Psychotic Disorders Practice Questions

Q: What is a differentiating feature between neurosis and psychosis?

Lack of insight. ### Explanation The fundamental distinction between **neurosis** and **psychosis** lies in the patient’s relationship with reality and their self-awareness regarding their condition. **1. Why "Lack of Insight" is the Correct Answer:** Insight refers to the patient's ability to recognize that their symptoms (such as hallucinations or delusions) are abnormal and part of a mental illness. In **psychosis** (e.g., Schizophrenia, Mania), there is a complete **loss of insight** and a break from reality; the patient believes their distorted perceptions are real. In contrast, in **neurosis** (e.g., Anxiety disorders, OCD), insight is typically **preserved**—the patient recognizes their symptoms as distressing and irrational. Therefore, the *lack* of insight is the hallmark feature that differentiates psychosis from neurosis. **2. Analysis of Incorrect Options:** * **Option A (Insight is preserved):** This is a feature of neurosis, not a differentiating feature that defines the transition into psychosis. * **Option C (Personality and behavior preserved):** While personality is generally more intact in neurosis and disorganized in psychosis, this is not as definitive or pathognomonic as the status of insight. Behavioral changes can occur in both, though they are more bizarre in psychosis. **3. NEET-PG Clinical Pearls:** * **Reality Testing:** This is impaired in psychosis but intact in neurosis. * **Judgment:** Usually impaired in psychosis; generally intact in neurosis. * **High-Yield Distinction:** * **Neurosis:** Contact with reality is maintained; symptoms are "ego-dystonic" (perceived as alien/distressing). * **Psychosis:** Contact with reality is lost; symptoms are often "ego-syntonic" (perceived as part of the self). * **Note:** In the modern DSM-5/ICD-11, the term "neurosis" is less commonly used as a formal diagnosis, but it remains a high-yield conceptual framework for competitive exams.

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 patient involved in a car accident was admitted to the ICU for six months. After discharge, she frequently wakes up at night feeling terrified and experiences fear when sitting in a car again. What is the most likely diagnosis?

Post-traumatic stress disorder. ### Explanation **Correct Answer: D. Post-traumatic stress disorder (PTSD)** The patient presents with the classic triad of PTSD following a life-threatening event (a severe car accident and six-month ICU stay): 1. **Re-experiencing:** Waking up terrified (nightmares) and intrusive memories. 2. **Avoidance/Hyperarousal:** Experiencing fear when sitting in a car (avoidance of triggers or autonomic arousal). 3. **Duration:** Symptoms occurring after discharge (likely >1 month). The core of PTSD is the development of characteristic symptoms following exposure to an extreme traumatic stressor involving actual or threatened death or serious injury. **Why other options are incorrect:** * **A. Panic Disorder:** Characterized by recurrent, *unexpected* panic attacks without a specific external trigger. Here, the fear is specifically linked to the trauma (the car). * **B. Phobia:** While she fears cars, a simple phobia does not explain the nightmares or the history of a major traumatic event. PTSD is a more comprehensive diagnosis encompassing these symptoms. * **C. Conversion Disorder (Functional Neurological Symptom Disorder):** Involves unexplained deficits in voluntary motor or sensory functions (e.g., paralysis, blindness) triggered by psychological stress, which are not present here. **Clinical Pearls for NEET-PG:** * **Timeline is Key:** * 1 month: **PTSD**. * **First-line Treatment:** Trauma-focused Cognitive Behavioral Therapy (CBT) and **SSRIs** (e.g., Sertraline, Paroxetine). * **Prazosin:** High-yield drug used specifically to reduce **nightmares** in PTSD patients. * **Complex PTSD:** Often involves long-term, repeated trauma (e.g., childhood abuse) rather than a single event.

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.

Question 1

The presence of delusion, hallucination, and disturbed cognitive functions indicate which of the following?

Accepted Answer

Organic Brain Syndrome

Answer

Paranoid Psychosis

Answer

Obsessive-Compulsive Disorder

Answer

Dissociative disorder

Question 2

What is a differentiating feature between neurosis and psychosis?

Accepted Answer

Lack of insight

Answer

Insight is preserved

Answer

Personality and behavior preserved

Answer

None of the above

Question 3

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 4

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 5

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 6

A patient involved in a car accident was admitted to the ICU for six months. After discharge, she frequently wakes up at night feeling terrified and experiences fear when sitting in a car again. What is the most likely diagnosis?

Accepted Answer

Post-traumatic stress disorder

Answer

Panic Disorder

Answer

Phobia

Answer

Conversion disorder

Question 7

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 8

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 9

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 10

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

Psychotic Disorders — MCQs

Psychotic Disorders — MCQs

On this page

Practice by Chapter

Want unlimited practice?