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Li et al. (2013) explored whether heroin addiction is linked to abnormal brain function, especially in the posterior cingulate cortex, or PCC. The researchers compared heroin-addicted users with healthy controls during rest and during exposure to heroin-related cues.
Step-by-step lessons covering Edexcel AS Level Psychology Contemporary study: Li et al. (2013) for AS Level Psychology. Each lesson works through exam-style questions.