IGNOU PB Bsc Nsg Entrance-2017
Mental Health Nursing
Easy
False perception with external stimuli is called?
Appeared in: IGNOU PB Bsc Nsg Entrance-2017
Explanation
- An illusion is defined as a misinterpretation or inaccurate perception of a real, external sensory stimulus.
- The defining characteristic is the presence of an actual stimulus that is perceived incorrectly.
- A common example is mistaking shadows on a wall for a person or object, especially when fatigued or in a dimly lit environment.
- Unlike hallucinations, illusions are distortions of real things, not creations of the mind without any external input.
Why Other Options Were Wrong
- Option B: A hallucination is a false sensory perception that occurs in the absence of any real external stimulus. The question specifies that an external stimulus is present.
- Option C: A delusion is a disorder of thought content, not perception. It is a false, fixed belief that is resistant to reason or evidence to the contrary.
- Option D: Intellect refers to the faculty of reasoning, understanding, and thinking. It is a cognitive function, not a type of perceptual disturbance.
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 as background academic context rather than a clinical decision trigger.
- Nurses must accurately differentiate between illusions, hallucinations, and delusions during a mental status examination to help identify the underlying cause, which could range from delirium, dementia, schizophrenia, or substance intoxication/withdrawal.
- Documenting the specific type of perceptual disturbance is critical for communication with the healthcare team and for planning appropriate interventions, such as reality orientation for illusions or safety measures for command hallucinations.
- What if? If a patient sees 'spiders' on a clean wall, it's a visual hallucination (no stimulus). If they see 'spiders' in the patterns of the wallpaper, it's an illusion (stimulus is present but misinterpreted). The nurse's approach would differ, focusing on safety for hallucinations versus reassurance and reorientation for illusions.
How to Approach the Question
- First, break down the question stem into key components: 'False perception' and 'with external stimuli'.
- The term 'perception' points towards sensory experiences (seeing, hearing, etc.), which helps narrow down the options to those related to perception (Illusion, Hallucination).
- The phrase 'with external stimuli' is the critical differentiator. This means there is a real object or sensory input that is being misinterpreted.
- Evaluate the options based on this key differentiator: An illusion is a misinterpretation of a real stimulus. A hallucination occurs without a real stimulus. A delusion is a false belief, not a perception.
- Therefore, 'Illusion' is the only option that correctly matches the definition of a false perception based on a real external stimulus.
Concept Tested & Keywords
- Concept Tested: Disorders of Perception
- Stem keywords: False perception, external stimuli
- Lead-in keywords: is called
Question ID
QOlyGpN4LSmsbxMmDOiyPN
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
Practise the full IGNOU PB Bsc Nsg Entrance-2017
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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