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Compulsive behaviour

From Biology-Online Dictionary | Biology-Online Dictionary
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Compulsive behaviour

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