Chapter 6 Notes
Chapter 6 Notes Psych 1100H
Popular in Honors Introduction to Psychology
Popular in Psychology
This 2 page Class Notes was uploaded by Borgemenke on Friday September 16, 2016. The Class Notes belongs to Psych 1100H at Ohio State University taught by Anna Yocom in Fall 2016. Since its upload, it has received 14 views. For similar materials see Honors Introduction to Psychology in Psychology at Ohio State University.
Reviews for Chapter 6 Notes
Report this Material
What is Karma?
Karma is the currency of StudySoup.
Date Created: 09/16/16
Chapter 6: -Principles of Motivation -Rewards + the Brain -Hunger + Eating -Sleep Motivation: Factors that cause an individual to behave a certain way … very broad Motivational drives: psychological state -incentives: what we were motivated to obtain Types of Drives: -Regulatory: Help preserve homeostasis (internal equilibrium) -Ex: hunger and thirst -Non-regulatory: -Safety: help avoid/ escape danger Ex: Fear, Anger -Reproduction Ex: Sex, Care for young -Social: cooperation Ex: Friendship, acceptance, approval -Education: learning Ex: Play and explore (curiosity) Components of Rewards -Liking -Subjective feeling of pleasure -Wanting -Desire to obtain reward -Reinforcement -More likely to repeat same behaviors again (learning) Brain Mechanisms -Olds + Milner study – Neural “reward system” - rate will continually work to self- stimulate a tract called medial forebrain bundle -synaptic connections in nucleus accumbens (basal ganglia) Separate Systems of “Liking” and “Wanting” -Dopamine -Causes “wanting” behaviors; motivates us to obtain food, explore, etc. -Endorphins -Involved in pleasure we feel when receiving rewards (“liking”) What about Reinforcement? -Dopamine helps us learn when/ where to obtain rewards -Ex: Drugs cause dopamine release each time (reinforce wanting behaviors) -Lose endorphin response over time (may not feel pleasure from drug) Hunger and Eating -Appetite-Control Center -Arcuate nucleus in the hypothalamus -Appetite- stimulating neurons -neurotransmitter: Neuropeptide Y -Appetite- suppressing neurons -Short Term Control -Many internal signals (glucose, hormones, etc.) -Peptide YY (PYY): appetite- suppressing hormone ---comes from intestines after we eat -released after meals and acts on neurons in AN -insufficient PYY may contribute to obesity (more PYY in lean individuals) -Long-Term Control -Fat cells secrete Leptin (hormone) -Appetite-suppressant -Overweight= no leptin? -No…just seem to be insensitive to effects of leptin