Compulsions

Definition: The behavior of performing an act persistently and repetitively without it leading to reward or pleasure. The act is usually a small, circumscribed behavior, almost ritualistic, yet not pathologically disturbing. Examples of compulsive behavior include twirling of hair, checking something constantly, not wanting pennies in change, straightening tilted pictures, etc.

Synonyms (terms occurring on more labels are shown first): compulsions, Compulsive Behaviors, obsessive- compulsive behavior, Compulsive behaviour

More information: PubMed search and possibly Wikipedia