This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Symptoms & Signs , Subject name: Psychiatry
[{'content': 'Hallucination and illusion are disturbances in \nSelect and explain. \nA. Thought, B. Perception, C. Sensation, D. Mood', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. b (Perception ) (Ref. Kaplan & Sadock\'s Synopsis of Psychiatry, 10th ed., p. 278)Hallucination and illusion are disturbance in perception.Schizophrenia is a heterogeneous syndrome characterized by perturbations of language, perception, thinking, social activity, affect, and volition.Key Symptoms Of Depersonalization# Depersonalization: Believe that he/she is not real, "Out-of-Body Experience"# Derealization: Believe that the world is not real# Perception Distortion of the environment during episodes of Depersonalization# Jamais vu (a sense of familiar things being strange)# Deja vu (a sense of unfamiliar things being familiar)', 'role': 'assistant'}]