Tobias has recently started smoking cigarettes regularly and finds himself craving them within an hour of waking up. His sister, a biology student, explains that his brain chemistry is adapting to the nicotine.
With reference to Tobias, outline the neurochemical explanation for nicotine addiction.
84 exam-style questions on Edexcel A Level Psychology Content, covering Issues around drug taking, Biological explanations of drug addiction, Learning explanations of drug addiction, Treatments for drug addiction, Anti-drug campaign and strategies, Individual differences, and Developmental psychology. Each one has a worked solution and a mark scheme showing where the marks go.