PSY 352 Lecture Notes - Lecture 12: Reward Dependence, Harm Avoidance, Sertraline

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 352
• Professor: Adam Lazarewicz

Document Summary

100 billion neurons with 10,000 connections to other neurons hundreds of trillions of total connections. Chemical that jumps the synapse gap to send signals. Mao: enzyme that breaks down neurotransmitters (high mao = reduced neural signal, low. Co(cid:374)trols (cid:271)rai(cid:374)"s re(cid:449)ard & pleasure physical good feelings. Medication = ssris (prozac, zoloft) blocks the reuptake channels. Motive to seek out thrills/excitement to kick up dopamine. High avoidance = cautious & shy spikes of serotonin in the short term, but long term lower levels. Regular bodily rhythms that occur in a roughly 24-hour period. Living for a while with no cues for time (no windows, scheduled meals, live tv/radio) Typically 24-25 hour circadian rhythm (true of a blind person), but large variability (one person settled into 16 hour, one into 50!) Each hemisphere controls opposite side of body. Controls lots, like planning, motor control, reasoning, etc. Bisazza & dadda (2006): 2 strains of fish, one with asymmetrical and one with symmetrical.