A false, irrational, unshakeable belief is called?

Appeared in: IGNOU Post B. SC. Nursing entrance-2019

Explanation

A delusion is defined as a fixed, false belief that is strongly held and unshakeable, even when presented with evidence to the contrary.
The key characteristics described in the question—'false,' 'irrational,' and 'unshakeable'—are the defining features of a delusion.
Unlike an illusion, a delusion is not a misinterpretation of a real stimulus but a belief that arises without any external basis.
It is also distinct from an obsession, which is an intrusive thought the person often recognizes as their own and irrational.

Why Other Options Were Wrong

Option A: An obsession is a recurrent, intrusive thought or urge, not a fixed belief. The individual often recognizes the thought as irrational but struggles to control it.
Option B: A compulsion is a repetitive behavior or mental act performed to reduce anxiety from an obsession, not a belief.
Option D: An illusion is a misinterpretation of a real external stimulus. The stimulus exists, but perception is distorted.

Related Visual

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Psychiatric Terminology: Disorders of Thought Content as background academic context rather than a clinical decision trigger.
Nurses must be able to differentiate between delusions, obsessions, and illusions to accurately assess a patient's mental state and report findings.
The primary nursing intervention for a patient with delusions is to build trust and not directly challenge the belief, as this can increase agitation and paranoia. Instead, focus on the underlying feelings and reality orientation.
Delusions are a key symptom in several serious mental illnesses, including schizophrenia, bipolar disorder, and severe depression. Prompt recognition is vital for appropriate treatment planning.

How to Approach the Question

First, analyze the keywords in the question stem: 'false,' 'irrational,' and 'unshakeable belief.'
This is a definition-based recall question. Your goal is to match these keywords to the correct psychiatric term.
Evaluate each option against the definition provided in the stem.
An 'obsession' is a thought, not a belief. A 'compulsion' is an act, not a belief. An 'illusion' is a misperception, not a belief held without stimulus.
A 'delusion' is specifically defined as a false and fixed belief, which directly matches all the keywords in the question.
Therefore, select the option that defines a fixed, false belief.

Concept Tested & Keywords

Concept Tested: Psychiatric Terminology: Disorders of Thought Content
Stem keywords: false belief, irrational, unshakeable
Lead-in keywords: is called

Question ID

Q8Z0TpuLls_Chb-zwRgjum

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. 3802-3804, 3249-3251

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