Obsessive Compulsive Disorder from the Biological Perspective

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Another way to look at OCD is from the biological perspective, which looks at the genetics, biochemical and brain structure of a person to find a reason why a person acts this way and develops OCD. Genetic studies have demonstrated that both biological and environmental factors are important to the development of OCD. No specific gene for OCD has yet been identified. Twin studies confirmed that there is a genetic component that causes OCD. Many researchers found that, in twin studies, monozygotic twins were more concordant with OCD than dizygotic twins were. The higher concordance in monozygotic twins than dizygotic twins imply that there is some type of genetic transmission. The fact that the concordance rate in monozygotic twins is not 100% points out that environmental factors may have an influence on the development of OCD as well. Studies have also shown that OCD is also familial and runs in families. The families of a person who is diagnosed with OCD have higher risk of developing OCD and tics disorders, which are repetitive movements and sounds, than does the general population. Studies have proved that parents, siblings and children of a person with OCD, have higher risk of developing OCD than does someone with no family history of the disorder, but this may only be correct for some kinds of OCD. For example, familial factors include the age of onset, which is that childhood-onset OCD have a tendency to run in families, and family history of tic-related disorders like Tourette’s disorder. Tourette’s disorder is a disorder, which causes a person to make repetitive movements and sounds that they cannot control. Preparedness theory of phobia is a concept developed to explain why specific connections to objects are learned... ... middle of paper ... ...after the infection. The infection itself does not cause OCD but elicits symptoms of OCD in children who have a genetic tendency to develop it. Treatment: There are three possible ways to treat OCD: psychotherapy, CBT, and medications. For medication, it has been found that serotonin reuptake inhibitors (SRIs) are effective in treating OCD, which increases the level of serotonin in the brain. SRIs belong to a group of drugs called antidepressants. Antidepressants include: clomipramine, fluoxetine, fluvoxamine, paroxetine, and sertraline. Clomipramine is very different from the rest of them because the other antidepressants mainly affect serotonin only and they are called selective serotonin reuptake inhibitors (SSRIs). However, clomipramine affects other neurotransmitters, which causes more side effects than SSRIs. And this is why doctors prescribe SSRIs first.

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