Ninety aged patients at the Philadelphia Geriatric Center were asked to give answers to a 35-item mental status questionnaire which included a new visual counting test. By this mean it was found that 20 of the 90 subjects were not mentally impaired, but 34 had mild dementia, 17 moderate dementia, and 19 servere dementia. These results proved to be well correlated with the clinical findings. The test records showed that as dementia develops, the first thing to be forgotten is the awareness of time, place and recognition (in that order). Then the ability to count disappears. As mental oblivion intervenes, the last thing the patient forgets is his/her own name. It was also noted that patients with mild senile dementia fared better when kept with a similar group than with patients who have moderate or severe dementia.

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