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Obsessive Compulsive Disorder

Obsessive Compulsive Disorder. NUR 114. Obsessive-Compulsive Disorder (2-3%) of population) Obsessive-compulsive disorder: A mental disorder characterized by obsessions and compulsions. Obsession: An unwanted thought or idea with which a person is preoccupied.

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Obsessive Compulsive Disorder

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  1. Obsessive Compulsive Disorder NUR 114

  2. Obsessive-Compulsive Disorder(2-3%) of population) • Obsessive-compulsive disorder: • A mental disorder characterized by obsessions and compulsions. • Obsession: • An unwanted thought or idea with which a person is preoccupied. • e.g., “I left the doors unlocked!” • Compulsion: • The feeling that one is obliged to perform a behavior, even if one prefers not to do so. • Checking behaviors (keep checking the doors)

  3. Examples of obsessions: • Concern for order and constancy • Cleanliness (body or living space) • Forbidden sexual thoughts • Examples of compulsions: • Hand washing • Checking • Collecting • Repeating behaviors (in and out of a door) • Arranging things • Cleaning

  4. Obsessive-Compulsive Disorder • Possible Causes: • Genetic Origin: • Evidence is beginning to accumulate suggesting that OCD might have a genetic origin. Appears with Tourette’s syndrome • Brain Damage (from trauma) • Basal ganglia, cingulate, frontal cortex

  5. Treatment • Serotonin's involvement in impulse control via orbitofrontal cortex and basil ganglia (both receive SE input) • SSRIs are most effective • Serotonin antagonists worsen symptoms

  6. Obsessive-Compulsive Disorder • Possible Causes: • Tourette’s syndrome: • A neurological disorder characterized by tics and involuntary vocalizations and sometimes by compulsive uttering of obscenities and repetition of the utterances of others. • Treatment with antipsychotics (dopamine antagonists, D2)

  7. Obsessive-Compulsive Disorder • Possible Causes: • Cingulotomy: • The surgical destruction of the cingulum bundle, which connects the prefrontal cortex with the limbic system; helps to reduce intense anxiety and the symptoms of obsessive-compulsive disorder. • Only used on patients who are unresponsive to drug treatment.

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