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Question 284

In biological psychology, researchers study how exogenous psychoactive substances disrupt chemical transmission at the synapse. The diagram below illustrates three distinct mechanisms by which recreational drugs can alter synaptic transmission.

Synaptic mechanisms of recreational drugs

Discuss how recreational drugs alter synaptic transmission in the central nervous system to produce psychoactive effects. In your answer, you must:

  • Explain the difference between agonist and antagonist modes of action.
  • Refer to specific examples of recreational drugs and their effects on neurotransmitters.
[8]

Content Questions

  1. A Level
  2. /Psychology
  3. /Content

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.

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