per.sev.er.a.tion
n.（名词）Psychology 【心理学】 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.持续症，言语重复症：对一种特定的反应难以控制的重复，如一个词、短语或手势，尽管没有受刺激或终止刺激，通常由脑部受伤或其他器官的紊乱引起The tendency to continue or repeat an act or activity after the cessation of the original stimulus.持续重复症：在最初的刺激停止后，继续或重复某个行为或活动的倾向The act or an instance of persevering; perseverance.执拗，顽梗：执拗的行为或事例；锲而不舍
