Eating Behaviour Flashcards
What model is used to model motivation
WC
Describe catabolism
use of energy in biological processes
Describe anabolism
storage of energy put into a system
What was the effect of bilateral lesions in lateral hypothalamus
weight loss
What was the effect of lesions in ventromedial part of hypothalamus
overeating, obesity
What is the function of the venteromedial hyothalamus
satiety centre
What did Kennedy propose
long term feeding regulation
What did Coleman propose
soluble factor is released by fat
What produces leptin
fat
What is leptin
hormone
What is the effect of Leptin?
decrease eating behaviour, increase energy expenditure
How does starvation affect leptin
Leptin is deficient - stimulates eating
What is the effect of leptin deficiency
reduces energy expenditure, reduces reproductive competence
What do high levels of leptin act on
receptors in arcuate nucleus of hypothalamus
When is Gherelin produced
empty stomach
What is gherelin
hormone
Where is Gherelin released into
bloodstream
What does Gherelin stimulate
NY and AgRP release, feeding
What are the other aspects of feeding
hedonistic motivation, mood
What can anorexia and bulimia be linked to
low serotonin and mood
What is the long term regulation of feeding
leptin
What regulates feeding short term?
Gherelin, cultural pressures
What short term signals regulate feeding
satiety
When are satiety signals produced
initial stages of digestion
