Psychiatric Assessment and Diagnosis — MCQs

Psychiatric Assessment and Diagnosis Indian Medical PG Practice Questions and MCQs

Question 381: IQ level of intelligence 90-109 is classified as:

A. Borderline
B. Normal (Correct Answer)
C. Low normal
D. Superior

Explanation: **Explanation:** The classification of Intelligence Quotient (IQ) is primarily based on the **Wechsler Adult Intelligence Scale (WAIS)**, which follows a normal distribution (bell curve) with a mean of 100 and a standard deviation of 15. 1. **Why the correct answer is right:** An IQ score of **90–109** is classified as **Average or Normal**. This range represents the middle of the bell curve, encompassing approximately 50% of the general population. Individuals in this range possess the cognitive abilities required for standard academic and occupational functioning. 2. **Analysis of incorrect options:** * **Borderline (IQ 70–79):** This is the "gray zone" between Intellectual Disability and Low Normal intelligence. These individuals often require some support but do not meet the criteria for Intellectual Disability (which starts below 70). * **Low Normal / Dull Normal (IQ 80–89):** This range is below average but still within the normal variation of the population. * **Superior (IQ 120–129):** This represents significantly above-average cognitive functioning. (Note: 110–119 is High Average, and >130 is Very Superior/Gifted). **High-Yield Clinical Pearls for NEET-PG:** * **Intellectual Disability (ID):** Defined as an IQ <70 along with deficits in adaptive functioning. * **Classification of ID (ICD-10):** * **Mild:** 50–69 (Educable; most common type) * **Moderate:** 35–49 (Trainable; can perform supervised tasks) * **Severe:** 20–34 (Poor verbal communication) * **Profound:** <20 (Requires total nursing care) * **Formula:** IQ = (Mental Age / Chronological Age) × 100. * **Flynn Effect:** The observed rise in average IQ scores over generations, necessitating periodic re-norming of tests.

Question 382: What is the most important cause of neurotic reaction?

A. Projection
B. Regression (Correct Answer)
C. Suppression
D. Sublimation

Explanation: ### Explanation **Correct Answer: B. Regression** **Why Regression is the Correct Answer:** In psychodynamic theory, a **neurotic reaction** occurs when an individual encounters a stressful situation or internal conflict that their current ego strength cannot handle. To cope with this anxiety, the individual undergoes **Regression**—a defense mechanism where they unconsciously revert to an earlier, more primitive stage of development (e.g., oral or anal stages). This "retreat" to a previous level of functioning allows the person to avoid the demands of the current reality, but it results in the formation of neurotic symptoms (such as phobias, obsessions, or conversion symptoms). Regression is considered the hallmark process in the pathogenesis of neurosis. **Analysis of Incorrect Options:** * **A. Projection:** This is a primitive defense mechanism where one attributes their own unacknowledged feelings or impulses to others. While common in paranoid personality disorders and psychosis, it is not the primary driver of a general neurotic reaction. * **C. Suppression:** This is a **mature** defense mechanism involving the *conscious* decision to delay paying attention to an emotion or need. Because it is conscious and adaptive, it does not typically lead to neurotic symptom formation. * **D. Sublimation:** This is also a **mature** defense mechanism where socially unacceptable impulses are transformed into socially acceptable actions (e.g., channeling aggression into sports). It is a sign of healthy ego functioning, not neurosis. **High-Yield Clinical Pearls for NEET-PG:** * **Neurosis vs. Psychosis:** In neurosis, **insight is preserved** and reality testing is intact. In psychosis, insight is lost and reality testing is impaired. * **Hierarchy of Defense Mechanisms:** * **Mature:** Sublimation, Altruism, Suppression, Humor (SASH). * **Neurotic:** Displacement, Intellectualization, Reaction Formation, Repression. * **Immature/Narcissistic:** Projection, Denial, Splitting, Regression. * **Repression vs. Suppression:** Remember that **Repression is unconscious** (the "forgotten" memory), while **Suppression is conscious** (the "ignored" memory).

Question 383: What is transvestism?

A. Wearing clothes of the opposite sex (Correct Answer)
B. Touching one's own private parts to others
C. Desire for sexual intercourse with dead bodies
D. Achieving orgasm from the visual stimulation of a woman's body

Explanation: **Explanation:** **Transvestism** (or Transvestic Disorder) is a type of paraphilia characterized by recurrent and intense sexual arousal from **cross-dressing** (wearing clothes of the opposite sex). In the context of psychiatric diagnosis (DSM-5/ICD-11), it is primarily seen in heterosexual males who experience sexual excitement while wearing female attire. It is important to distinguish this from gender dysphoria; individuals with transvestism generally do not wish to change their biological sex. **Analysis of Incorrect Options:** * **Option B (Frotteurism):** This involves the act of touching or rubbing one's genitals against a non-consenting person, typically in crowded places like buses or trains. * **Option C (Necrophilia):** This is a paraphilia characterized by sexual attraction to or sexual intercourse with corpses. * **Option D (Voyeurism):** This involves achieving sexual arousal by observing an unsuspecting person who is naked, disrobing, or engaging in sexual activity ("Peeping Tom"). **High-Yield Clinical Pearls for NEET-PG:** * **Dual-role Transvestism (ICD-10):** Wearing clothes of the opposite sex to enjoy a temporary sense of membership in that sex, but *without* sexual motivation or desire for permanent sex reassignment. * **Fetishistic Transvestism:** Cross-dressing specifically for sexual arousal (often involving specific fabrics like silk or lace). * **Demographics:** Almost exclusively reported in males. * **Treatment:** Behavioral therapy (Aversion therapy) and SSRIs (to reduce compulsive sexual urges) are commonly employed.

Question 384: Which of the following is NOT a feature of Alzheimer's disease?

A. More common in females
B. Recent memory loss
C. Mini-Mental State Examination (MMSE) is useful in diagnosis
D. Medications offer near 100% cure (Correct Answer)

Explanation: **Explanation:** Alzheimer’s Disease (AD) is a chronic, progressive neurodegenerative disorder characterized by the accumulation of amyloid-beta plaques and tau tangles. Currently, there is **no cure** for Alzheimer’s disease. Medications like Cholinesterase inhibitors (Donepezil, Rivastigmine) and NMDA receptor antagonists (Memantine) only provide symptomatic relief and may slow cognitive decline, but they do not reverse the underlying pathology or offer a "100% cure." **Analysis of Options:** * **Option A (More common in females):** This is a correct statement. Epidemiological studies show a higher prevalence of AD in women, partly due to longer life expectancy and potential hormonal factors (estrogen deficiency post-menopause). * **Option B (Recent memory loss):** This is the hallmark clinical feature of AD. It typically presents with anterograde amnesia (difficulty forming new memories) due to early involvement of the hippocampus. * **Option C (MMSE is useful):** The Mini-Mental State Examination is a standard bedside tool used to screen for cognitive impairment and monitor the progression of dementia. A score below 24 is generally suggestive of cognitive impairment. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause of dementia:** Alzheimer’s Disease (60-80% of cases). * **Genetics:** Early-onset AD is associated with mutations in **APP (Chr 21)**, **Presenilin 1 (Chr 14)**, and **Presenilin 2 (Chr 1)**. Late-onset is linked to **ApoE4**. * **Pathology:** Characterized by **Senile plaques** (extracellular Amyloid-beta) and **Neurofibrillary tangles** (intracellular hyperphosphorylated Tau protein). * **Brain Imaging:** Shows generalized cortical atrophy, particularly in the **hippocampus** and temporal lobes.

Question 385: A patient reports hearing music whenever their thumb is touched. This phenomenon is an example of what type of hallucination?

A. Reflex hallucination (Correct Answer)
B. Functional hallucination
C. Visual hallucination
D. Extracampine hallucination

Explanation: ### Explanation **Correct Answer: A. Reflex hallucination** **Why it is correct:** A **reflex hallucination** occurs when a sensory stimulus in one modality (e.g., touch) triggers a hallucination in a completely different sensory modality (e.g., hearing). In this case, the tactile stimulus of touching the thumb "reflexively" provokes an auditory hallucination (music). This is a form of synesthesia-like pathological experience often associated with schizophrenia. **Why the other options are incorrect:** * **B. Functional hallucination:** This occurs when a real stimulus in one modality triggers a hallucination in the **same** modality. For example, hearing voices only when a tap is running (water noise triggers auditory hallucination). * **C. Visual hallucination:** This refers to seeing things that are not there. The question describes an auditory experience (music). * **D. Extracampine hallucination:** This is a hallucination that occurs outside the normal sensory field. For example, a patient "seeing" someone standing behind them or "hearing" a voice coming from another city. **High-Yield NEET-PG Pearls:** * **Reflex vs. Functional:** The key differentiator is the **modality**. Different modality = Reflex; Same modality = Functional. * **Hypnagogic vs. Hypnopompic:** Hallucinations while falling asleep (Gogic = Go to sleep) vs. waking up (Pompic = Pop out of bed). These can be normal but are also seen in Narcolepsy. * **Elementary Hallucinations:** Simple sounds (whistling, clicking) or flashes of light, often seen in organic brain disorders or epilepsy. * **Autoscopic Hallucination:** Seeing a double of oneself in the external space (phantom double).

Question 386: Which of the following is the psychological defense mechanism by the virtue of which an individual blames others for his mistake?

A. Rationalization
B. Compensation
C. Projection (Correct Answer)
D. Regression

Explanation: **Explanation:** **Projection** is the correct answer. It is a primitive defense mechanism where an individual attributes their own unacceptable thoughts, feelings, or impulses onto someone else. In the context of the question, instead of accepting responsibility for a mistake, the individual "projects" the blame onto others to reduce their own anxiety or guilt. **Analysis of Options:** * **Rationalization (Option A):** This involves creating logical, socially acceptable reasons to justify behavior that is actually motivated by unconscious or unacceptable impulses. It is "making excuses" rather than blaming others. * **Compensation (Option B):** This is a process where an individual overemphasizes a positive trait to make up for a perceived deficiency in another area (e.g., a student failing in academics excelling in sports). * **Regression (Option D):** This involves retreating to an earlier stage of development (child-like behaviors) when faced with stress or conflict. **Clinical Pearls for NEET-PG:** * **Projection** is a hallmark feature of **Paranoid Personality Disorder** and **Schizophrenia** (delusions of persecution). * **Defense Mechanisms Classification:** Projection and Regression are considered **Immature** defenses, while Rationalization is **Intermediate (Neurotic)**. * **Key Distinction:** In *Projection*, the impulse is externalized ("I don't hate him, he hates me"). In *Reaction Formation*, the impulse is transformed into its opposite ("I hate him" becomes "I love him").

Question 387: What is the new name for mental retardation in ICD-11?

A. Intellectual disability
B. Disorders of intellectual development (Correct Answer)
C. Mental instability
D. Intellectual deterioration

Explanation: **Explanation:** The transition from ICD-10 to **ICD-11** brought significant changes in terminology to reduce stigma and align with modern clinical practices. The term "Mental Retardation" has been officially replaced by **Disorders of Intellectual Development**. **1. Why the correct answer is right:** In ICD-11, **Disorders of Intellectual Development** are classified under Neurodevelopmental Disorders. The diagnosis requires deficits in both intellectual functioning (usually confirmed by standardized testing, IQ < 70) and adaptive behavior (conceptual, social, and practical domains) originating during the developmental period. This shift emphasizes the developmental nature of the condition rather than just a "mental" deficit. **2. Why the other options are wrong:** * **Intellectual Disability (Option A):** This is the terminology used in the **DSM-5**. While commonly used in clinical practice and synonymous in meaning, it is not the specific term adopted by ICD-11. * **Mental Instability (Option C):** This is a vague, non-clinical term often used colloquially to describe mood swings or personality disorders; it has no place in formal psychiatric classification. * **Intellectual Deterioration (Option D):** This refers to a decline from a previously attained level of functioning, which is characteristic of **Dementia (Neurocognitive Disorders)**, whereas intellectual development disorders are present from birth or early childhood. **High-Yield Clinical Pearls for NEET-PG:** * **ICD-11 Code:** 6A00. * **Key Criteria:** Deficits in intellectual functions AND adaptive functioning. * **Severity Levels:** Still categorized as Mild, Moderate, Severe, and Profound, but based primarily on **adaptive functioning** rather than IQ scores alone. * **Most common cause:** Genetic (Trisomy 21/Down Syndrome is the most common chromosomal cause; Fragile X is the most common inherited cause).

Question 388: What clinical feature best differentiates delirium from dementia?

A. Loss of memory
B. Apraxia
C. Delusion
D. Altered sensorium (Correct Answer)

Explanation: **Explanation:** The hallmark feature that differentiates **Delirium** from **Dementia** is the state of consciousness, specifically an **altered sensorium** (clouding of consciousness). 1. **Why "Altered Sensorium" is correct:** Delirium is an acute neuropsychiatric syndrome characterized by a **fluctuating level of consciousness** and impaired attention. In contrast, patients with Dementia are typically "alert but confused"—their level of consciousness remains stable and clear until the very late stages of the disease. 2. **Analysis of Incorrect Options:** * **A. Loss of memory:** This is a core feature of both conditions. While memory loss is the primary symptom of dementia, it also occurs in delirium due to impaired registration and inattention. * **B. Apraxia:** This refers to the inability to perform learned purposeful movements. It is a cortical sign commonly seen in chronic neurodegenerative conditions like Alzheimer’s Dementia but is not a defining feature of delirium. * **C. Delusion:** Psychotic symptoms like delusions and hallucinations can occur in both delirium (often fleeting and fragmented) and dementia (e.g., delusions of theft in Alzheimer’s). Therefore, they are not pathognomonic for differentiation. **NEET-PG High-Yield Pearls:** * **Onset:** Delirium is **acute** (hours to days); Dementia is **insidious/chronic** (months to years). * **Reversibility:** Delirium is usually reversible (secondary to medical illness/toxicity); Dementia is typically progressive and irreversible. * **Attention:** Impaired attention is the "cardinal" sign of delirium. If a patient cannot name the months of the year backward, suspect delirium. * **EEG:** Delirium typically shows **generalized slowing** (except in alcohol withdrawal/DTs); the EEG in dementia is usually normal for the patient's age.

Question 389: What is the term for a study that compares the behavioral and developmental changes in a normal brain with a damaged brain?

A. Neuropsychology (Correct Answer)
B. Neurodevelopmental psychology
C. Child psychology
D. Criminal psychology

Explanation: **Explanation:** **Neuropsychology** is the branch of psychology that focuses on how the brain and the rest of the nervous system influence a person's cognition and behaviors. It specifically involves the study of individuals with brain damage or neurological diseases to compare their behavioral and developmental changes against those of a "normal" or healthy brain. By observing what functions are lost or altered following a lesion (the **lesion method**), neuropsychologists can map specific psychological functions to particular brain structures. **Analysis of Incorrect Options:** * **Neurodevelopmental psychology:** Focuses specifically on the progressive development of the nervous system and the psychological processes associated with it from infancy through adulthood. It does not primarily rely on the comparison of damaged vs. normal brains as its defining methodology. * **Child psychology:** A broad field dealing with the mental, emotional, and social development of children. While it may touch on brain injury, its scope is developmental rather than comparative neuro-pathological. * **Criminal psychology:** The study of the views, thoughts, intentions, and reactions of criminals. It focuses on legal and forensic contexts rather than the physiological comparison of brain integrity. **Clinical Pearls for NEET-PG:** * **Luria-Nebraska & Halstead-Reitan:** These are high-yield examples of standardized **Neuropsychological Battery** tests used to assess brain damage. * **Bender-Gestalt Test:** A common neuropsychological tool used to evaluate visual-motor maturity and screen for organic brain dysfunction. * **Frontal Lobe Assessment:** Often tested via the **Wisconsin Card Sorting Test (WCST)**, which measures executive function and set-shifting.

Question 390: Which of the following is NOT a feature of hallucination?

A. It can occur in any sensory modality
B. It is independent of the will of the observer
C. It is defined as perception occurring without external stimulation
D. Always pathological (Correct Answer)

Explanation: **Explanation:** A **hallucination** is defined as a perception in the absence of an external stimulus. It has the qualities of a real perception, meaning it is vivid, substantial, and located in external objective space. **Why "Always pathological" is the correct answer:** Hallucinations are **not** always pathological. They can occur in healthy individuals under specific physiological conditions. Common examples include: * **Hypnagogic hallucinations:** Occurring while falling asleep. * **Hypnopompic hallucinations:** Occurring while waking up. * **Bereavement:** Hearing the voice of a recently deceased loved one. * **Sensory deprivation:** Prolonged isolation or lack of sensory input. **Analysis of Incorrect Options:** * **Option A:** Hallucinations can occur in **any sensory modality**, including auditory (most common in schizophrenia), visual (common in organic brain syndromes), olfactory, gustatory, and tactile. * **Option B:** They are **independent of the observer's will**. Unlike imagery, the individual cannot start, stop, or change the hallucination at will. * **Option C:** This is the **standard definition** of a hallucination (perception without external stimulus), distinguishing it from an **illusion** (misinterpretation of a real stimulus). **NEET-PG Clinical Pearls:** 1. **Auditory Hallucinations:** Most common in functional psychoses (Schizophrenia). **Third-person** auditory hallucinations (voices arguing or commenting) are Schneiderian First Rank Symptoms. 2. **Visual Hallucinations:** Highly suggestive of **organic mental disorders** (e.g., Delirium, substance withdrawal). 3. **Tactile (Haptic) Hallucinations:** Often seen in cocaine intoxication (**Formication** or "Cocaine bugs"). 4. **Pseudo-hallucinations:** Occur in internal subjective space (the "mind's eye") and are recognized by the patient as not being real.

Practice by Chapter

Clinical Interview Techniques

Practice Questions

Mental Status Examination

Practice Questions

Diagnostic Formulation

Practice Questions

Rating Scales and Questionnaires

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Psychological Testing

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Neuropsychological Assessment

Practice Questions

Risk Assessment

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Laboratory Investigations in Psychiatry

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Neuroimaging in Clinical Assessment

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Cultural Considerations in Assessment

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Developmental Assessment

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Diagnostic Classification Systems

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