perseveration

Noun

 * 1)  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 organic disorder.
 * 2)  The tendency to continue or repeat an act or activity after the cessation of the original stimulus.
 * 3) The act or an instance of persevering; perseverance.
 * 4)  Argument by repetition; a mantra.

Related terms

 * perseverance
 * perseverate