A false perception that occurs in the absence of an actual sensory stimulus is known as

Appeared in: Haryana CHO - 2022

Explanation

Hallucination is a perception occurring without any external sensory stimulus.
It can affect any of the five senses and is experienced as real by the individual.
Key differentiator: Occurs in the complete absence of a sensory input.

Why Other Options Were Wrong

Option B: Delusion is a false, fixed belief not based on reality or evidence, but it is a disorder of thought, not perception.
Option C: Confabulation is the unconscious filling of memory gaps with fabricated stories, typically seen in memory disorders like Korsakoff's syndrome.
Option D: Illusion is a misinterpretation or distortion of a real external stimulus, not a perception in the absence of stimulus.

Related Visual

Comparison of hallucination, illusion, delusion, and confabulation with definitions and clinical examples.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Definition and differentiation of hallucination from other perceptual and thought disorders as background academic context rather than a clinical decision trigger.
Recognizing hallucinations is crucial for diagnosing psychiatric disorders like schizophrenia and mood disorders with psychotic features.
Nurses must differentiate hallucinations from illusions and delusions to provide accurate assessment and care.
What if? If the question described a misinterpretation of a real object (e.g., seeing a shadow and thinking it is a person), the answer would be illusion, not hallucination.

How to Approach the Question

Identify the key phrase: 'absence of an actual sensory stimulus.'
Recall definitions of hallucination, illusion, delusion, and confabulation.
Eliminate options that involve real stimuli or thought/memory disorders.
Select the option that matches a perception with no external input.
Use clinical examples to confirm your choice.

Concept Tested & Keywords

Concept Tested: Definition and differentiation of hallucination from other perceptual and thought disorders
Stem keywords: false perception, absence of actual sensory stimulus
Lead-in keywords: is known as

Question ID

QjfTSSMdpCdyGYSH-5aoKC

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, 3251-3253, 3250-3252

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