A 15-year-old boy feels that the di has hung onto him whenever he passes through the diy street. He knows that there is actually no such thing after he has cleaned once, but he is not satisfied and is compelled to think so. The most likely diagnosis is: Gujarat 07
**Core Concept**
The underlying principle being tested is the clinical presentation of a common psychiatric disorder characterized by the presence of persistent, intrusive thoughts, compulsions, or urges that are distressing and interfere with daily functioning. In this scenario, the boy's preoccupation with the idea that the di has hung onto him despite being cleaned suggests a pattern of obsessive thinking.
**Why the Correct Answer is Right**
This presentation is consistent with Obsessive-Compulsive Disorder (OCD), a neurodevelopmental disorder characterized by the presence of obsessions (persistent, intrusive thoughts) and compulsions (repetitive, ritualistic behaviors or mental acts aimed at reducing anxiety). In this case, the boy's thoughts are intrusive and distressing, and he feels compelled to think about the idea of the di being hung onto him, despite knowing it's irrational. This pattern of thinking is often associated with abnormalities in the orbitofrontal cortex and basal ganglia, which are involved in executive function, decision-making, and motor control.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not provided, so we'll skip to the next distractor.
* **Option B:** This option is also not provided, so we'll skip to the next distractor.
* **Option C:** This option is also not provided, so we'll skip to the next distractor.
* **Option D:** This option is also not provided, so we'll skip to the next distractor.
**Clinical Pearl / High-Yield Fact**
OCD is often associated with comorbid anxiety disorders, major depressive disorder, and attention-deficit/hyperactivity disorder (ADHD). The presence of tics, such as eye blinking or facial grimacing, can also be a feature of OCD, particularly in individuals with a family history of tic disorders.
**Correct Answer:** A (Note: The actual correct answer options A, B, C, D are missing from the question provided, so I have just followed the required format.)