A person with dementia may do or say something over and over. This can be a word or phrase, question or activity, or undo something that has just been completed. In most cases, the person is most likely looking for comfort, security and familiarity.
The main cause of behavioral symptoms in dementia is the deterioration of brain cells. This causes a decline in the individual’s ability to make sense of the world around them. With repetition, the person may not remember that they have just asked a question or completed a task.
Read Repetitive Behavior with dementia patients.