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There are a number of relevent meanings related to the tendency to persist :
- The tendency to continue to a particular behaviour beyond the point where it is useful. See Punding,Stimming, Stereotypy
- Uncontrollable repetition of a particular response, such as a word, phrase, or gesture, despite the absence or cessation of a stimulus, usually caused by brain injury or other neurological disorder.
- The tendency for a memory or idea to be maintained without any obvious stimulus for it. This implies internal mechanisms for the persistence of the phenomena (eg defence mechanism) and usually carries a negative connotation.