Psychotic Disorders Practice Questions

Q: Which of the following is not a Schneider's first-rank symptom?

Delusion of self-reference. **Explanation:** Kurt Schneider’s **First-Rank Symptoms (FRS)** are a group of specific psychotic symptoms that, in the absence of organic brain disease, are highly suggestive of Schizophrenia. While they are no longer mandatory for diagnosis in modern systems like DSM-5, they remain high-yield for exams. **Why "Delusion of Self-Reference" is the correct answer:** Delusion of reference (the belief that neutral events or coincidences have a special personal significance) is a common symptom of schizophrenia but is **not** classified as a Schneiderian First-Rank Symptom. It is considered a "second-rank" symptom because it lacks the specific diagnostic weight Schneider attributed to the FRS. **Analysis of Incorrect Options:** * **Passivity Phenomenon (A):** This is a core FRS where the patient feels their actions, impulses, or emotions are being controlled by an external force (e.g., "Made" acts, "Made" affect). * **Auditory Hallucinations (B):** Specifically, three types are FRS: **Third-person hallucinations** (voices arguing), **Running commentary** (voices describing the patient's actions), and **Thought Echo** (Gedankenlautwerden). * **Delusional Perception (D):** This is a two-stage process where a normal perception is suddenly given a delusional, highly significant meaning (e.g., seeing a red car and instantly "knowing" it means the secret police are coming). **Clinical Pearls for NEET-PG:** * **Mnemonic for FRS (ABCD):** **A**uditory Hallucinations (3 types), **B**roadcasting of thoughts, **C**ontrol (Passivity), **D**elusional Perception. * **Thought Alienation:** Includes Thought Insertion, Thought Withdrawal, and Thought Broadcasting (all are FRS). * **Exam Trap:** Somatic hallucinations are FRS, but simple visual or olfactory hallucinations are not. * **Current Status:** FRS are no longer required for a diagnosis of Schizophrenia in DSM-5, as they were found to be less specific than previously thought.

Q: A patient with schizophrenia is convinced that she has caused a recent earthquake because she was bored and wishing for something exciting to occur. Which of the following symptoms describes this patient's thoughts?

Magical thinking. **Explanation:** The correct answer is **Magical thinking**. This is a cognitive distortion where a person believes that their thoughts, words, or actions can cause or prevent specific outcomes in a way that defies the laws of cause and effect. In this case, the patient believes her internal desire for excitement directly caused a physical, geological event (an earthquake). While common in normal childhood development, in adults, it is a frequent feature of Schizotypal Personality Disorder and Schizophrenia. **Analysis of Incorrect Options:** * **A. Thought broadcasting:** This is a delusion where the patient believes their private thoughts are being transmitted out loud so that others can hear them. * **C. Echolalia:** This is a formal thought disorder/speech sign characterized by the senseless, parrot-like repetition of words or phrases spoken by another person. * **D. Nihilism:** Also known as Cotard’s syndrome, this is a delusion where the patient believes that they, a part of their body, or the world itself does not exist or is "dead." **Clinical Pearls for NEET-PG:** * **Magical Thinking vs. Delusion of Influence:** While magical thinking involves a causal link between thoughts and events, a **delusion of influence** (Passivity phenomenon) specifically involves the belief that one’s body or actions are being controlled by an external force (Schneiderian First Rank Symptom). * **Key Association:** Magical thinking is a diagnostic criterion for **Schizotypal Personality Disorder**. * **Thought Broadcasting** is a **Schneiderian First Rank Symptom (FRS)**, whereas magical thinking is not.

Q: Which of the following is a psychosis?

Mania. ### Explanation In psychiatry, disorders are broadly categorized into **Psychosis** and **Neurosis**. The fundamental distinction lies in the **insight** (the patient’s awareness of their illness) and the **reality testing** (the ability to distinguish internal fantasies from external reality). **Why Mania is the Correct Answer:** Mania is a state of abnormally elevated arousal, affect, and energy level. It is classified as a **psychotic disorder** (specifically under Mood/Affective Disorders) because, during a manic episode, a patient typically lacks insight and experiences a significant break from reality. Severe mania often presents with psychotic features such as **delusions of grandeur** (e.g., believing they have special powers) or hallucinations. **Analysis of Incorrect Options:** * **A, B, and C (OCD, Phobia, and Anxiety):** These are classified as **Neurotic or Stress-related disorders**. In these conditions: * **Insight is preserved:** The patient is aware that their thoughts or fears are irrational or excessive. * **Reality testing is intact:** There is no gross distortion of external reality (no delusions or hallucinations). * **Personality** remains relatively organized compared to psychotic states. **High-Yield Clinical Pearls for NEET-PG:** * **Insight:** The hallmark of neurosis is present insight; the hallmark of psychosis is absent insight. * **Major Psychoses:** Include Schizophrenia, Mood Disorders (Mania/Depression with psychotic features), and Delusional Disorders. * **Pseudo-hallucinations:** Often seen in neurosis (the patient knows the perception isn't real), whereas true hallucinations are a core feature of psychosis. * **ICD-10/DSM-5:** While modern classifications move away from the "Neurosis vs. Psychosis" terminology, it remains a high-yield concept for competitive exams.

Q: Which of the following is not a feature of delirium?

Intact attention. **Explanation:** Delirium (Acute Confusional State) is an acute, transient, and reversible syndrome characterized by a global impairment of cognitive functions. **Why "Intact Attention" is the correct answer:** The hallmark feature of delirium is a **disturbance of consciousness and attention**. Patients typically demonstrate an inability to focus, sustain, or shift attention. Therefore, "intact attention" is fundamentally incompatible with a diagnosis of delirium. In contrast, in conditions like early Dementia, attention usually remains intact while memory is lost. **Analysis of other options:** * **Memory loss:** While attention is the primary deficit, global cognitive impairment occurs, frequently involving short-term memory loss and disorientation to time and place. * **Illusion:** Perceptual disturbances are very common. While visual hallucinations are classic, **illusions** (misinterpretation of real external stimuli) are frequently seen due to the clouded consciousness. * **Disturbed sleep:** A reversal of the sleep-wake cycle (daytime somnolence and nocturnal agitation/“sundowning”) is a diagnostic criterion for delirium. **High-Yield Clinical Pearls for NEET-PG:** * **Onset:** Acute (hours to days) with a **fluctuating course** (worse at night). * **EEG Finding:** Characteristically shows **generalized slowing** of background activity (except in Delirium Tremens, where activity is fast). * **Primary Management:** Treat the underlying medical cause (e.g., infection, electrolyte imbalance). * **Drug of Choice:** Low-dose **Haloperidol** (avoid Benzodiazepines unless the delirium is due to alcohol withdrawal).

Q: Which of the following MRI findings is FALSE in schizophrenia?

Cortical thickening. **Explanation:** In Schizophrenia, the structural brain changes are characterized by **neurodegeneration and volume loss**, rather than growth. Therefore, **Option B (Cortical thickening) is FALSE** because Schizophrenia is associated with **cortical thinning**, particularly in the prefrontal and temporal regions, due to reduced neuropil (dendritic branching and synaptic density) rather than a loss of cell bodies. **Analysis of other options:** * **Option A (Increased ventricular volume):** This is the most consistent finding in Schizophrenia. Lateral and third ventricular enlargement occurs due to the loss of surrounding brain parenchyma (ventriculomegaly). * **Option C & D (Reduced volume of temporal and hippocampal lobes):** Structural MRI typically shows a 5–10% reduction in total brain volume. Specifically, the **limbic system** (hippocampus, amygdala, and parahippocampal gyrus) and the **superior temporal gyrus** show significant volume reduction, which correlates with positive symptoms like auditory hallucinations and memory deficits. **High-Yield NEET-PG Pearls:** 1. **Most common MRI finding:** Enlargement of lateral ventricles. 2. **Key area of volume loss:** Hippocampus and Thalamus. 3. **Functional Imaging (PET/SPECT):** Shows **Hypofrontality** (reduced blood flow/glucose metabolism in the prefrontal cortex during executive tasks). 4. **Neuropathology:** Unlike Alzheimer’s, Schizophrenia does **not** show prominent gliosis; it is considered a neurodevelopmental disorder with progressive features.

Q: Who is credited with developing the concept of modeling in conversion disorder?

Freud. **Explanation:** **Sigmund Freud (Option A)** is credited with developing the concept of **modeling** (also known as identification) in the context of **Conversion Disorder** (Functional Neurological Symptom Disorder). Freud proposed that conversion symptoms are not random; rather, they are often "modeled" after a person whom the patient identifies with or after a previous physical illness the patient has experienced. This serves as a psychological defense mechanism where an unconscious intrapsychic conflict is "converted" into a physical symptom to reduce anxiety (Primary Gain). **Analysis of Incorrect Options:** * **Erik Erikson (Option B):** Known for his theory on the **eight stages of psychosocial development** and the concept of the "identity crisis." He did not focus on the mechanisms of conversion. * **Bénédict Morel (Option C):** A key figure in early psychiatry known for the **Degeneration Theory** and for coining the term *démence précoce* (later renamed Schizophrenia by Bleuler). * **Konrad Lorenz (Option D):** An ethologist famous for his work on **imprinting** and animal behavior, which laid the groundwork for attachment theory, but he is not associated with conversion disorders. **High-Yield Clinical Pearls for NEET-PG:** * **Primary Gain:** Internal relief from anxiety by keeping the conflict out of conscious awareness. * **Secondary Gain:** External benefits obtained from being sick (e.g., attention, avoiding work). * **La Belle Indifférence:** A classic (though not pathognomonic) feature where the patient shows a relative lack of concern regarding their severe physical disability. * **Common Presentation:** Motor deficits (paralysis), sensory loss, or pseudo-seizures that do not follow anatomical neural pathways.

Q: What is Capgras syndrome?

Delusion of doubles. **Explanation:** **Capgras syndrome** is a specific type of **delusional misidentification syndrome**. In this condition, the patient holds a fixed, false belief that a person close to them (usually a spouse or family member) has been replaced by an identical-looking impostor or a "double." This is why it is classically referred to as the **"Delusion of Doubles."** * **Why Option B is Correct:** It accurately describes the core psychopathology where the patient recognizes the physical features of a person but lacks the emotional familiarity associated with them, leading to the delusion of a replacement. * **Why Options A, C, and D are Incorrect:** * **A. Sharing of delusion:** This refers to *Folie à deux* (Induced Delusional Disorder), where two closely associated people share the same delusional system. * **C. Erotomania:** Also known as *De Clerambault’s syndrome*, this is the delusion that a person (usually of higher status) is in love with the patient. * **D. Hypochondriacal delusions:** These involve a fixed false belief that one has a serious medical illness despite reassurances (often seen in psychotic depression or Monosymptomatic Hypochondriacal Psychosis). **High-Yield Clinical Pearls for NEET-PG:** * **Fregoli Syndrome:** The opposite of Capgras; the patient believes different strangers are actually a single familiar person in disguise. * **Cotard Syndrome:** The "Walking Corpse" delusion; the patient believes they are dead, putrefying, or have lost their internal organs. * **Neuroanatomy:** Capgras is often associated with lesions in the **right hemisphere** or a disconnection between the visual recognition area (fusiform gyrus) and the emotional processing center (amygdala).

Q: A 36-year-old male presents with the delusion that a stranger has disguised himself as his uncle to steal his property. He insists this person is not his real uncle. What is the diagnosis?

Capgras syndrome. ### Explanation **1. Why Capgras Syndrome is Correct:** Capgras syndrome is a **delusional misidentification syndrome** characterized by the "illusion of doubles." The patient believes that a person close to them (usually a family member or spouse) has been replaced by an identical-looking impostor or stranger. In this case, the patient recognizes the physical appearance of his uncle but denies his true identity, claiming a stranger is in disguise. This is often associated with schizophrenia, dementia, or right-sided cerebral lesions. **2. Why the Other Options are Incorrect:** * **Fregoli Syndrome:** This is the "inverse" of Capgras. The patient believes that different strangers are actually a single familiar person in disguise. They see a familiar face in many strangers. * **Cotard Syndrome:** Also known as "walking corpse syndrome," the patient suffers from nihilistic delusions, believing they are dead, their organs are rotting, or they do not exist. It is typically seen in severe psychotic depression. * **Alport Syndrome:** This is a genetic renal disorder (Type IV collagen mutation) characterized by glomerulonephritis, end-stage kidney disease, and hearing loss. It is not a psychiatric condition. **3. High-Yield Clinical Pearls for NEET-PG:** * **Capgras vs. Fregoli:** Remember **C**apgras = **C**lose person is a stranger; **F**regoli = **F**amiliar person is in many strangers. * **Intermetamorphosis:** Another misidentification syndrome where the patient believes people have swapped physical and psychological identities. * **Syndrome of Subjective Doubles:** The belief that an exact double of oneself is living an independent life. * **Neurobiology:** These syndromes often involve a disconnection between the **fusiform face area** (recognition) and the **amygdala** (emotional response).

Question 1

Which of the following is not a Schneider's first-rank symptom?

Accepted Answer

Delusion of self-reference

Answer

Passivity phenomenon

Answer

Auditory hallucinations

Answer

Delusional perception

Question 2

A patient with schizophrenia is convinced that she has caused a recent earthquake because she was bored and wishing for something exciting to occur. Which of the following symptoms describes this patient's thoughts?

Accepted Answer

Magical thinking

Answer

Thought broadcasting

Answer

Echolalia

Answer

Nihilism

Question 3

Which of the following is a psychosis?

Accepted Answer

Mania

Answer

Obsessive-Compulsive Disorder (OCD)

Answer

Phobia

Answer

Anxiety

Question 4

Which of the following is not a feature of delirium?

Accepted Answer

Intact attention

Answer

Memory loss

Answer

Illusion

Answer

Disturbed sleep

Question 5

Which of the following MRI findings is FALSE in schizophrenia?

Accepted Answer

Cortical thickening

Answer

Increased ventricular volume

Answer

Reduced volume of temporal lobe

Answer

Reduced volume of hippocampal lobe

Question 6

Which of the following characterizes schizophrenia?

Accepted Answer

All of the above

Answer

Formed through disorder

Answer

Hallucination

Answer

Delusion

Question 7

Who is credited with developing the concept of modeling in conversion disorder?

Accepted Answer

Freud

Answer

Erikson

Answer

Morel

Answer

Lorenz

Question 8

Which of the following is a poor prognostic indicator of Schizophrenia?

Accepted Answer

Family history of Schizophrenia

Answer

Late onset

Answer

Positive precipitating factors

Answer

Prominent affective symptoms

Question 9

What is Capgras syndrome?

Accepted Answer

Delusion of doubles

Answer

Sharing of delusion

Answer

Erotomania

Answer

Hypochondriacal delusions

Question 10

A 36-year-old male presents with the delusion that a stranger has disguised himself as his uncle to steal his property. He insists this person is not his real uncle. What is the diagnosis?

Accepted Answer

Capgras syndrome

Answer

Fregoli syndrome

Answer

Cotard syndrome

Answer

Alport syndrome

Psychotic Disorders — MCQs

Psychotic Disorders — MCQs

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