Psychiatric Assessment and Diagnosis Practice Questions

Q: Which of the following differentiates pseudohallucination from hallucination?

External objective space. To differentiate between a **hallucination** and a **pseudohallucination**, one must look at the **location** of the perception and the **subjective conviction** of the patient. ### **Explanation of the Correct Answer** The defining difference lies in the **spatial location (External objective space)**. * **Hallucinations** are perceived as occurring in **outer objective space** (e.g., hearing a voice coming from the garden). They possess the same vividness and "concrete reality" as a true sense perception. * **Pseudohallucinations** are perceived as occurring in **inner subjective space** (e.g., hearing a voice "inside the head" or seeing an image in the "mind's eye"). ### **Analysis of Incorrect Options** * **A. Disorder of perception:** Both are considered disorders of perception (specifically sensory distortions/deceptions), so this does not differentiate them. * **B. Absence of real stimulus:** This is a **shared feature**. Both hallucinations and pseudohallucinations occur in the absence of an external stimulus (unlike illusions, which require a stimulus). * **C. Involuntary:** Both experiences are **involuntary** and cannot be conjured or dismissed at will by the patient. ### **NEET-PG High-Yield Pearls** * **Insight:** In pseudohallucinations, insight is often preserved (the patient realizes the perception is not "real"), whereas in true hallucinations, insight is typically absent. * **Jasper’s Criteria for Hallucination:** 1. As vivid as a real perception, 2. Occurs in external space, 3. Involuntary. * **Clinical Context:** Pseudohallucinations are frequently seen in **Dissociative disorders**, personality disorders, or during bereavement, whereas true hallucinations are hallmark features of **Schizophrenia** and **Psychotic Depression**. * **Hypnagogic/Hypnopompic** phenomena are technically "physiological hallucinations" but are often experienced as pseudohallucinations.

Q: A 40-year-old woman presents with a complaint of abnormal behavior. During the interview, she laughs and cries spontaneously over very short periods. Her affect is best described as?

Labile affect. ### Explanation **Correct Option: D. Labile affect** The patient is demonstrating **affective lability**. In psychiatry, "affect" refers to the external, observable expression of an individual's internal emotional state. **Labile affect** is characterized by rapid, abrupt, and significant shifts in emotional expression (e.g., moving from laughter to tears within seconds or minutes) that are often disproportionate to external stimuli. This is commonly seen in conditions like Bipolar Disorder (manic episodes), Borderline Personality Disorder, Histrionic Personality Disorder, and organic brain syndromes (Pseudobulbar affect). **Analysis of Incorrect Options:** * **A. Apathy:** This refers to a lack of feeling, emotion, interest, or concern. It is a state of indifference rather than a shift in emotions. * **B. Blunted affect:** This is a significant reduction in the intensity of emotional expression. The patient’s face may remain relatively immobile and their voice monotonous. It is a "negative symptom" frequently seen in Schizophrenia. * **C. Euthymic affect:** This represents a "normal" or stable range of mood and affect, implying the absence of depressed or elevated states. **NEET-PG High-Yield Pearls:** * **Affect vs. Mood:** Mood is the pervasive, sustained internal emotional "climate" (subjective), while affect is the fluctuating emotional "weather" (objective/observed). * **Incongruent Affect:** When the emotional expression does not match the content of the patient's speech (e.g., laughing while describing a tragedy). * **Flat Affect:** The most severe form of blunting where there is virtually no expression of emotion; classic in chronic Schizophrenia. * **Pseudobulbar Affect (PBA):** Pathological laughing and crying due to neurological damage (e.g., Stroke, ALS, MS), often mistaken for a primary mood disorder.

Q: Jamais vu is:

A feeling of strangeness in a familiar situation. **Explanation:** **Jamais vu** (French for "never seen") is a phenomenon of **paramnesia** characterized by a false sense of unfamiliarity. It occurs when an individual encounters a situation, person, or place that is objectively familiar but feels completely strange or new. In psychiatric practice, it is often associated with temporal lobe epilepsy, migraines, or dissociative disorders. **Analysis of Options:** * **Option D (Correct):** This accurately describes Jamais vu—the subjective feeling that a well-known situation is being experienced for the first time. * **Option A (Incorrect):** This describes **Déjà entendu** ("already heard"), where a person feels they have heard a specific sound or conversation before, despite no prior evidence. * **Option B (Incorrect):** This refers to **Déjà pensé** ("already thought"), where a novel idea is mistakenly perceived as a past thought. * **Option C (Incorrect):** This describes **Déjà vu** ("already seen"), which is the opposite of Jamais vu. It is the illusion of familiarity in a completely new situation. **Clinical Pearls for NEET-PG:** * **Déjà vu and Jamais vu** are both "disturbances of memory" (specifically paramnesias) and are frequently seen as **auras in Temporal Lobe Epilepsy (TLE)**. * While occasional Déjà vu is common in healthy individuals (especially during stress or fatigue), frequent **Jamais vu** is more clinically significant and more strongly associated with neurological pathology. * **Confabulation** is another high-yield paramnesia, but unlike the "vu" phenomena, it involves filling memory gaps with fabricated stories, typically seen in Korsakoff’s psychosis.

Q: What is nihilistic delusion?

A false belief that the world is about to end.. **Explanation** **Nihilistic delusion** (also known as delusion of negation) is a psychopathological state where a patient believes that they, a part of their body, or the external world no longer exists or is about to cease existing. The correct answer is **C** because the belief that the world is coming to an end is a classic manifestation of nihilistic thinking. **Analysis of Options:** * **Option A:** This describes a **delusion of guilt**, commonly seen in severe depressive episodes where patients feel responsible for catastrophes or minor past transgressions. * **Option B:** This refers to **hypochondriacal delusions** (somatic delusions), where the patient is convinced they have a specific disease (e.g., cancer or HIV) despite negative medical evidence. * **Option D:** This is the definition of **Ekbom’s syndrome** (delusional parasitosis), often associated with tactile hallucinations (formication). **Clinical Pearls for NEET-PG:** 1. **Cotard’s Syndrome:** This is the extreme form of nihilistic delusion where a patient claims they are "dead," "rotting," or have "lost their internal organs." 2. **Diagnostic Association:** While nihilistic delusions can occur in schizophrenia, they are most characteristically associated with **Psychotic Depression** (especially in the elderly). 3. **Key Distinction:** Do not confuse nihilism with *suicidal ideation*; while both occur in depression, nihilism is a formal thought content disorder involving the denial of existence. 4. **Management:** Severe cases with Cotard’s syndrome often require **Electroconvulsive Therapy (ECT)** due to the high risk of self-neglect and refusal to eat.

Q: Alexithymia is:

Inability to recognise and describe feelings. **Explanation:** **Alexithymia** is a personality construct characterized by a subclinical inability to identify and describe emotions in oneself. The term literally translates from Greek as *"no words for emotions"* (a- "lack", lexis- "word", thymos- "emotion"). 1. **Why Option D is Correct:** Individuals with alexithymia have difficulty distinguishing between emotional states and the bodily sensations of emotional arousal. They often exhibit "externally oriented thinking," focusing on objective events rather than internal experiences. It is frequently associated with psychosomatic disorders, PTSD, and Autism Spectrum Disorder. 2. **Why Other Options are Incorrect:** * **Option A (Intense rapture):** This describes **Ecstasy**, a state of extreme happiness or altered consciousness often seen in manic episodes or certain psychotic states. * **Option B (Pathological sadness):** This is the definition of **Depression** or **Melancholia**, where the sadness is pervasive, persistent, and out of proportion to the circumstances. * **Option C (Affective flattening):** This refers to a restricted range of emotional expression (a "negative symptom" of Schizophrenia), where the *outward display* of emotion is absent, whereas alexithymia is a deficit in the *internal processing* and naming of emotions. **High-Yield Clinical Pearls for NEET-PG:** * **Sifneos (1973):** The psychiatrist who coined the term Alexithymia. * **Toronto Alexithymia Scale (TAS-20):** The most commonly used psychometric tool to measure this construct. * **Clinical Association:** It is a significant risk factor for **Somatization**, as patients may present with physical complaints because they cannot articulate their psychological distress.

Q: A first-year psychiatric resident is interviewing a patient. Which of the following is the better test for recent memory?

What the patient had for their last meal. ### Explanation Memory is clinically assessed by dividing it into three categories: immediate, recent, and remote. **1. Why Option D is Correct:** **Recent memory** refers to the ability to recall information or events from the past few hours to a few days. Asking a patient what they had for their **last meal** (or what happened in the news over the last 24 hours) is a classic bedside test for recent memory. It requires the brain to encode new information and retrieve it after a short interval. **2. Analysis of Incorrect Options:** * **Option A (Serial 7s):** This is a test of **attention and concentration**, not memory. It requires sustained mental effort and arithmetic skill. * **Option B & C (Place of birth / Number of siblings):** These are tests of **remote memory**. Remote memory involves the recall of information from the distant past (years ago). These facts are usually well-consolidated and are often the last to be lost in progressive dementias. **3. Clinical Pearls for NEET-PG:** * **Immediate Memory:** Tested by "Digit Span" (asking the patient to repeat a sequence of numbers forward and backward). It lasts for seconds. * **Recent Memory:** Often the first to be impaired in **Dementia** (e.g., Alzheimer’s) and **Wernicke-Korsakoff Syndrome**. * **Anterograde Amnesia:** Inability to form new memories (recent memory deficit). * **Retrograde Amnesia:** Loss of memories established before the onset of injury (remote memory deficit). * **Confabulation:** A hallmark of Korsakoff psychosis where the patient fills in gaps in recent memory with fabricated stories.

Q: All are formal thought disorders except?

Obsessive compulsive neurosis. ### Explanation The core of this question lies in distinguishing between **disorders of the form of thought** (Formal Thought Disorders) and **disorders of the content of thought**. **1. Why "Obsessive Compulsive Neurosis" is the correct answer:** Obsessive-Compulsive Disorder (OCD) is primarily a **disorder of thought content**. In OCD, the patient experiences obsessions—persistent, intrusive, and ego-dystonic ideas, images, or impulses. While the *content* is pathological, the logical structure and flow of the thought process remain intact. Therefore, it is not classified as a formal thought disorder (FTD). **2. Analysis of Incorrect Options (Formal Thought Disorders):** Formal Thought Disorders (FTDs) involve a breakdown in the logical connection between ideas or the speed and flow of thinking. * **Flight of Ideas:** Characterized by rapid shifting from one idea to another, usually connected by rhymes, puns, or environmental stimuli (seen typically in **Mania**). * **Circumstantiality:** The patient includes excessive, unnecessary detail before eventually reaching the goal of the thought. * **Loosening of Association (Knight’s Move Thinking):** A hallmark of **Schizophrenia**, where there is a lack of logical connection between successive thoughts, making the speech incoherent. ### NEET-PG Clinical Pearls * **Thought Content Disorders:** Include Delusions, Obsessions, Phobias, and Overvalued ideas. * **Thought Form (FTD) Disorders:** Include Derailment, Tangentiality, Neologisms, and Word Salad. * **Circumstantiality vs. Tangentiality:** In circumstantiality, the patient eventually reaches the goal; in tangentiality, they never return to the original point. * **Pressure of Speech:** Often accompanies Flight of Ideas in manic episodes.

Question 1

Which of the following differentiates pseudohallucination from hallucination?

Accepted Answer

External objective space

Answer

Disorder of perception

Answer

Absence of real stimulus

Answer

Involuntary

Question 2

A 40-year-old woman presents with a complaint of abnormal behavior. During the interview, she laughs and cries spontaneously over very short periods. Her affect is best described as?

Accepted Answer

Labile affect

Answer

Apathy

Answer

Blunted affect

Answer

Euthymic affect

Question 3

Jamais vu is:

Accepted Answer

A feeling of strangeness in a familiar situation

Answer

The illusion that what one is hearing, one has heard previously

Answer

An unfamiliar thought regarded as a repetition of a previous thought

Answer

Unfamiliar situations or events feel strangely familiar

Question 4

What is nihilistic delusion?

Accepted Answer

A false belief that the world is about to end.

Answer

A false feeling of remorse or guilt.

Answer

A false belief about having a severe medical illness.

Answer

A false belief that one is infested with small but visible organisms.

Question 5

Alexithymia is:

Accepted Answer

Inability to recognise and describe feelings

Answer

A feeling of intense rapture

Answer

Pathological sadness

Answer

Affective flattening

Question 6

A first-year psychiatric resident is interviewing a patient. Which of the following is the better test for recent memory?

Accepted Answer

What the patient had for their last meal

Answer

Subtract 7 from 100 and continue subtracting by 7

Answer

Patient's place of birth

Answer

Number of siblings the patient has

Question 7

Anhedonia is:

Accepted Answer

Inability to experience pleasure from normally pleasurable life events

Answer

Abnormal lack of activity

Answer

Coexistence of two opposing impulses toward the same thing in the same person

Answer

Disturbance in the understanding or expression of language

Question 8

All are formal thought disorders except?

Accepted Answer

Obsessive compulsive neurosis

Answer

Flight of ideas

Answer

Circumstantiality

Answer

Loosening of association

Question 9

For the following causes of sexual dysfunction, select the most likely clinical feature.

Accepted Answer

absence of orgasm with normal libido and erectile function

Answer

loss of sexual desire

Answer

failure of erection with absent nocturnal penile tumescence (NPT)

Answer

absence of emission

Question 10

A 16-year-old female presents with recurrent abdominal pain, but biochemical assays and ultrasound of the abdomen are normal. After waking up from sleep, she suddenly complains of loss of vision in both eyes. An ophthalmologist finds nothing on examination. This condition is most probably due to which of the following?

Accepted Answer

Malingering

Answer

Bilateral optic neuritis

Answer

Posterior cerebellar artery infarct

Answer

Occipital hemorrhage

Psychiatric Assessment and Diagnosis — MCQs

Psychiatric Assessment and Diagnosis — MCQs

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