Marcus takes a prescription stimulant recreationally. At first, he only took it on weekends to party, but he now uses it every morning. He finds he must take triple his original dose to experience the same boost in cognitive performance.
When he does not take the stimulant, Marcus experiences debilitating fatigue and muscle tremors. He has also become convinced that he cannot handle his demanding university coursework or interact confidently with his peers if he does not take it.
Discuss concepts of substance dependence with reference to Marcus's behaviour.
Practise Edexcel A Level Psychology Content with exam-style questions for A Level Psychology. 1,059 questions covering Diagnosis of mental disorders (4 Ds), Classification systems (DSM and ICD), Schizophrenia and one other disorder, Treatments for the two disorders, Individual differences, and Developmental psychology, matched to the Edexcel A Level Psychology (9PS0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
