Domain : Symptoms

Category : My daily life

Simplified definition

Uncontrolled and inappropriate repetition of a gesture, a word, or a sentence despite a change in a discussion or a situation.

Source: Houria Aiouaz, for Alzheimer Foundation

Referenced definition

“Persistence at tasks or in particular way of doing things long after the behavior has ceased to be functional or effective; continuance of the same behavior despite repeated failures or clear reasons for stopping.”

Source: American Psychiatric Association. The Diagnostic and Statistical Manual of Mental Disorders. Fifth Edition. San Francisco: 2013.



  • This term is mainly used in the plural form.
  • For example, the patient thinks about their Christmas present and the topic changes to what the family make for dinner on that day, then the patient returns to the topic of their Christmas present.
  • Perseveration is different from stereotypy as it is linked to the difficulty of moving from one task to another.



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