Sex Differences in Cognition are Stable Over a 10-Year Period in Adulthood and Old Age
Titel:
Sex Differences in Cognition are Stable Over a 10-Year Period in Adulthood and Old Age
Auteur:
de Frias, Cindy M. Nilsson, Lars-Goran Herlitz, Agneta
Verschenen in:
Aging, neuropsychology, and cognition
Paginering:
Jaargang 13 (2006) nr. 3-4 pagina's 574-587
Jaar:
2006-12-01
Inhoud:
Sex differences in declarative memory and visuospatial ability are robust in cross-sectional studies. The present longitudinal study examined whether sex differences in cognition were present over a 10-year period, and whether age modified the magnitude of sex differences. Tests assessing episodic and semantic memory, and visuospatial ability were administered to 625 nondemented adults (initially aged 35-80 years), participating in the population-based Betula study at two follow-up occasions. There was stability of sex differences across five age groups and over a 10-year period. Women performed at a higher level than men on episodic recall, face and verbal recognition, and semantic fluency, whereas men performed better than women on a task-assessing, visuospatial ability. Sex differences in cognitive functions are stable over a 10-year period and from 35 to 90 years of age.