HLSC 1F90 Lecture 19: TOPIC19. Drugs and Addiction
9 Mar 2018
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Document Summary
A chronic disease that involves disruption of the brain"s systems related to reward, motivation, and memory. It may start as a habit, but then become uncontrollable. 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 being recognized in that behaviours can be addictive. For both, drugs (substances) as well as behaviours, addiction has certain characteristics. Negative avoiding behavior/ substance results in stress, anxiety, discomfort and depression. Compulsion or craving there is a strong (irresistible need) to engage in behaviour/ substance use. Obsessive planning for next opportunity to engage. Loss of control the individual cannot overcome the impulse to do the behavior/use the substance. Escalation more and more of the behavior of substance is required to produce its desired effects this is a result of tolerance.
