Executive functioning in older adults with mild cognitive impairment: MCI has effects on planning, but not on inhibition.
In this study, we compared executive functioning in 32 mild cognitive impairment (MCI) individuals with that of normally aging controls. Cognitive planning tests (Trail Making, Porteus Maze Test, verbal fluency tests) show a group difference favoring the normal controls, but tests for inhibition of prepotent responses (no-go accuracy, two measures of the Stroop effect, and negative priming) failed to uncover a significant group difference. The results indicate that there is no general executive control function impairment in MCI; rather, the deficits found are compatible with the hypothesis that MCI is an accelerated form of normal aging.
Zhang
Yanmin
Y
Chinese Academy of Sciences, Beijing, China. yzhang28@syr.edu
Han
Buxin
B
Verhaeghen
Paul
P
Nilsson
Lars-Göran
LG
D000368:Aged; D000369:Aged, 80 and over; D003072:Cognition Disorders / Q000503:physiopathology* / Q000523:psychology*; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007266:Inhibition, Psychological; D008297:Male; D009483:Neuropsychological Tests; D011340:Problem Solving / Q000502:physiology*