PSYC 1001 Lecture Notes - Lecture 13: Victoria Medal Of Honour, Lateral Hypothalamus, Leptin

• School: Memorial University
• Department: Psychology
• Course: PSYC 1001
• Professor: markherbert

Document Summary

Semi-starvation study (6 months half calories: apathy, reduced activity, obsessions with food: domination conversations, thoughts, dreams, etc. Contractions of the stomach match feelings of hunger. Satiety signals can be activated by placing a balloon in the stomach: stomach space is already partially occupied by balloon; the stretch receptors will be activated even when the person eats a small amount, not very successful. Placement of a band around the stomach or stapling the stomach so it is smaller: ma(cid:374)y lose (cid:449)eight at first, (cid:271)ut the(cid:374) gai(cid:374) it (cid:271)a(cid:272)k suggesti(cid:374)g these sig(cid:374)als are(cid:374)"t the o(cid:374)ly factors. Satiety sig(cid:374)als fro(cid:373) sto(cid:373)a(cid:272)h are(cid:374)"t (cid:373)ost i(cid:373)porta(cid:374)t: people with no stomach at all still report feelings of hunger. Eating occurs because of a mix of hunger and satiety. Cues related to the metabolism of food can signal hunger or satiety. Some cues are related to levels of different chemicals produced in our blood when our bodies digest food.