Psychotic Disorders — MCQs

Psychotic Disorders Indian Medical PG Practice Questions and MCQs

Question 321: A husband suspects his wife is having an affair with another man. What is the diagnosis?

A. Delusion (Correct Answer)
B. Perception
C. Hallucination
D. Amotivation

Explanation: **Explanation:** The correct answer is **Delusion**. A **delusion** is defined as a false, fixed belief that is firmly held despite incontrovertible evidence to the contrary and is not in keeping with the patient’s socio-cultural or educational background. In this scenario, the husband’s unfounded suspicion of his wife’s infidelity is a classic example of a **Delusion of Infidelity** (also known as **Conjugal Paranoia** or **Othello Syndrome**). This is a disorder of the **content of thought**. **Why other options are incorrect:** * **Perception:** This is the process of interpreting sensory stimuli. While delusions involve a misinterpretation of reality, they are categorized as thought disorders, not basic perceptual processes. * **Hallucination:** This is a sensory perception in the absence of an external stimulus (e.g., hearing voices when no one is speaking). It is a disorder of **perception**, whereas the husband’s suspicion is a belief-based issue. * **Amotivation:** This refers to a lack of drive or motivation to participate in activities. It is a "negative symptom" often seen in Schizophrenia, but it does not describe a false belief system. **Clinical Pearls for NEET-PG:** * **Othello Syndrome:** Specifically refers to a morbid delusion of infidelity, often associated with chronic alcoholism or organic brain disorders. * **Primary vs. Secondary Delusion:** A primary delusion (autochthonous) arises suddenly without a preceding mental event, while a secondary delusion is understandable in the context of other symptoms (like mood or hallucinations). * **De Clerambault’s Syndrome:** Also known as **Erotomania**, where the patient believes a person of higher status is in love with them. * **Capgras Syndrome:** The delusion that a familiar person has been replaced by an identical-looking impostor.

Question 322: Which of the following contributions is attributed to T.J. Crow?

A. Coined the term "Dementia Praecox"
B. Described the 11 First Rank Symptoms
C. Divided Schizophrenia into Type I and Type II (Correct Answer)
D. Described the 4 'A's of Schizophrenia

Explanation: ### Explanation **Correct Option: C (Divided Schizophrenia into Type I and Type II)** T.J. Crow proposed a binary classification of Schizophrenia based on clinical features, treatment response, and underlying pathophysiology: * **Type I (Positive Syndrome):** Characterized by positive symptoms (hallucinations, delusions). It is associated with **increased dopamine receptor sensitivity**, a good response to neuroleptics, and a better prognosis. * **Type II (Negative Syndrome):** Characterized by negative symptoms (affective flattening, poverty of speech, loss of drive). It is associated with **structural brain changes** (e.g., ventricular enlargement), poor response to neuroleptics, and a poorer prognosis. **Analysis of Incorrect Options:** * **A. Coined the term "Dementia Praecox":** This was done by **Benedict Morel**. However, the term was popularized and extensively described by **Emil Kraepelin**, who differentiated it from Manic Depressive Psychosis. * **B. Described the 11 First Rank Symptoms (FRS):** These were described by **Kurt Schneider**. FRS are specific symptoms (like third-person hallucinations or somatic passivity) that were historically used to diagnose schizophrenia in the absence of organic brain disease. * **D. Described the 4 'A's of Schizophrenia:** This was the contribution of **Eugen Bleuler** (who also coined the term "Schizophrenia"). The 4 'A's are: **A**ffective blunting, **A**mbivalence, **A**utism, and **A**ssociative looseness. **High-Yield Clinical Pearls for NEET-PG:** * **Eugen Bleuler:** Coined "Schizophrenia" and divided symptoms into **Fundamental** (4 'A's) and **Accessory** (Hallucinations/Delusions). * **Kurt Schneider:** Shifted focus to **First Rank Symptoms** (FRS). Note: FRS are no longer mandatory for diagnosis in DSM-5. * **Crow’s Type II** is often linked to "Cognitive impairment," which is now considered a core feature of the disorder.

Question 323: What is the most common subtype of schizophrenia?

A. Simple type
B. Hebephrenic type
C. Catatonic type
D. Paranoid type (Correct Answer)

Explanation: **Explanation:** **Paranoid Schizophrenia** is the most common subtype of schizophrenia worldwide. It is characterized primarily by stable, systematized delusions (usually persecutory or grandiose) and auditory hallucinations. Unlike other subtypes, patients often exhibit relatively preserved cognitive functions and affect, which contributes to a later age of onset and a better overall prognosis regarding social and occupational functioning. **Analysis of Incorrect Options:** * **Simple Schizophrenia:** This is the rarest subtype. It is characterized by the early onset of negative symptoms (apathy, social withdrawal) without prominent hallucinations or delusions. It carries a very poor prognosis. * **Hebephrenic (Disorganized) Schizophrenia:** Characterized by disorganized speech, disorganized behavior, and flat or inappropriate affect. It typically has an early onset (puberty) and a poor prognosis. * **Catatonic Schizophrenia:** Characterized by marked psychomotor disturbances (stupor, waxy flexibility, or purposeless excitement). While classic in textbooks, its prevalence has significantly decreased in modern clinical practice due to early intervention. **High-Yield Clinical Pearls for NEET-PG:** * **Prognosis:** Paranoid type has the **best prognosis**, while Simple and Hebephrenic types have the **worst prognosis**. * **ICD-11 & DSM-5 Update:** It is crucial to note that modern classification systems (DSM-5 and ICD-11) have **removed** these clinical subtypes because they were found to be unstable over time and lacked diagnostic specificity. However, they remain high-yield for competitive exams. * **Age of Onset:** Paranoid schizophrenia typically presents later (25–35 years) compared to the Hebephrenic type (15–25 years).

Question 324: Mutism is a recognized feature of which of the following conditions?

A. Ganser syndrome
B. Conversion hysteria
C. Catatonic schizophrenia
D. All of the above (Correct Answer)

Explanation: **Explanation:** Mutism is the complete absence of speech in a conscious patient. It is a trans-diagnostic symptom that can manifest in psychiatric, neurological, and dissociative disorders. **Why "All of the above" is correct:** * **Ganser Syndrome:** Also known as "approximate answers" or "prison psychosis," this is a rare dissociative disorder. Patients often exhibit **selective mutism**, clouding of consciousness, and hallucinations, typically seen in forensic settings. * **Conversion Hysteria (Dissociative Motor Disorder):** In conversion disorders, psychological distress is manifested as physical symptoms. **Hysterical mutism** occurs when a patient loses the ability to speak despite having intact vocal cords and neurological pathways, usually following a stressful event. * **Catatonic Schizophrenia:** Mutism is one of the classic features of catatonia (along with stupor, waxy flexibility, and negativism). In this state, the patient is conscious but unresponsive and does not initiate speech. **Clinical Pearls for NEET-PG:** * **Selective Mutism:** Most commonly seen in children who speak in familiar settings (home) but remain silent in others (school). It is now classified under **Anxiety Disorders** in DSM-5. * **Akinetic Mutism:** A neurological condition (often due to frontal lobe or midbrain lesions) where the patient lacks the drive to move or speak despite being awake. * **Elective Mutism:** An older term for Selective Mutism. * **Management:** For Catatonic mutism, **Lorazepam** (Benzodiazepines) is the first-line treatment (Lorazepam Challenge Test), followed by ECT if refractory. For Conversion mutism, psychotherapy and stress management are key.

Question 325: Which is the first symptom to improve with the treatment of schizophrenia?

A. Apathy
B. Anhedonia
C. Auditory hallucination (Correct Answer)
D. Paucity of thoughts

Explanation: **Explanation:** In the pharmacological management of Schizophrenia, symptoms are broadly categorized into **Positive symptoms** (hallucinations, delusions, disorganized behavior) and **Negative symptoms** (apathy, anhedonia, alogia). The correct answer is **Auditory hallucination** because antipsychotic medications (D2 receptor antagonists) are significantly more effective and faster at resolving positive symptoms than negative symptoms. Among positive symptoms, agitation and sleep disturbances often improve first, followed closely by the reduction in the intensity and frequency of hallucinations and delusions. **Analysis of Options:** * **Auditory Hallucination (Correct):** As a "Positive Symptom" mediated by mesolimbic dopamine hyperactivity, it responds relatively quickly to antipsychotic intervention. * **Apathy, Anhedonia, and Paucity of thoughts (Incorrect):** These are "Negative Symptoms." Negative symptoms are associated with decreased dopaminergic activity in the mesocortical pathway and structural brain changes. They are notoriously resistant to typical antipsychotics and show only marginal, slow improvement with atypical antipsychotics. **NEET-PG High-Yield Pearls:** * **Order of Improvement:** Positive symptoms (Hallucinations/Delusions) improve **before** Negative symptoms (Apathy/Withdrawal). * **Prognostic Indicator:** The presence of predominant negative symptoms at the time of diagnosis is a predictor of a **poor prognosis**. * **Treatment Resistance:** If a patient does not respond to two different antipsychotic trials (one being atypical), **Clozapine** is the drug of choice. * **Most Common Hallucination:** Auditory hallucinations are the most common type in Schizophrenia; if visual hallucinations predominate, always rule out organic causes/delirium.

Question 326: What is the time interval between the onset of acute and persistent psychotic disease?

A. 1 week
B. 2 weeks
C. 3 weeks
D. 1 month (Correct Answer)

Explanation: ### Explanation The classification of psychotic disorders is primarily based on the **duration of symptoms**. In both the ICD-11 and DSM-5, the one-month mark is the critical diagnostic threshold that separates acute/transient psychotic episodes from more persistent conditions. **1. Why 1 Month is Correct:** According to the DSM-5, a **Brief Psychotic Disorder** is defined by symptoms lasting at least one day but **less than one month**, with an eventual full return to premorbid functioning. Once symptoms persist beyond **one month**, the diagnosis must be changed to **Schizophreniform Disorder** (which lasts 1–6 months) or eventually **Schizophrenia** (if symptoms persist for more than 6 months). Therefore, one month is the defining interval between an acute episode and a persistent disease process. **2. Why Other Options are Incorrect:** * **1 Week / 2 Weeks:** While some ICD-10 criteria for "Acute and Transient Psychotic Disorder" (ATPD) mention a 2-week crescendo for symptom onset, these are not the standard intervals used to differentiate acute from persistent disease categories. * **3 Weeks:** This duration holds no specific diagnostic significance in the classification of psychotic disorders in major psychiatric manuals. **3. High-Yield Clinical Pearls for NEET-PG:** * **Brief Psychotic Disorder:** Duration < 1 month. Often triggered by a severe stressor (Brief Reactive Psychosis). * **Schizophreniform Disorder:** Duration > 1 month but < 6 months. * **Schizophrenia:** Duration > 6 months (DSM-5) or > 1 month (ICD-11). * **Prognosis:** Brief psychotic disorder has the best prognosis, often characterized by a sudden onset and rapid resolution. * **Key Symptom Triad:** Delusions, Hallucinations, and Disorganized speech are the "core" positive symptoms required for these diagnoses.

Question 327: Good prognosis in schizophrenia is indicated by?

A. Soft neurological signs
B. Affective symptoms (Correct Answer)
C. Emotional blunting
D. Insidious onset

Explanation: **Explanation:** Prognosis in schizophrenia is determined by several clinical factors that predict the long-term outcome and response to treatment. **Why Affective Symptoms are Correct:** The presence of **affective symptoms** (mood symptoms like depression or mania) is a strong indicator of a **good prognosis**. This is because patients with prominent mood features often have a "schizoaffective" presentation, which typically responds better to treatment and has a more episodic course compared to the chronic, deteriorating course of pure schizophrenia. **Analysis of Incorrect Options:** * **Soft Neurological Signs (A):** These are subtle impairments in sensory integration or motor coordination (e.g., dysdiadochokinesia). Their presence indicates underlying neurodevelopmental brain damage and is associated with a **poor prognosis**. * **Emotional Blunting (C):** This is a "Negative Symptom." Negative symptoms (apathy, anhedonia, poverty of speech) are notoriously resistant to antipsychotic medication and signify a **poor prognosis**. * **Insidious Onset (D):** A slow, gradual onset of symptoms usually means the disease has been progressing unnoticed for years, leading to significant social and cognitive decline. An **acute/sudden onset** is a feature of a **good prognosis**. **High-Yield Clinical Pearls for NEET-PG:** | **Good Prognostic Factors** | **Poor Prognostic Factors** | | :--- | :--- | | Late onset (older age) | Young/Early onset | | Acute/Sudden onset | Insidious/Gradual onset | | Obvious precipitating stressors | No clear stressors | | **Presence of Mood/Affective symptoms** | **Negative symptoms** (Blunting, etc.) | | Good premorbid adjustment | Poor premorbid history (socially isolated) | | Married/Strong social support | Single, divorced, or widowed | | Positive symptoms (Hallucinations/Delusions) | Structural brain changes (Enlarged ventricles) | | Female gender | Male gender |

Question 328: Schizophrenia mostly occurs in which age group?

A. Adolescents (Correct Answer)
B. Children
C. Middle age
D. Old age

Explanation: **Explanation:** Schizophrenia is a chronic and severe mental disorder characterized by distortions in thinking, perception, emotions, and behavior. The peak age of onset is typically in **late adolescence and early adulthood** (usually between ages 15 and 25 for males and 25 to 35 for females). This period coincides with critical neurodevelopmental changes and synaptic pruning in the prefrontal cortex. * **Adolescents (Correct):** Most cases manifest in the late teens or early twenties. While the prodromal phase may start earlier, the first psychotic episode typically occurs during this transition into adulthood. * **Children:** Childhood-onset schizophrenia (onset before age 13) is extremely rare and often presents with more severe neurocognitive deficits and a poorer prognosis. * **Middle age:** While "Late-onset Schizophrenia" can occur (after age 40), it is less common and more frequently seen in females. * **Old age:** Onset after age 60 is termed "Very-late-onset schizophrenia-like psychosis" and is rare, often requiring the exclusion of neurodegenerative diseases like dementia. **Clinical Pearls for NEET-PG:** 1. **Gender Dimorphism:** Males have an earlier onset (15–25 years) and a poorer prognosis compared to females (25–35 years), who often show a second peak of onset post-menopause. 2. **Schneider’s First Rank Symptoms (FRS):** These are diagnostic hallmarks, including audible thoughts, voices arguing/commenting, and thought withdrawal/insertion. 3. **Prognosis:** Good prognostic factors include late onset, female sex, presence of precipitating factors, and predominant positive symptoms. 4. **Dopamine Hypothesis:** Schizophrenia is primarily associated with increased dopaminergic activity in the mesolimbic pathway (positive symptoms) and decreased activity in the mesocortical pathway (negative symptoms).

Question 329: Which of the following hypotheses was initially proposed for the etiology of schizophrenia?

A. Serotonin Hypothesis
B. Dopamine hypothesis (Correct Answer)
C. Learned helplessness
D. Cognitive theory

Explanation: **Explanation:** The **Dopamine Hypothesis** is the most established and historically significant biochemical theory regarding the etiology of schizophrenia. It was initially proposed based on two key clinical observations: 1. **Dopamine Agonists:** Drugs like amphetamines, which increase synaptic dopamine, can induce paranoid psychosis in healthy individuals or exacerbate symptoms in patients with schizophrenia. 2. **Dopamine Antagonists:** The efficacy of first-generation antipsychotics (e.g., Chlorpromazine, Haloperidol) is directly proportional to their potency in blocking **D2 receptors**. The hypothesis suggests that schizophrenia results from **hyperactivity of dopaminergic transmission** in specific brain pathways—specifically, excess dopamine in the **mesolimbic pathway** (linked to positive symptoms) and a deficit in the **mesocortical pathway** (linked to negative and cognitive symptoms). **Analysis of Incorrect Options:** * **Serotonin Hypothesis:** While serotonin (5-HT) plays a role in the mechanism of *atypical* (second-generation) antipsychotics (5-HT2A antagonism), it was not the primary initial hypothesis for schizophrenia. It is more central to the pathophysiology of mood disorders. * **Learned Helplessness:** This is a psychological model for **Depression**, proposed by Martin Seligman, where repeated exposure to uncontrollable stressors leads to a state of passivity. * **Cognitive Theory:** Proposed by Aaron Beck, this theory focuses on "cognitive triads" and distorted thinking patterns primarily associated with **Depression and Anxiety**, not the primary etiology of schizophrenia. **High-Yield Clinical Pearls for NEET-PG:** * **Mesolimbic Pathway:** Increased Dopamine → **Positive symptoms** (Hallucinations, Delusions). * **Mesocortical Pathway:** Decreased Dopamine → **Negative symptoms** (Apathy, Alogia, Affective flattening). * **Nigrostriatal Pathway:** Blockade here leads to **Extrapyramidal Side Effects (EPS)**. * **Tuberoinfundibular Pathway:** Blockade here leads to **Hyperprolactinemia**.

Question 330: Who described the Four A's of schizophrenia?

A. Ku Schneider
B. Eugene Bleuler (Correct Answer)
C. Karl Jaspers
D. Emil Kraepelin

Explanation: **Explanation:** The correct answer is **Eugene Bleuler**. In 1911, the Swiss psychiatrist Eugene Bleuler coined the term "Schizophrenia" (meaning "split mind") to replace Kraepelin’s "Dementia Praecox." He proposed that the core of the disorder was a splitting of psychic functions. He described the **Four A’s**, which he considered the primary (fundamental) symptoms of the disease: 1. **Affective Blunting:** Flattened or inappropriate emotional response. 2. **Loosening of Associations:** Disorganized thought patterns where ideas are unrelated. 3. **Ambivalence:** Coexisting conflicting emotions or impulses toward the same object. 4. **Autism:** Social withdrawal and preference for a private fantasy world. **Analysis of Incorrect Options:** * **Kurt Schneider:** Known for **First Rank Symptoms (FRS)** of schizophrenia (e.g., auditory hallucinations, thought broadcast), which are used in modern diagnostic criteria like ICD-10. * **Emil Kraepelin:** Distinguished "Dementia Praecox" (early-onset cognitive decline) from manic-depressive psychosis. He focused on the deteriorating course of the illness. * **Karl Jaspers:** A philosopher and psychiatrist known for his work on **Phenomenology** and the "General Psychopathology," emphasizing the subjective experience of the patient. **High-Yield Clinical Pearls for NEET-PG:** * **Bleuler’s 4 A’s** are considered *fundamental* symptoms, while hallucinations and delusions were considered *accessory* symptoms by him. * **Schneider’s FRS** are highly specific but not pathognomonic (they can occur in organic psychosis or bipolar disorder). * **Simple Schizophrenia** was also added to the classification by Bleuler.

Practice by Chapter

Schizophrenia: Epidemiology and Etiology

Practice Questions

Schizophrenia: Clinical Features

Practice Questions

Schizophrenia: Treatment

Practice Questions

Schizoaffective Disorder

Practice Questions

Delusional Disorders

Practice Questions

Brief Psychotic Disorder

Practice Questions

Substance-Induced Psychotic Disorders

Practice Questions

Psychosis in Medical Conditions

Practice Questions

First Episode Psychosis

Practice Questions

Treatment-Resistant Psychosis

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Rehabilitation in Psychotic Disorders

Practice Questions

Outcome and Prognosis

Practice Questions

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