Triarchic theories of intelligence: Aristotle and Sternberg.

Aristotle's triarchic theory of intelligence prefigures, but apparently does not serve directly as a source for, Sternberg's comparable contemporary theory. The indepently derived similarities in their gross structure lend weight to some triarchic view. Sternberg's analytical, practical, and creative intelligences closely resemble Aristotle's theoretical, practical, and productive excellences of intelligence.

Age-related neuropsychological deficits in Down's syndrome.

Down's syndrome (DS) has been suggested as a high-risk condition for Dementia Alzheimer's type (DAT). In the present study, neuropsychological variables were assessed in 165 DS subjects and 163 matched mentally retarded controls. Overall, DS subjects had lower scores for orientation, digit span, visual memory, object-naming, and general knowledge, as well as more "released" reflexes.

Testicular atrophy in the spontaneously diabetic BB Wistar rat.

Complete gross and microscopic postmortem examinations were performed on 100 BB Wistar diabetic rats, 27 BB Wistar nondiabetic siblings, and 41 Wistar rats, and the incidence of testicular lesions was tabulated. Testicular atrophy was the predominant finding in all three groups of rats, but atrophy occurred at a much younger age in the diabetic rats. There was a strong relationship between the duration of diabetes and the presence of atrophy, which was stronger than the relationship between age and atrophy.