PSYC 2301 Lecture Notes - Lecture 16: Psychoactive Drug, Psychological Dependence, Reinforcement

• School: Carleton University
• Department: Psychology
• Course: PSYC 2301
• Professor: Tarry Ahuja

Document Summary

Addiction: a condition, produced by repeated consumption of a natural or synthetic psychoactive substance, in which a person has become physically and psychologically dependent on. Physical dependence: exists when the body has adjusted to a substance and incorporated it into the (cid:374)o(cid:396)(cid:373)al fu(cid:374)(cid:272)tio(cid:374)i(cid:374)g of the (cid:271)ody"s tissues. Tolerance: the process by which the body increasingly adapts to a substance and requires larger doses to achieve the same effect. Withdrawal: unpleasant physical and psychological symptoms people experience when they discontinue or markedly reduce using a substance on which they have become dependent. Psychological dependence: state in which individuals feel compelled to use a substance for the effect it produces, without necessarily being physically dependent on it. Positive reinforcement: the consequence is an event or item the individual finds pleasant or wants that is introduces after the behaviour occurs. ie: the buzz of a cigarette or alcohol consumption.