PERSEVERATION
perseverance, persistence, perseveration
(noun) the act of persisting or persevering; continuing or repeating behavior; “his perseveration continued to the point where it was no longer appropriate”
perseveration
(noun) the tendency for a memory or idea to persist or recur without any apparent stimulus for it
Source: WordNet® 3.1
Noun
perseveration (plural perseverations)
(psychology) 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.
(psychology) The tendency to continue or repeat an act or activity after the cessation of the original stimulus.
The act or an instance of persevering; perseverance.
Argument by repetition; a mantra.
Source: Wiktionary