviours
a level
Mapa Mental por
Stephanie Bates
, actualizado hace más de 1 año
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Stephanie Bates
hace más de 10 años
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Resumen del Recurso
Evolutionary Explanations of Food Preference
Main assumption- food preferences advantages to hunter/gatherer
Eating beh/ adaptive - inc/ survival
Evolutionary past still inf/s food preferences today
Taste Receptors
5 - sensitive to range of food qualities (ancestors - dangerous) 1) Sweet - Sugar (energy), 2) Sour - gone off (bacteria), 3) Salt - all cells need to function, 4) Bitter - poisonous plant chemicals, 5) Umami - meaty/savoury (protein)
Benton (2002) - Sweet food reduce distress in babies.
Neophobia
Fear and avoid new foods - evolved when new food stuffs could be poisonous. Sticking to familiar foods inc/ survival (safe)
Frost (2006) - Inc/ liking for to food as more familiar.
Taste Aversion
Avoid foods that make them sick. Powerful mechanisms to keep alive
Garcia et al. (1977) - Wolves - lamb laced w/ poison - sick. Sniff live sheep - leave alone. Learnt instant aversion.
Rats - poisoned + fed unfamiliar food = avoid
Morning sickness - "Embryo Protection Hypothesis". Nausea - early months (coffee, alcohol, eggs). Evolutionary - damage developing baby
Buss (2008) - Foods consistently avoided - 75% morning sickness to meat +eggs (toxins, bacteria)
Speculative - Impossible to test - explanations rely on obs/ modern beh/ - lacks direct support
IDA - Limited - ignore psychological, social, cultural factors. (Parents/ peers inf/ - obs/ learning + modelling). Religious beliefs (Kosher)
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