Psychotic Disorders — MCQs

A 25-year-old university student had a fight with a neighbor. On the next day, while out, he felt that two men in police uniform were observing his movements. When he reached home in the evening, he was frightened and expressed that the police were after him and would arrest him. His symptoms represent which of the following?

Q285Medium

Which of the following is not considered a first-rank symptom of Schizophrenia?

Q286Easy

Depressive delusions that the world and everything related to it cease to exist is called?

Q287Easy

Which of the following is an example of a bizarre delusion?

Q288Medium

Which type of schizophrenia is characterized by late onset and a good prognosis?

Q289Medium

Which of the following statements regarding schizophrenia and delusional disorder is FALSE?

Q290Easy

What is the definition of treatment-resistant schizophrenia (TRS)?

Psychotic Disorders Indian Medical PG Practice Questions and MCQs

Question 281: Delusion of infidelity is seen in which of the following syndromes?

A. Othello syndrome (Correct Answer)
B. Dechlerambault syndrome
C. Magnan syndrome
D. Cotard syndrome

Explanation: **Explanation:** **1. Correct Option: Othello Syndrome (A)** Othello syndrome, also known as **pathological jealousy** or **morbid jealousy**, is characterized by a persistent and false belief (delusion) that one’s spouse or partner is being unfaithful. It is a form of delusional disorder (jealous type). Patients often go to extreme lengths to find "evidence" of infidelity, such as checking phone logs, stalking, or interrogating their partner. It is frequently associated with chronic alcoholism and carries a high risk of domestic violence. **2. Incorrect Options:** * **De Clérambault Syndrome (B):** Also known as **Erotomania**. The patient (usually female) holds a delusional belief that another person, typically of higher social status or a celebrity, is deeply in love with them. * **Magnan Syndrome (C):** This refers to **Cocaine-induced psychosis**, specifically characterized by tactile hallucinations known as "formication" or "cocaine bugs" (the sensation of insects crawling under the skin). * **Cotard Syndrome (D):** Also known as **Walking Corpse Syndrome** or **Nihilistic delusion**. The patient believes they are dead, do not exist, or that their internal organs have rotted away. It is most commonly seen in severe psychotic depression. **Clinical Pearls for NEET-PG:** * **Capgras Syndrome:** The belief that a familiar person has been replaced by an identical-looking impostor (the most common "misidentification syndrome"). * **Fregoli Syndrome:** The belief that different people are actually a single person in disguise. * **Ekbom Syndrome:** Delusional parasitosis (belief that one is infested with parasites). * **Othello Syndrome** is most strongly linked with **Alcohol Dependence Syndrome**.

Question 282: What is considered a major psychosis?

A. Neurosis
B. Dementia
C. Reactive depression
D. Endogenous depression (Correct Answer)

Explanation: ### Explanation In psychiatry, disorders are traditionally classified into **Neurosis** and **Psychosis**. The hallmark of a **Major Psychosis** is the loss of contact with reality, lack of insight, and significant personality disintegration. **Why Endogenous Depression is the Correct Answer:** Endogenous depression (now often categorized under Major Depressive Disorder with melancholic or psychotic features) is considered a major psychosis because it arises from internal biological/genetic factors rather than external stressors. In severe cases, it involves a complete loss of insight and may be accompanied by psychotic features like delusions (e.g., nihilistic delusions) or hallucinations, fitting the criteria for a "functional psychosis" alongside Schizophrenia and Bipolar Disorder. **Analysis of Incorrect Options:** * **A. Neurosis:** These are mild mental disorders (e.g., Anxiety, OCD, Phobias) where contact with reality and insight are **preserved**. There is no gross personality reorganization. * **B. Dementia:** This is classified as an **Organic Mental Disorder** (specifically a neurocognitive disorder). While it can have psychotic symptoms, it is primarily characterized by global cognitive decline rather than being a primary functional psychosis. * **C. Reactive Depression:** Also known as exogenous depression, this is a response to a stressful life event. It is generally considered a **neurotic** illness because the patient retains insight and reality testing. **High-Yield Clinical Pearls for NEET-PG:** * **Insight:** The single most important factor distinguishing Psychosis (Absent) from Neurosis (Present). * **Functional Psychoses:** Traditionally include Schizophrenia, Mood Disorders (like Endogenous Depression/Mania), and Delusional Disorders. * **Organic Psychoses:** Result from identifiable brain pathology or systemic illness (e.g., Delirium, Dementia). * **Nihilistic Delusions (Cotard Syndrome):** Highly specific to severe endogenous/psychotic depression.

Question 283: The "WurgStimme" sign refers to?

A. Speaking with an odd, muffled, or strangled voice, as seen in schizophrenia. (Correct Answer)
B. Speaking with an odd, muffled, or strangled voice, as seen in mania.
C. Areas of hair loss with broken hair, as seen in schizophrenia.
D. Areas of hair loss with broken hair, as seen in mania.

Explanation: **Explanation:** **WurgStimme** (German for "strangled voice") is a classic psychopathological sign historically described in patients with **Schizophrenia**, particularly the catatonic or disorganized subtypes. It refers to a phenomenon where the patient speaks in an odd, muffled, or "strangled" tone, as if they are being choked or are struggling to force the words out. This is considered a form of **mannerism** or a motor abnormality of speech, reflecting the underlying fragmentation of thought and motor control seen in the disorder. **Analysis of Options:** * **Option A (Correct):** Accurately defines the sign and correctly associates it with Schizophrenia. It is a behavioral oddity where the vocal quality itself is distorted without a primary laryngeal pathology. * **Option B (Incorrect):** While manic patients exhibit pressured speech or "clanging," they do not typically display the strangled, muffled quality of WurgStimme; their speech is usually loud and rapid. * **Option C & D (Incorrect):** These options describe **Trichotillomania** (hair-pulling disorder), which is characterized by irregular patches of hair loss and broken shafts. This is an impulse control disorder, not WurgStimme. **Clinical Pearls for NEET-PG:** * **WurgStimme** is often grouped with other "speech mannerisms" in Schizophrenia, such as **stilted speech** (overly formal/pompous) or **verbigeration** (senseless repetition of words). * **Mannerisms** are purposeful movements that are carried out in an exaggerated or bizarre fashion (e.g., an odd way of saluting). * **Stereotypies** are repetitive, non-goal-directed movements (e.g., rocking back and forth). * Remember: WurgStimme = **Strangled Voice** = **Schizophrenia**.

Question 284: A 25-year-old university student had a fight with a neighbor. On the next day, while out, he felt that two men in police uniform were observing his movements. When he reached home in the evening, he was frightened and expressed that the police were after him and would arrest him. His symptoms represent which of the following?

A. Delusion of persecution (Correct Answer)
B. Ideas of reference
C. Passivity
D. Thought insertion

Explanation: ### Explanation **1. Why "Delusion of Persecution" is correct:** A **delusion** is a fixed, false belief that is out of keeping with the patient’s social and cultural background and is held with absolute conviction despite contrary evidence. In this case, the student believes he is being followed and will be arrested by the police. This is a **Delusion of Persecution**, where the individual believes that harm is occurring or is going to occur, and that others (individuals or groups like the police) are intentionally targeting, spying on, or conspiring against them. **2. Why the other options are incorrect:** * **Ideas of Reference:** This involves the false belief that neutral, external events (like people talking in a corner or a news report) have a special personal significance. While the student felt observed (which can be a precursor), his firm conviction that they were "after him to arrest him" elevates this to a full-blown persecutory delusion. * **Passivity (Made Phenomena):** This is a Schneiderian First Rank Symptom (SFRS) where the patient feels their actions, impulses, or emotions are being controlled by an external agency. There is no evidence of loss of agency here. * **Thought Insertion:** This is the belief that thoughts are being put into one’s mind by an external force. This is a disorder of thought ownership, not content. **3. NEET-PG High-Yield Pearls:** * **Delusion of Persecution** is the most common type of delusion seen in **Schizophrenia**. * **Schneiderian First Rank Symptoms (SFRS):** Include thought insertion, withdrawal, broadcast, passivity, and third-person hallucinations. Note that persecutory delusions are *not* specific to SFRS but are common in psychosis. * **Differentiating Idea vs. Delusion:** An "idea" can be challenged or held with less conviction; a "delusion" is fixed and unshakable.

Question 285: Which of the following is not considered a first-rank symptom of Schizophrenia?

A. Thought insertion
B. Auditory hallucination
C. Delusion (Correct Answer)
D. Made volition

Explanation: **Explanation:** The concept of **First-Rank Symptoms (FRS)** was introduced by **Kurt Schneider** in 1959 to differentiate schizophrenia from other psychotic disorders. While delusions are a core feature of schizophrenia, only specific types of "bizarre" delusions are considered FRS. **Why "Delusion" is the correct answer:** General "Delusion" (Option C) is too broad. While Schneider included **Delusional Perception** (a two-stage process where a normal perception is given a private, delusional meaning) as an FRS, general delusions (like persecutory or grandiose delusions) are common in many other psychiatric conditions and are therefore not pathognomonic for schizophrenia. **Analysis of Incorrect Options (FRS Categories):** * **Thought Insertion (Option A):** Part of "Thought Alienation" (along with withdrawal and broadcasting), where the patient believes thoughts are being put into their mind by an external agency. * **Auditory Hallucinations (Option B):** Specifically, three types are FRS: voices arguing, voices commentating on one's actions, and "Gedankenlautwerden" (thought echo). * **Made Volition (Option C):** Part of "Passivity Phenomena" (Made acts, Made feelings, Made impulses), where the patient feels their actions or will are controlled by an external force. **Clinical Pearls for NEET-PG:** * **Mnemonic for FRS (ABCD):** **A**uditory hallucinations (3 types), **B**roadcasting of thoughts, **C**ontrolled feelings/impulses (Passivity), **D**elusional perception. * **Diagnostic Shift:** While historically significant, **DSM-5** has de-emphasized FRS; they are no longer required for diagnosis because they lack specificity (they can occur in Bipolar Disorder). * **Kurt Schneider** also described "Second-Rank Symptoms," which include emotional blunting and other types of hallucinations.

Question 286: Depressive delusions that the world and everything related to it cease to exist is called?

A. Persecutory delusion
B. Delusion of infidelity
C. Nihilistic delusion (Correct Answer)
D. Delusion of reference

Explanation: ### Explanation **Correct Answer: C. Nihilistic delusion** **Understanding the Concept:** Nihilistic delusions (also known as **delusion of negation**) involve the false belief that oneself, others, or the entire world no longer exists, is dead, or is decomposing. Patients may claim their internal organs are missing or that the world has ended. This is a hallmark feature of **Cotard’s Syndrome**, which is most commonly associated with severe psychotic depression but can also occur in schizophrenia or organic brain states. **Analysis of Incorrect Options:** * **A. Persecutory delusion:** The most common type of delusion where the individual believes they are being conspired against, cheated, spied on, or harassed. It is typically seen in Schizophrenia and Delusional Disorder. * **B. Delusion of infidelity (Othello Syndrome):** A pathological jealousy where the person is convinced, without due cause, that their lover or spouse is unfaithful. * **C. Delusion of reference:** The false belief that insignificant remarks, events, or objects in the environment have personal meaning or significance (e.g., believing a news anchor is sending them a secret code). **High-Yield Clinical Pearls for NEET-PG:** * **Cotard’s Syndrome:** Often described as the "Walking Corpse" syndrome; it is the extreme form of nihilistic delusion. * **Capgras Syndrome:** The belief that a familiar person has been replaced by an identical-looking impostor (an "illusion of doubles"). * **Fregoli Syndrome:** The belief that different people are actually a single person in disguise. * **Key Association:** While persecutory delusions are the most common overall, **nihilistic delusions are highly specific to severe depressive psychosis.**

Question 287: Which of the following is an example of a bizarre delusion?

A. Delusion of infidelity: "My wife has an affair with another person."
B. Delusion of persecution: "My brain is controlled by a microchip." (Correct Answer)
C. Delusion of grandiosity: "I am the greatest person in the world."
D. Delusion of reference: "I am being prosecuted often."

Explanation: ### Explanation **Concept: Bizarre vs. Non-Bizarre Delusions** The core distinction lies in **possibility**. A **bizarre delusion** is a belief that is clearly implausible, not understandable to same-culture peers, and does not derive from ordinary life experiences. In contrast, a **non-bizarre delusion** involves situations that could potentially happen in real life (e.g., being followed, poisoned, or cheated on), even if they are currently untrue. **Why Option B is Correct:** The belief that one's brain is controlled by a microchip (a form of **delusion of control/passivity phenomenon**) is physically impossible and culturally implausible. It defies the laws of nature and is a classic example of a bizarre delusion, which is a characteristic (though not pathognomonic) feature of **Schizophrenia**. **Analysis of Incorrect Options:** * **Option A (Infidelity):** While false, it is entirely possible for a spouse to have an affair. This is a non-bizarre delusion (also known as **Othello Syndrome**). * **Option C (Grandiosity):** Believing one is the "greatest" or highly important is a common theme in Mania (Bipolar Disorder). While exaggerated, it is not considered "bizarre" by clinical definition unless it involves supernatural powers. * **Option D (Reference):** Delusion of reference involves believing that neutral external events (like a news report) have a special personal meaning. While pathological, the scenario of being "prosecuted" is a real-world possibility. **High-Yield Clinical Pearls for NEET-PG:** * **Schneiderian First Rank Symptoms (FRS):** Bizarre delusions, especially those involving **thought alienation** (insertion, withdrawal, broadcast) or **passivity feelings**, are key components of Kurt Schneider’s FRS for Schizophrenia. * **DSM-5 Criteria:** The presence of even *one* bizarre delusion is historically significant for the diagnosis of Schizophrenia. * **Delusional Disorder:** Characterized primarily by **non-bizarre delusions** lasting at least one month, with otherwise relatively preserved functioning.

Question 288: Which type of schizophrenia is characterized by late onset and a good prognosis?

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

Explanation: ### Explanation **Paranoid Schizophrenia** is the most common subtype and is characterized by the presence of prominent delusions (typically persecutory or grandiose) and auditory hallucinations. **Why it is the correct answer:** * **Late Onset:** Unlike other subtypes, it usually manifests in the late 20s or 30s. * **Good Prognosis:** It carries the best prognosis among all subtypes because the patient’s personality remains relatively preserved, and there is a significant absence of "negative symptoms" (apathy, withdrawal) and disorganized behavior/speech. These patients often have better cognitive functioning and social skills, leading to better treatment compliance and outcomes. **Analysis of Incorrect Options:** * **A. Simple Schizophrenia:** Characterized by early onset and an insidious progression of negative symptoms (apathy, social withdrawal) without prominent hallucinations or delusions. It has a **very poor prognosis**. * **B. Hebephrenic (Disorganized) Schizophrenia:** Features early onset (teens/early 20s), disorganized speech, and "flat" or inappropriate affect. It is associated with rapid personality deterioration and a **poor prognosis**. * **C. Catatonic Schizophrenia:** Characterized by psychomotor disturbances (stupor, waxy flexibility, or excitement). While it responds well to ECT and Lorazepam, it does not typically have the "late onset" profile characteristic of the paranoid type. **High-Yield NEET-PG Pearls:** * **Best Prognosis:** Paranoid Schizophrenia. * **Worst Prognosis:** Simple and Hebephrenic Schizophrenia. * **Schneider’s First Rank Symptoms (FRS):** Most commonly seen in Paranoid Schizophrenia. * **Prognostic Factors:** Good prognosis is associated with late onset, female sex, presence of precipitating factors, and acute onset. Poor prognosis is linked to early onset, insidious start, and negative symptoms.

Question 289: Which of the following statements regarding schizophrenia and delusional disorder is FALSE?

A. Delusions and hallucinations are positive symptoms of schizophrenia.
B. Hallucinations are absent in delusional disorder.
C. Symptoms need to be present for at least 6 months to diagnose schizophrenia (according to DSM-5).
D. Socially inappropriate behavior is seen in delusional disorders. (Correct Answer)

Explanation: ### Explanation **Correct Answer: D. Socially inappropriate behavior is seen in delusional disorders.** **Why Option D is False (The Correct Answer):** In **Delusional Disorder**, the patient’s behavior is typically **not** obviously odd or bizarre apart from the impact of their delusion. Unlike schizophrenia, there is a preservation of personality and social functioning. Patients usually remain well-groomed and can function in society unless their specific delusion (e.g., persecution) is directly challenged. Socially inappropriate or "disorganized" behavior is a hallmark of Schizophrenia, not Delusional Disorder. **Analysis of Other Options:** * **Option A:** Delusions and hallucinations are classic **positive symptoms** (excess of normal functions). Negative symptoms include the "5 A's": Affective flattening, Alogia, Anhedonia, Avolition, and Attention deficit. * **Option B:** In Delusional Disorder, the primary symptom is non-bizarre delusions. While tactile or olfactory hallucinations may occur if they are *related* to the delusional theme (e.g., smelling an odor in a somatic delusion), prominent auditory or visual hallucinations are **absent** or very rare. * **Option C:** According to **DSM-5**, a diagnosis of Schizophrenia requires continuous signs of the disturbance for at least **6 months** (including prodromal or residual periods). If symptoms last >1 month but <6 months, the diagnosis is *Schizophreniform Disorder*. **High-Yield Clinical Pearls for NEET-PG:** * **Duration Criteria (DSM-5):** Brief Psychotic Disorder (<1 month) → Schizophreniform (1–6 months) → Schizophrenia (>6 months). * **Delusional Disorder:** Requires a duration of **≥1 month**. * **Bizarre vs. Non-bizarre:** DSM-5 now allows bizarre delusions in Delusional Disorder, but the lack of functional impairment remains the key differentiator from Schizophrenia. * **Most common type of hallucination in Schizophrenia:** Auditory (specifically third-person).

Question 290: What is the definition of treatment-resistant schizophrenia (TRS)?

A. Lack of response to one antipsychotic at an adequate dose for four weeks
B. Lack of response to two different antipsychotics at adequate doses for four weeks (Correct Answer)
C. Lack of response to one antipsychotic at an adequate dose for ten weeks
D. Lack of response to two same antipsychotics at adequate doses for four weeks

Explanation: ### Explanation **Definition and Concept** Treatment-resistant schizophrenia (TRS) is a clinical state where a patient fails to show significant symptomatic improvement despite adequate treatment. According to standard clinical guidelines (including Maudsley and NICE), the formal definition requires: 1. Failure of at least **two different antipsychotic** trials (at least one must be a non-clozapine atypical). 2. Each trial must be at an **adequate dose** (equivalent to Chlorpromazine 400–600 mg/day). 3. Each trial must last for an **adequate duration** (minimum **4–6 weeks**). **Analysis of Options** * **Option B (Correct):** Correctly identifies the requirement for two different drugs and the minimum duration of four weeks. * **Option A:** Incorrect because failure of only one drug is considered "treatment failure," not "treatment resistance." * **Option C:** Incorrect because while ten weeks is a sufficient duration, the definition requires failure of two different medications. * **Option D:** Incorrect because the trials must involve two **different** chemical classes or mechanisms; repeating the same drug does not satisfy the criteria for resistance. **High-Yield Clinical Pearls for NEET-PG** * **Drug of Choice:** **Clozapine** is the gold standard and the only FDA-approved drug for TRS. * **Clozapine Initiation:** Before starting Clozapine, clinicians must check the **Absolute Neutrophil Count (ANC)** due to the risk of agranulocytosis. * **Pseudo-resistance:** Always rule out non-adherence (the most common cause of treatment failure) before labeling a patient as TRS. * **TRS Prevalence:** Approximately 30% of patients with schizophrenia meet the criteria for TRS.

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

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Psychosis in Medical Conditions

Practice Questions

First Episode Psychosis

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Treatment-Resistant Psychosis

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Rehabilitation in Psychotic Disorders

Practice Questions

Outcome and Prognosis

Practice Questions

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