Multiple psychological and biological factors may be involved in causing obsessive-compulsive syndromes.

Too much serotonin, on the other hand, can lead to the manic cautiousness marked by obsessive-compulsive syndrome.

He's a paranoid, with an obsessive-compulsive syndrome.

He suffered from that obsessive-compulsive syndrome?

We are now in the realm of pathology, something like foreign policy as obsessive-compulsive syndrome or, worse, as a mirror image of the island's own deplorable "hard line."

Kraepelin had referred to psychopathic conditions (or 'states') in his 1896 edition, including compulsive insanity, impulsive insanity, homosexuality, and mood disturbances.