perseveration

noun

the act of persisting or persevering
維持するまたは保存する行為

continuing or repeating behavior
継続または繰り返す行動
- his perseveration continued to the point where it was no longer appropriate
  それがもはや適等でないポイントまで彼は保持し続けた
the tendency for a memory or idea to persist or recur without any apparent stimulus for it
目に見える刺激なく記憶、考えが継続するあるいは思い浮かぶ傾向