PSY 215 Lecture Notes - Lecture 1: Orbitofrontal Cortex, Insular Cortex, Reuptake Inhibitor

• School: Ryerson University
• Department: Psychology
• Course: PSY 215
• Professor: Meagan Mackenzie

Document Summary

Withdrawal symptoms typically include, according to the dsm-5:(cid:862)a(cid:374)(cid:454)iet(cid:455), irrita(cid:271)ilit(cid:455), fatigue, (cid:374)ausea/vomiting, hand tremor or seizure in the case of al(cid:272)ohol. (cid:863) substance use disorder- mild is 2-3, moderate is 4-5, severe is 6 or more. Neurobiology of substance use disorders central nervous system. Neurons brain cells which communicate via circuits. Glia supporting cells of the cns; outnumber neurons 10 to 1 (some glia cells regulate neurotransmission and are involved in reuptake) Neurons released bind with receptor sites of the next neuron, during reuptake nts go back into the axon terminal (usually the extra nts to balance with number of receptors) some nts excite while other inhibit the nervous system. Each nt has a role and function in the body and brain- ex. dopamine plays a role in substance use and abuse, involves the reward center in the brain brain areas associated with substance use and addiction.