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Effects of gender and sexual orientation on evolutionarily relevant aspects of human mating psychology.
Sexual selection theory provides a powerful model for the analysis of psychological sex differences. This research examined (a) tests of several sex differences in mating psychology predicted fromExpand
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Sex hormones and finger length: What does 2D:4D indicate?
Abstract Much recent research has focused on the ratio of the lengths of the second to fourth manual digits (2D:4D) as a predictor of the degree of expression of sexually dimorphic and otherExpand
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Dominance and the evolution of sexual dimorphism in human voice pitch
The developmental and anatomical causes of human voice sexual dimorphisms are known, but the evolutionary causes are not. Some evidence suggests a role of intersexual selection via female mateExpand
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Evolution of spatial cognition: sex-specific patterns of spatial behavior predict hippocampal size.
In a study of two congeneric rodent species, sex differences in hippocampal size were predicted by sex-specific patterns of spatial cognition. Hippocampal size is known to correlate positively withExpand
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Costs and benefits of fat-free muscle mass in men: relationship to mating success, dietary requirements, and native immunity
On average, men have 61% more muscle mass than women (d=3), a sex difference which is developmentally related to their much higher levels of testosterone. Potential benefits of greater male muscleExpand
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Superior spatial memory of women: Stronger evidence for the gathering hypothesis
Abstract Male and female college students played the commercial game Memory TM , which required them to recall the location of previously viewed items, and also completed a 20-item mental rotationExpand
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Why Sex Matters: A Darwinian Look at Human Behavior
Why Sex Matters:. Darwinian Look at Human Behavior. Bobbi S. Low. Princeton, NJ: Princeton University Press, 2000. 412 pp.
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Spatial memory and adaptive specialization of the hippocampus
The hippocampus plays an important role in spatial memory and spatial cognition in birds and mammals. Natural selection, sexual selection and artificial selection have resulted in an increase in theExpand
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Men's voices as dominance signals: vocal fundamental and formant frequencies influence dominance attributions among men
Men's vocal folds and vocal tracts are longer than those of women, resulting in lower fundamental frequency (F0) and closer spacing of formant frequencies (formant dispersion, Df) in men than inExpand
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Matrilateral biases in the investment of aunts and uncles
In a study of the kin investment of aunts and uncles we show that the laterality effect expected as a result of paternity uncertainty is statistically reliable but somewhat smaller than the sexExpand
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