A 3-yr follow-up study on the trend of memory performance in 9 elderly subjects with selective memory defects, which was carried out in an attempt to clarify the evolution of the disorder, revealed marked worsening of sensory visual memory, retention capacity and recent memory. No other mental function was compromised. The results of this study suggest that the onset of a selective memory defect in the elderly is not necessarily the expression of a demential amnestic syndrome, but rather the manifestation of a senile brain deterioration limited to the anatomo-functional memory system.
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