Psychotic Disorders Practice Questions

Q: Which of the following is NOT a clinical manifestation of Schizophrenia?

Altered sensorium. **Explanation:** The correct answer is **B. Altered sensorium**. In psychiatry, **sensorium** refers to the state of consciousness and orientation (to time, place, and person). Schizophrenia is primarily a disorder of **thought, perception, and affect**, occurring in a state of **clear consciousness**. If a patient presents with psychotic symptoms (like delusions or hallucinations) alongside an altered sensorium or clouded consciousness, the clinician must first rule out **Organic Brain Syndromes** (e.g., Delirium) or substance-induced psychosis rather than a primary functional psychotic disorder like Schizophrenia. **Analysis of Incorrect Options:** * **A. Delusion:** These are fixed, false beliefs not amenable to change despite conflicting evidence. They are a "Positive Symptom" and a hallmark feature of Schizophrenia (e.g., delusions of persecution or reference). * **C. Auditory Hallucinations:** These are the most common type of hallucinations in Schizophrenia. Specifically, "Schneiderian First Rank Symptoms" like third-person voices commenting on the patient's actions are highly characteristic. * **D. Catatonia:** This is a state of psychomotor disturbance that can manifest as stupor, mutism, posturing, or waxy flexibility. While it can occur in mood disorders or medical conditions, it remains a recognized clinical subtype/specifier of Schizophrenia. **High-Yield Clinical Pearls for NEET-PG:** * **Schneider’s First Rank Symptoms (FRS):** Includes thought insertion, withdrawal, broadcast, and made phenomena. Their presence strongly suggests Schizophrenia but is not pathognomonic. * **Bleuler’s 4 A’s:** Fundamental symptoms of Schizophrenia—**A**ffective flattening, **A**mbivalence, **A**utism (social withdrawal), and **A**ssociative looseness. * **Visual Hallucinations:** If prominent, always suspect an organic cause (e.g., tumors, epilepsy, or drugs) rather than Schizophrenia.

Q: A patient states, "I ate rice in the morning, fish live in water." Which of the following thought disorders is most suggested by this statement?

Loosening of association. ### Explanation **1. Why "Loosening of Association" is Correct:** Loosening of association (also known as **Knight’s Move thinking** or derailment) is a formal thought disorder where the connection between successive thoughts is lost or becomes so obscure that the listener cannot follow the logic. In the given statement, "I ate rice in the morning" and "fish live in water" are two independent, grammatically correct facts, but they lack any logical or meaningful bridge. This "slippage" of logic is a hallmark symptom of **Schizophrenia**. **2. Why Other Options are Incorrect:** * **Flight of Ideas:** Characterized by rapid shifting from one idea to another, but unlike loosening of association, there is usually a **discernible connection** (often based on puns, rhyming, or environmental stimuli/distractibility). It is the hallmark of **Mania**. * **Thought Insertion:** A delusional belief (thought alienation) where the patient feels that thoughts are being "put into" their mind by an external agency. It is a disorder of thought **possession**, not form. * **Tangentiality:** The patient responds to a question in an oblique or irrelevant manner. The thought never returns to the original point. While similar to derailment, tangentiality is specifically a response to a stimulus (a question). **3. NEET-PG High-Yield Pearls:** * **Loosening of Association:** Pathognomonic for Schizophrenia (Bleuler’s 4 As). * **Word Salad (Incoherence):** The most extreme form of loosening of association where even the grammatical structure is lost. * **Flight of Ideas:** Associated with "Pressure of Speech" in Bipolar Disorder (Manic episode). * **Neologism:** Coining new words that have meaning only to the patient; also common in Schizophrenia.

Q: Which of the following is considered a first-rank symptom of schizophrenia?

Third-person auditory hallucinations. ### Explanation **Kurt Schneider** proposed **First-Rank Symptoms (FRS)** in 1959 to differentiate schizophrenia from other psychotic disorders. These symptoms are highly characteristic of schizophrenia, though not pathognomonic. **Why Option A is Correct:** **Third-person auditory hallucinations** (voices arguing or voices giving a running commentary on the patient's actions) are classic Schneiderian FRS. In these cases, the patient hears voices talking *about* them rather than *to* them. Other auditory FRS include **Thought Echo** (Gedankenlautwerden). **Analysis of Incorrect Options:** * **B. Delusional Misconception:** This is not a standard psychiatric term. The FRS related to delusions is **Delusional Perception** (a normal perception followed by a private, illogical, and delusional meaning). * **C. Nihilistic Delusion (Cotard’s Syndrome):** This is the belief that one is dead, decomposing, or does not exist. It is most commonly associated with **severe psychotic depression**, not schizophrenia FRS. * **D. Delusion of Self-Reference:** While common in schizophrenia, it is considered a **Second-Rank Symptom**. The patient believes neutral events (like a news report) refer specifically to them. **High-Yield Clinical Pearls for NEET-PG:** * **Mnemonic for FRS (ABCD):** * **A**uditory Hallucinations (Running commentary, voices arguing, thought echo). * **B**roadcasting of thoughts (along with Thought Withdrawal and Insertion). * **C**ontrolled Feelings/Impulses (Passivity phenomena/Made acts). * **D**elusional Perception. * **Note:** ICD-11 and DSM-5 have reduced the emphasis on FRS because they lack high diagnostic specificity, but they remain a favorite topic for competitive exams. * **Passivity Phenomena:** The core of FRS is the loss of the boundary between the "self" and the "environment."

Q: Which subtype of schizophrenia is characterized by grossly disorganized behavior, severe personality deterioration, and the worst prognosis?

Hebephrenic. **Explanation:** **Hebephrenic Schizophrenia** (also known as **Disorganized Schizophrenia**) is characterized by a triad of disorganized speech, disorganized behavior, and flat or inappropriate affect (e.g., "giggling" or "silly" behavior). It typically has an **early onset** (usually between ages 15–25) and is associated with rapid and severe **personality deterioration**. Because of its early onset and poor response to treatment, it carries the **worst prognosis** among all subtypes. **Analysis of Incorrect Options:** * **Catatonic Schizophrenia:** Characterized by psychomotor disturbances ranging from stupor and waxy flexibility to purposeless excitement. It generally has a **good prognosis** if treated promptly with benzodiazepines or ECT. * **Simple Schizophrenia:** Features an insidious onset of negative symptoms (apathy, social withdrawal) without prominent hallucinations or delusions. While it has a poor prognosis due to its chronic nature, it lacks the "grossly disorganized behavior" seen in Hebephrenia. * **Paranoid Schizophrenia:** The most common subtype, characterized by stable delusions and hallucinations. It has the **best prognosis** because personality remains relatively intact and it typically presents at a later age. **High-Yield Clinical Pearls for NEET-PG:** * **Best Prognosis:** Paranoid Schizophrenia. * **Worst Prognosis:** Hebephrenic Schizophrenia. * **Schneiderian First Rank Symptoms (FRS):** Most commonly seen in Paranoid Schizophrenia; least common in Hebephrenic. * **ICD-10 vs. DSM-5:** Note that DSM-5 has removed these subtypes, but they remain high-yield for NEET-PG based on ICD-10 classifications.

Q: A 44-year-old man presents with a four-year history of fears that his mathematical abilities have been deteriorating, believing an "alien force disguised as a human being" is responsible. He has isolated himself, left his family, and resigned from his teaching position three years ago. He now supports himself by collecting cans. His affect is blunted, and his appearance is disheveled, unshaven, and unwashed. Which of the following is least suggestive of a schizophrenic disorder in this man?

Age of onset. In schizophrenia, the **age of onset** is a critical diagnostic and prognostic factor. For males, the peak age of onset is typically between **15 and 25 years**. In this case, the patient is 44 years old with a four-year history, meaning his symptoms began around age 40. This is considered a **late-onset** presentation, which is more characteristic of Delusional Disorder or organic causes rather than classic Schizophrenia. ### Explanation of Options: * **Age of Onset (Correct):** As mentioned, schizophrenia typically manifests in early adulthood (late teens to mid-20s for men). An onset at age 40 is atypical and "least suggestive" of the standard clinical profile. * **Delusional System:** The belief that an "alien force" is stealing his abilities is a **bizarre delusion**, which is a hallmark (First Rank Symptom) of schizophrenia. * **Four-year history:** According to ICD-11 and DSM-5, symptoms must persist for at least 1 month and 6 months respectively. A four-year duration strongly supports a chronic psychotic disorder like schizophrenia. * **Decrease in level of functioning:** Social and occupational dysfunction (resigning from work, social isolation, poor hygiene/self-neglect) are core negative symptoms and diagnostic criteria for schizophrenia. ### High-Yield Clinical Pearls for NEET-PG: * **Gender Differences:** Males have an earlier onset (15–25 years) and a poorer prognosis compared to females (25–35 years). * **Late-onset Schizophrenia:** Defined as onset after age 40; it is more common in females and often features paranoid delusions with preserved affect. * **Negative Symptoms:** The "5 A's" (Affective flattening, Alogia, Avolition, Anhedonia, Attention deficit) are often more debilitating than hallucinations. * **Prognosis:** Good prognostic factors include late onset, female sex, presence of mood symptoms, and a clear precipitating stressor.

Q: A 25-year-old male complains of a visual hallucination of a transparent phantom of his own body. What is the most likely diagnosis?

Autoscopic psychosis. **Explanation:** The correct answer is **Autoscopic psychosis**. This is a rare phenomenological experience where an individual perceives a vision of their own body in external space. **1. Why Autoscopic Psychosis is Correct:** Autoscopy (from Greek *autos* "self" and *skopeo* "to look") refers to the experience of seeing a "double" or a phantom of oneself. In this condition, the patient sees a mirror image of themselves, which is often described as **transparent, colorless, or ghostly**. Unlike a reflection in a mirror, the phantom may mimic the patient’s movements or remain stationary. It is often associated with organic brain lesions (especially in the parieto-occipital region), epilepsy, or severe psychological stress. **2. Analysis of Incorrect Options:** * **Capgras Syndrome:** A delusional misidentification where the patient believes a close relative or friend has been replaced by an identical-looking **imposter**. * **Lycanthropy:** A rare delusion where the patient believes they are being transformed into an **animal** (traditionally a wolf). * **Cotard Syndrome:** Also known as "Walking Corpse Syndrome," it is a nihilistic delusion where the patient believes they are **dead**, rotting, or have lost their internal organs/blood. **3. Clinical Pearls for NEET-PG:** * **Heautoscopy:** A variation of autoscopy where the patient sees a double but is unsure which "self" is the real one (associated with vestibular dysfunction). * **Out-of-Body Experience (OBE):** The patient feels their consciousness has left their body and is looking down at their physical self from an elevated perspective. * **Fregoli Syndrome:** The delusional belief that different people are actually a single person in disguise.

Q: A 36-year-old individual has a firm belief that his wife is having an affair. He often sits alone, muttering to himself, and hears voices commenting about him. He was completely normal two weeks prior. What is the most likely diagnosis?

Acute psychosis. **Explanation:** The correct diagnosis is **Acute Psychosis** (specifically Acute and Transient Psychotic Disorder as per ICD-10, or Brief Psychotic Disorder as per DSM-5). **1. Why Acute Psychosis is correct:** The clinical presentation includes core psychotic symptoms: a **delusion** (belief of infidelity/delusional jealousy) and **auditory hallucinations** (voices commenting). The defining factor in this case is the **duration**. The patient was "completely normal two weeks prior," meaning the symptoms have lasted less than one month. In psychiatric classification, psychotic symptoms lasting more than one day but less than one month are categorized as Acute Psychotic Disorder. **2. Why other options are incorrect:** * **Schizophrenia:** Requires a minimum duration of **6 months** (DSM-5) or **1 month** (ICD-10) of continuous symptoms. A two-week duration is insufficient for this diagnosis. * **Delusional Disorder:** Characterized by non-bizarre delusions lasting at least 1 month. Crucially, in Delusional Disorder, prominent hallucinations (like the commenting voices seen here) are typically absent, and the patient’s functioning is not markedly impaired outside the delusion. * **Somatoform Disorder:** This involves physical symptoms (pain, fatigue) that suggest a medical condition but are not fully explained by one. It does not involve psychosis (delusions or hallucinations). **Clinical Pearls for NEET-PG:** * **Duration Criteria:** * 6 months: Schizophrenia. * **Prognosis:** Acute psychosis often has a sudden onset (within 2 weeks) and a good prognosis, frequently triggered by a stressful life event. * **Delusional Jealousy:** Also known as **Othello Syndrome**, it can be a feature of various psychotic disorders or chronic alcoholism.

Question 1

Which of the following is NOT a clinical manifestation of Schizophrenia?

Accepted Answer

Altered sensorium

Answer

Delusion

Answer

Auditory hallucinations

Answer

Catatonia

Question 2

A patient states, "I ate rice in the morning, fish live in water." Which of the following thought disorders is most suggested by this statement?

Accepted Answer

Loosening of association

Answer

Flight of ideas

Answer

Thought insertion

Answer

Tangentiality

Question 3

Which of the following is considered a first-rank symptom of schizophrenia?

Accepted Answer

Third-person auditory hallucinations

Answer

Delusional misconception

Answer

Nihilistic delusion

Answer

Delusion of self-reference

Question 4

Which subtype of schizophrenia is characterized by grossly disorganized behavior, severe personality deterioration, and the worst prognosis?

Accepted Answer

Hebephrenic

Answer

Catatonic

Answer

Simple

Answer

Paranoid

Question 5

Which of the following is not considered a bizarre delusion?

Accepted Answer

My wife is definitely having an affair with a colleague.

Answer

I am followed by aliens from another universe.

Answer

There is a chip inserted in my head to locate me.

Answer

I am an immortal power.

Question 6

A 44-year-old man presents with a four-year history of fears that his mathematical abilities have been deteriorating, believing an "alien force disguised as a human being" is responsible. He has isolated himself, left his family, and resigned from his teaching position three years ago. He now supports himself by collecting cans. His affect is blunted, and his appearance is disheveled, unshaven, and unwashed. Which of the following is least suggestive of a schizophrenic disorder in this man?

Accepted Answer

Age of onset

Answer

Delusional system

Answer

Four-year history of symptoms

Answer

Decrease in level of functioning

Question 7

A patient presents with a one-month history of abnormal hallucinations and delusions. The patient lacks insight into their changed behavior. What is the likely diagnosis?

Accepted Answer

Psychosis

Answer

Paranoia

Answer

Depression

Answer

Schizophrenia

Question 8

A 25-year-old male complains of a visual hallucination of a transparent phantom of his own body. What is the most likely diagnosis?

Accepted Answer

Autoscopic psychosis

Answer

Capgras syndrome

Answer

Lycanthropy

Answer

Cotard syndrome

Question 9

A 40-year-old male has recently started writing books. The content of his writing is incomprehensible, containing neologisms and a disjointed theme. He has become shy and self-absorbed, and when he speaks to people, he discusses metaphilosophical ideas. What is the most likely diagnosis?

Accepted Answer

Schizophrenia

Answer

Mania

Answer

A genius writer

Answer

Delusional disorder

Question 10

A 36-year-old individual has a firm belief that his wife is having an affair. He often sits alone, muttering to himself, and hears voices commenting about him. He was completely normal two weeks prior. What is the most likely diagnosis?

Accepted Answer

Acute psychosis

Answer

Schizophrenia

Answer

Delusional disorder

Answer

Somatoform disorder

Psychotic Disorders — MCQs

Psychotic Disorders — MCQs

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