Topic 9 part 2 Flashcards
Hypothalamus
monitoring levels of glucose
Hormones
Gherilin
- Increases eating (reduced after gastric bypass)
Leptin
- produced by fat cells signals, reduces hunger
Insulin
- Secreted by the pancreas, regulates satiety & food intake
Empty stomach
Sends signals to the brain to stimulate hunger
Stretch rectors
Detect fullness & send satiety signals to the brain
Reward system - dopamine
The brian rewards system plays a role, especially for highly palatable foods, releases of dopamine reinforce behaviors
Environmental & psychological influences
Sight, smell, stress
Ozempic (Glucagon-like peptide I)
Lower hunger drive
- mimics GLP - I hormone
Reduced cravings
- Also dampens the brain’s response to food-related cues
Social/environmental factors on hunger
Biological factors alone do not explain our eating behaviors
Culturally learned preferences & habits
Social norms/social rules
Food-related cues
Stress
Social Motives
Need for achievement
- Desire to accomplish goals by setting high standards and striving to meet them
Need for affiliation
- Desire to have positive interaction with others and be in close, friendly relationships