BIOL 207 Study Guide - Final Guide: Transient Ischemic Attack, Traumatic Brain Injury, Subarachnoid Hemorrhage
Document Summary
11 p 412-413: closer look: essay: pleasure me. Brains wired to reward with pleasure w/engagement of behavior necessary for survival. Reward system: neurons that release ntdopamine in areas of brain called ventral tegmental area (vta), nucleus accumbens, and amygdala. Ecstasy romantic love may be brain bath of glutamate/norepinephrine act on reward system to release dopamine. Nt of reward system are chemical cousins of amphetamines. Methamphetamine crystal meth artificially stimulate brains to provide highly addictive pleasure flush (short lived because brain flooded with nt-like chemicals from outside so makes less of own. Cocaine (reward system titilater), granular form inhaled snorted , 14026 Cheaper smokable form crack available, intensely addictive, higher high than cocaine, deeper crash. Traditional antiaddiction drugs take so long reduce cravings users drop out of treatment programs. Vaccine prompts immune system to bind cocaine molecules, prevent from entering brain: clinical trial, vaccine dampered pleasurable responses to cocaine and reduced addicts use.
