perseveration

IPA: pɝsʌvˈɪrˈeɪʃʌn

(derogatory, 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.
(derogatory, psychology) The tendency to continue or repeat an act or activity after the cessation of the original stimulus.
(derogatory) The act or an instance of persevering; perseverance.
(derogatory) Argument by repetition; a mantra.

Examples of "perseveration" in Sentences

His perseveration on the subject of conspiracy theories was starting to alienate his friends
The student's perseveration on getting a perfect grade caused her unnecessary stress
The therapist recognized the perseveration in her patient's speech patterns as a symptom of OCD
Despite facing numerous setbacks, his perseveration on achieving his goal never wavered
The perseveration in her thoughts about past mistakes was hindering her ability to move forward