Defence mechanism in OCD –
**Core Concept**
Obsessive-Compulsive Disorder (OCD) is characterized by the presence of intrusive thoughts (obsessions) and repetitive behaviors (compulsions) that an individual feels compelled to perform to reduce anxiety. The defence mechanism in OCD is primarily a response to the perceived threat or danger associated with the intrusive thoughts.
**Why the Correct Answer is Right**
In OCD, the defence mechanism is a manifestation of the ego's attempt to cope with the anxiety triggered by the intrusive thoughts. This is achieved through the use of **repression**, a defence mechanism where the ego pushes the anxiety-provoking thoughts into the unconscious, thereby reducing the conscious awareness of the threat. The compulsions that follow are an attempt to undo the perceived damage or prevent the feared outcome. This defence mechanism is often seen in individuals with OCD, where they engage in ritualistic behaviors to alleviate the anxiety associated with their intrusive thoughts.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because while anxiety is a key component of OCD, the defence mechanism in OCD is not primarily an avoidance response. Avoidance is a coping mechanism, but it is not the primary defence mechanism in OCD.
**Option B:** This option is incorrect because while OCD can involve magical thinking, the defence mechanism in OCD is not primarily a magical thinking response. Magical thinking is a defence mechanism where individuals believe that their thoughts or actions can directly influence the world around them.
**Option C:** This option is incorrect because while OCD can involve a sense of responsibility for harm, the defence mechanism in OCD is not primarily a sense of responsibility response. This response is more commonly seen in individuals with anxiety disorders, such as generalized anxiety disorder.
**Clinical Pearl / High-Yield Fact**
It's essential to note that while the defence mechanism in OCD is primarily a response to anxiety, the underlying pathophysiology of OCD involves abnormalities in the cortico-striatal-thalamo-cortical (CSTC) circuitry, which is responsible for regulating motor control and habit formation. This can lead to the development of compulsive behaviors.
**Correct Answer: A. Repression. Repression is a defence mechanism where the ego pushes anxiety-provoking thoughts into the unconscious.**