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Journal Article

Citation

Archer J. Biol. Rev. Camb. Philos. Soc. 2019; 94(4): 1381-1415.

Affiliation

Department of Psychology, University of Central Lancashire, Preston, Lancashire PR1 2HE, U.K.

Copyright

(Copyright © 2019, John Wiley and Sons)

DOI

10.1111/brv.12507

PMID

30892813

Abstract

The aims of this article are: (i) to provide a quantitative overview of sex differences in human psychological attributes; and (ii) to consider evidence for their possible evolutionary origins. Sex differences were identified from a systematic literature search of meta-analyses and large-sample studies. These were organized in terms of evolutionary significance as follows: (i) characteristics arising from inter-male competition (within-sex aggression; impulsiveness and sensation-seeking; fearfulness; visuospatial and object-location memory; object-centred orientations); (ii) those concerning social relations that are likely to have arisen from women's adaptations for small-group interactions and men's for larger co-operative groups (person-centred orientation and social skills; language; depression and anxiety); (iii) those arising from female choice (sexuality; mate choice; sexual conflict). There were sex differences in all categories, whose magnitudes ranged from (i) small (object location memory; negative emotions), to (ii) medium (mental rotation; anxiety disorders; impulsivity; sex drive; interest in casual sex), to (iii) large (social interests and abilities; sociosexuality); and (iv) very large (escalated aggression; systemizing; sexual violence). Evolutionary explanations were evaluated according to whether: (i) similar differences occur in other mammals; (ii) there is cross-cultural consistency; (iii) the origin was early in life or at puberty; (iv) there was evidence for hormonal influences; and (v), where possible, whether there was evidence for evolutionarily derived design features. The evidence was positive for most features in most categories, suggesting evolutionary origins for a broad range of sex differences. Attributes for which there was no sex difference are also noted. Within-sex variations are discussed as limitations to the emphasis on sex differences.

© 2019 Cambridge Philosophical Society.


Language: en

Keywords

aggression; emotions; empathizing; evolution; gender similarities hypothesis; meta-analyses; sex differences; sexuality; social relations; systemizing

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