This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
[{'content': 'An adverse effect of neuroleptic drugs is directly correlated positively to the antipsychotic potency of the different compounds. Which of the following is it? \nSelect and explain. \nA. Sedation, B. Extrapyramidal motor disturbances, C. Postural hypotension, D. Lowering of seizure threshold', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (Ref: KDT 6/e p426, 431) Antipsychotic potency of typical antipsychotic drugs is related to their D2 receptor blocking action. D2 blocking action is also responsible for extrapyramidal adverse effects like muscle dystonia and Parkinsonism etc.', 'role': 'assistant'}]