As Alzheimer's disease progresses to the late stage (stage 4),impairment of functioning is pervasive.Which symptom does not usually appear until this final stage of the disorder?

Question

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Hypermetamorphosis,the process of touching everything in one's environment as a way of sensing or familiarizing oneself with those objects,occurs during the fourth stage of Alzheimer's disease.Agnosia appears by the third stage,confabulation usually during the second stage,and social withdrawal starts in the first phase.

As Alzheimer's Disease Progresses to the Late Stage (Stage 4),impairment