Eating behaviour Flashcards
(17 cards)
What are selective pressures?
Environmental conditions leading to differential fitness based on the value of a particular trait
What is the EEA?
Th environment of evolutionary adaptation.
What are the 4 food preferences does the evolutionary approach explain?
- sugar
- salt
- fat
- protein
What is meant by taste aversion?
An innate predisposition top learn to avoid potentially toxic foods
How is taste aversion adaptive?
What is neophobia?
A fear of eating/ trying new unfamiliar foods
Why would eating meat have been adaptive in the EEA?
Contains protein for brain growth and development, the more protein the better for development.
What foods would we have eaten in the EEA for energy?
Fruits for sugar
Why would salt have been adaptive for the EEA?
It has vitamins and minerals that are important for cell functions
How does classical conditioning explain food preferences?
Learning through association - flavour to flavour learning as develop preference for new foods because associate it with a food we already like
How does operant conditioning explain food preferences?
Learning through reinforcement - children’s food preference reinforced by parents as provided rewards or punishments for eating certain foods
How does SLT explain food preferences?
Children acquire food preferences off their role models as child identifies with role model.
How do families influence food preferences?
Parents control what children eat and sugary foods are used as rewards for children. - the parents decide what food is available for them.
How do peers influence food preferences?
Children see other peers as role models and may begin to eat the same as them through observational learning
What effect does culture have on food preferences?
In some cultures, ways of eating like vegetarianism are more common than in other cultures. e.g Australia eat kangaroo.
What is homeostasis?
The bodys ability to physiologically regulate its inner environment to ensure its stability.
What roles do insulin and glucagon have?
They control sugar and activation for LH.
