A01 evolutionary explanations of food preferences Flashcards
Adaptive functions of a particular behaviour
Just saying
What are the 4 sections
The environment of evolutionary adaptation
Early diets
Preference for meat
Taste aversion
Talk about the environment of evolutionary adaptation
The environment in which human beings first emerged as a separate species
Natural selections favoured adaptations tgat promotes survival in eea
Talk about early diets
Early diets of humans indicate that fatty foods were adaptive for energy
Also so an evolved preference for food rich in calories
Tall about preference of meat
Fossil evidence suggests early diet mainly consisted of animal based food
This is because it’s unlikely that early humans had enough energy from meat free diet cz of how much they did
What are the 3 sections for taste aversion
Bait shyness or taste aversion
The adaptive advantages of taste aversion
The the medicine effect
Talk about taste aversion Who tested it
García
What did garcía do and find
Found rats that’s became I’ll cz of radiation after eating saccharin developed an aversion to it as oscillation.
Talk about the adaptive advantages of taste aversion
The development of taste aversions helped ancestors to survive cz they’re difficult to shift once learned
Talk about medicine effects
Animals learn preference for food that makes them healthier
Who tested medicine effect
García
Found that thiamine deficient rats were presented a flavour for it then injected with thiamine. They learned to associate favour with thiamine