The relationships between diabetes mellitus and cognitive function wer
e studied in patients aged over 50 years with good metabolic control a
nd without chronic complications. The following tests were performed:
CES-D, Rey's, Benton's, Span's, Corsi's, MMSE, Raven's. No differences
were found in the comparison between groups (12 diabetics and 17 norm
als) contrary to other similar studies. This could be for the bad meta
bolic control of patients studied in previous studies or for the exist
ence of minimal deficit not shown with the conventional tests.