OCD (Obsessive-Compulsive Disorder)

Obsessive-Compulsive Disorder (OCD) is characterized by two main features: **Obsessions:** Unwanted, intrusive thoughts, images, or urges that cause significant anxiety or distress. People with OCD do not want these thoughts and recognize they are excessive or irrational (ego-dystonic), yet cannot simply dismiss them. **Compulsions:** Repetitive behaviors or mental acts performed to reduce anxiety caused by obsessions, or to prevent something bad from happening. They provide temporary relief but strengthen the OCD cycle. **Common Obsession Themes:** - Contamination (germs, dirt, chemicals) - Harm (fear of hurting self or others) - Symmetry and exactness - Forbidden or taboo thoughts (sexual, violent, religious) - Need for certainty or completeness **Common Compulsions:** - Washing/cleaning - Checking (locks, stove, etc.) - Counting or repeating - Ordering/arranging - Mental rituals (praying, reviewing) - Seeking reassurance **OCD is NOT:** - Being neat or organized ("I am so OCD") - Double-checking things occasionally - Having preferences for order - Being careful or cautious **The OCD Cycle:** Obsession → Anxiety → Compulsion → Temporary Relief → Obsession returns stronger → More compulsions needed True OCD is time-consuming (1+ hours daily), causes significant distress, and impairs functioning.

OCD develops from biological vulnerabilities interacting with psychological and environmental factors: **Brain differences:** - Hyperactive circuits between orbitofrontal cortex, anterior cingulate cortex, and basal ganglia - The brain's "error detection" system is overactive - Difficulty with automatic filtering of thoughts **Neurotransmitter involvement:** - Serotonin dysregulation - Possibly glutamate abnormalities - Dopamine pathways **Genetic factors:** - OCD runs in families - Having a first-degree relative with OCD increases risk 4-fold - Multiple genes contribute small effects **Psychological factors:** - Inflated sense of responsibility - Belief that thoughts are equivalent to actions - Intolerance of uncertainty - Perfectionism **The role of learning:** - Compulsions provide relief, reinforcing the behavior - Avoidance prevents learning that fears are unfounded - The OCD "tricks" the brain into thinking compulsions prevent bad outcomes