HLSC 1F90 Lecture Notes - Lecture 7: Chemotherapy, Inflammatory Bowel Disease, Recreational Drug Use
10 Apr 2018
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How drugs affect the body- section in textbook (not covered in lecture but will be on exam) Representative psychoactive drugs- section in textbook (will not be on exam except for questions about caffeine and marijuana/other cannabis products) Addiction: a chronic disease that i(cid:374)(cid:448)ol(cid:448)es disruptio(cid:374) of the (cid:271)rai(cid:374)"s s(cid:455)ste(cid:373)s related to re(cid:449)ard, motivation and memory. It may start as a habit, but then becomes uncontrollable (not the same as a habit) It causes a pathological use of a substance or pursuit of a behaviour in order to relieve/avoid withdrawal. Historically, addiction was only recognized in relationship to drugs. Now, it is recognized that behaviours can be addictive (gambling, cell phones) For both drugs, and behaviours, addiction has certain characteristics. Reinforcement: the addiction reinforces itself (positive: behaviour/substance use reliably results in pleasure or reward. Negative: being unable to engage in behaviour/use substance results in stress, anxiety, discomfort or depression)
