Cerebral Dysfunction and Intellectual Impairment in Old Age

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Science  10 Nov 1961:
Vol. 134, Issue 3489, pp. 1518-1519
DOI: 10.1126/science.134.3489.1518


There is a marked decline in some intellectual abilities in old age. It is frequently hypothesized that impaired cerebral physiology accounts for some of this deficit. In old age the critical flicker frequency, a measure sensitive to cerebral dysfunction, is correlated with aging intellectual abilities. This is interpreted as evidence supporting the above hypothesis.