AIIMS Rishikesh & Jodhpur NO - 2017
Psychiatric Nursing
Easy

False sensory perception without external stimuli is called?

Appeared in: AIIMS Rishikesh & Jodhpur NO - 2017

Explanation

  • A hallucination is defined as a sensory perception that seems real but occurs without any external stimulus.
  • This phenomenon can affect any of the five senses: auditory (hearing), visual (seeing), tactile (touching), olfactory (smelling), and gustatory (tasting).
  • For the individual experiencing it, the perception is genuine and indistinguishable from reality.
  • Auditory hallucinations are most commonly associated with schizophrenia, while visual hallucinations often suggest an organic cause like delirium or substance withdrawal.

Why Other Options Were Wrong

  • Option A: Dementia is not a single perceptual event but a chronic syndrome characterized by a progressive decline in multiple cognitive domains, including memory, language, and problem-solving.
  • Option B: A delusion is a disorder of thought content, not perception. It is a false, fixed belief that is maintained despite clear evidence to the contrary.
  • Option C: An illusion is a misinterpretation or distortion of a real external stimulus. A stimulus must be present for an illusion to occur.

Related Visual

Visual explanation — Related Visual
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Disorders of Perception and Thought as background academic context rather than a clinical decision trigger.
  • Accurately differentiating between hallucinations, illusions, and delusions is a fundamental nursing skill essential for a correct psychiatric diagnosis and care planning.
  • Patient safety is a primary concern. Nurses must assess for command hallucinations (voices telling the patient to harm themselves or others) and implement appropriate safety precautions.
  • The type of hallucination can provide clues to the underlying cause. For example, visual hallucinations are more common in delirium, while auditory hallucinations are classic symptoms of schizophrenia.
How to Approach the Question
  • First, identify the keywords in the question stem: 'false sensory perception' and 'without external stimuli'.
  • The phrase 'sensory perception' directs you to options related to perception (Illusion, Hallucination) and helps rule out options related to thought (Delusion) or general cognition (Dementia).
  • The key differentiator is the phrase 'without external stimuli'. This is the textbook definition of a hallucination.
  • Contrast this with an illusion, which requires a real external stimulus that is misinterpreted.
  • By matching the definition in the question to the precise definition of the terms, you can confidently select the correct answer.
Concept Tested & Keywords
  • Concept Tested: Disorders of Perception and Thought
  • Stem keywords: False sensory perception, without external stimuli
  • Lead-in keywords: is called

Question ID

q4HUGAbvhkapQwBX3Hsj-

Reference Book

E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) pp. 3815-3817, 3250-3252

E6 Medicine Macleod Clinical Examination 15e p. 372-374

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