[1] "The disorders are thought to lie on a spectrum from impulsive to compulsive where impulsivity is said to persist due to deficits in the ability to inhibit repetitive behavior with known negative consequences, while compulsivity persists as a consequence of deficits in recognizing completion of tasks.
[4] The model suggests that many conditions overlap with OCD in symptomatic profile, demographics, family history, neurobiology, comorbidity, clinical course and response to various pharmacotherapies.
Within the population of patients with OCD up to 40% have a history of a tic disorder and 60% of people with Tourette's syndrome have obsessions and/or compulsions.
Course of illness is another factor that suggests correlation because it has been found that tics displayed in childhood are a predictor of obsessive and compulsive symptoms in late adolescence and early adulthood.
[citation needed] Trichotillomania is a body-focused repetitive behavior disorder which causes an individual to pull out their hair from various parts of their body without a purpose.
[citation needed] Review articles recommend behavioral interventions such as habit reversal training[16] and decoupling.