Developmental trajectories of verbal and visuospatial abilities in healthy older adults: comparison of the hemisphere asymmetry reduction in older adults model and the right hemi-ageing model.
Two models of cognitive ageing, the hemisphere asymmetry reduction in older adults (HAROLD) model and the right hemi-ageing model, were compared based upon the verbal memory and visuospatial task performance of 338 elderly participants. Comparison of the developmental trajectories for four age groups (50s, 60s, 70s and 80s) supported the HAROLD model, but not the right hemi-ageing model. Performance differences between the verbal memory and visuospatial tasks in the earlier age groups decreased in the later age groups. There was a sex difference in the cognitive-decline trajectories for verbal and visuospatial task performance after the 50s.
a Department of Health Sciences , Kansai University of Welfare Sciences , Osaka , Japan.
Takeshi
T
Hatta
Akihiko
A
Iwahara
Taketoshi
T
Hatta
Emi
E
Ito
Junko
J
Hatta
Chie
C
Hotta
Naoko
N
Nagahara
Kazumi
K
Fujiwara
Nobuyuki
N
Hamajima
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology* / Q000523:psychology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006803:Human Development; D006801:Humans; D008297:Male; D008568:Memory / Q000502:physiology*; D008875:Middle Aged; D008959:Models, Neurological; D009483:Neuropsychological Tests; D011597:Psychomotor Performance / Q000502:physiology*; D012727:Sex Characteristics; D013067:Speech Perception / Q000502:physiology*
Ageing; HAROLD model; Right hemi-ageing model; Sex differences; Verbal memory; Visuospatial function