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Tobacco smoking as a second order schedule of reinforcement.

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Presentation on theme: "Tobacco smoking as a second order schedule of reinforcement."— Presentation transcript:

1 Tobacco smoking as a second order schedule of reinforcement.
Tobacco smoking as a second order schedule of reinforcement. Schematic diagram showing the postulated differential dopamine (DA) responses to nicotine in tobacco smoke when delivered following a period of abstinence and following a period of continued smoking. This causes an accumulation of nicotine in the blood and brain resulting in desensitisation of neuronal nicotinic receptors. The figure demonstrates the proposed role of nicotine, conditioned sensory stimuli within tobacco smoke and avoidance of withdrawal as reinforcers of the tobacco smoking habit in nicotine-abstinent and nicotine-replete individuals. D. J. K. Balfour Eur Respir Rev 2008;17: ©2008 by European Respiratory Society

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