Lecture 25 - Conditioning in Drug Use Flashcards
Why do we take drugs, conditioned incentives?
Drug -> good outcome (reinforcement)
OR
Drug -> bad outcome (positive punishment)
Needle freak phenomenon
Just shooting up with saline leads to a high because of the process of shooting up.
Motivation for drug taking: want vs. like?
Drug addicts report wanting the drug even after ceasing to like it. This suggests we have 2 independent brain systems for positive motivation.
Motivation for drug taking: WANTING SYSTEM
(incentive motivation system)
Causes us to approach cues associated with desirable substance, engage in actions to get this substance. It is normally engaged by biological importance (water, sex).
Motivation for drug taking: LIKING SYSTEM
(part of the hedonic system)
Controlled by negative feedbacks such as satiety etc., and activates the wanting system (we want things we like)
Tolerance
An internal decreased response sensitivity
Opponent Process Model
Drugs have a large effect on the Central Nervous System that cause physiological changes (these changes are the A-process).
Attempting to maintain or regain homeostasis after drug taking causes the body to initiate drug compensatory responses (these responses are the B-process)