Gray matter in amnestic mild cognitive impairment: voxel-based morphometry.
Multiple regression voxel-based morphometry analyses were used to examine the relationship between regional gray matter volumes and neurocognitive performance in 10 patients with amnestic mild cognitive impairment and 20 healthy age-matched controls. Cognitive functioning was assessed with seven standardized neuropsychological tests. Patients with amnestic mild cognitive impairment exhibited impaired cognitive performance (on the Mini Mental State Examination, tests of verbal fluency, verbal and spatial learning and memory, and visual-motor abilities) and reduced gray matter volume in the right temporal pole. Across all participants, better performance on several neuropsychological tests was associated with higher regional gray matter volumes. Voxel-based morphometry provides an operator-unbiased means to investigate volumetric differences, which may be related to impaired neuropsychological functioning.
Bonekamp
David
D
The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University, Baltimore, Maryland, USA.
Yassa
Michael A
MA
Munro
Cynthia A
CA
Geckle
Rena J
RJ
Yousem
David M
DM
Barker
Peter B
PB
Schretlen
David J
DJ
Brandt
Jason
J
Horská
Alena
A
D000368:Aged; D000369:Aged, 80 and over; D000647:Amnesia / Q000473:pathology* / Q000503:physiopathology / Q000523:psychology; D002540:Cerebral Cortex / Q000473:pathology* / Q000503:physiopathology; D003071:Cognition; D003072:Cognition Disorders / Q000473:pathology* / Q000523:psychology; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008568:Memory; D008609:Mental Status Schedule; D009483:Neuropsychological Tests; D011597:Psychomotor Performance; D012044:Regression Analysis; D012720:Severity of Illness Index; D013037:Spatial Behavior; D013702:Temporal Lobe / Q000473:pathology* / Q000503:physiopathology; D014706:Verbal Learning