Obsessive–compulsive disorder
A form of psychotherapy called "cognitive behavioral therapy" (CBT) and psychotropic medications are first-line treatments for OCD. Other forms of psychotherapy, such as psychodynamic and psychoanalysis may help in managing some aspects of the disorder, but in 2007 the American Psychiatric Association (APA) noted a lack of controlled studies showing their effectiveness "in dealing with the core symptoms of OCD". The fact that many individuals do not seek treatment may be due in part to stigma associated with OCD.
Marble burying
The test is sensitive to two major classes of drugs the Selective Serotonin (5-HT) reuptake inhibitors (SSRIs) and benzodiazepines. Benzodiazepines are commonly used to treat anxiety and SSRIs are used to treat both OCD and anxiety.