Abstract
Despite some evidence of greater age-related deterioration of the brain in males than in females, gender differences in rates of cognitive aging have proved inconsistent. The present study employed web-based methodology to collect data from people aged 20–65 years (109,612 men; 88,509 women). As expected, men outperformed women on tests of mental rotation and line angle judgment, whereas women outperformed men on tests of category fluency and object location memory. Performance on all tests declined with age but significantly more so for men than for women. Heterosexuals of each gender generally outperformed bisexuals and homosexuals on tests where that gender was superior; however, there were no clear interactions between age and sexual orientation for either gender. At least for these particular tests from young adulthood to retirement, age is kinder to women than to men, but treats heterosexuals, bisexuals, and homosexuals just the same.
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Notes
Effect sizes (partial eta squared, η 2) are reported, which indicate the proportion of variance accounted for by the independent variable or interaction between variables. Cohen (1988) suggested that η 2 values of .01, .06, and .14 can be taken to indicate small, medium, and large effects, respectively.
These results for medicine intake were qualitatively unaffected when those who reported being on hormone replacement therapy (around 2,000) were also excluded from the analysis.
We do not know if the additional 5 s taken by women was spent in the encoding or recognition phases (or both) because only the total time taken to complete the task was recorded.
We are grateful to an anonymous reviewer for this suggestion.
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The first and second authors contributed equally to the preparation of this article. We are grateful to the British Broadcasting Corporation (BBC) for their extensive collaboration on this project, and to Qazi Rahman and Friederike Schlaghecken for helpful comments on an earlier version of the manuscript.
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Maylor, E.A., Reimers, S., Choi, J. et al. Gender and Sexual Orientation Differences in Cognition Across Adulthood: Age Is Kinder to Women than to Men Regardless of Sexual Orientation. Arch Sex Behav 36, 235–249 (2007). https://doi.org/10.1007/s10508-006-9155-y
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DOI: https://doi.org/10.1007/s10508-006-9155-y