PSYC 100 Lecture Notes - Lecture 11: Human Body Weight, Chopsticks, Polyphagia

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 100
• Professor: A.George Alder

Document Summary

General term referring ot the regulation o need-satisfying and goal-seeking behaviour. Drive: an internal state of tension that motivates an organism to engage in activities that reduce this drive/tension. Homeostasis: body"s tendency to maintain the conditions for tis internal environment by various forms of self- regulation. An external goal that has the capacity to motivate behaviour. Motivation depends on expectancy of actually achieving the goal & incentive value. Stomach removed still be able to experience hunger. Stimulate lateral hypothalamus = stimulate hunger & also increase drinking. Neurons sensitive to glucose in surrounding fluid. Higgs (2008): if you have some interfering encoding, next time they"ll eat more. Effort/ availability (if food is less than available, then you won"t need it as much, also depends on your weight) Chopstick study (overweight only 5% used chopsticks, they"d think it"s too much work so they"d rather use fork) Hershey chocolate kiss study (painter et al. , 2002)