Journal ArticleDOI
Adaptation to Sperm Competition in Humans
TLDR
Psychological, behavioral, physiological, and anatomical evidence indicates that men have evolved solutions to combat the adaptive problem of sperm competition, but research has only just begun to uncover these adaptations.Abstract:
With the recognition, afforded by recent evo- lutionary science, that female infidelity was a recurrent feature of modern humans' evolutionary history has come the development of a unique area in the study of human mating:spermcompetition.Aformofmale-malepostcopul- atory competition, sperm competition occurs when the sperm of two or more males concurrently occupy the re- productivetractofafemaleandcompetetofertilizeherova. Malesmustcompeteformates,butiftwoormoremaleshave copulated with a femalewithina sufficiently short periodof time, sperm will compete for fertilizations. Psychological, behavioral, physiological, and anatomical evidence indi- cates that men have evolved solutions to combat the adap- tive problem of sperm competition, but research has only just begun to uncover these adaptations. KEYWORDS—sperm competition; anti-cuckoldry; sexual conflict; female infidelity; evolutionary psychologyread more
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Does sexual selection explain human sex differences in aggression
TL;DR: It is argued that the magnitude and nature of sex differences in aggression, their development, causation, and variability, can be better explained by sexual selection than by the alternative biosocial version of social role theory.
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Emotion and decision making explained
TL;DR: In this article, the authors seek explanations of emotion and decision-making by considering the relation between emotion, and reward value, and subjective feelings of pleasure, and how the brain implements decision making, and are gene-defined rewards and emotions in the interests of the genes, and does rational multistep planning enable us to go beyond selfish genes to long-term plans and social contracts in the interest of the individual.
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Sexual Coercion in Intimate Relationships: A Comparative Analysis of the Effects of Women’s Infidelity and Men’s Dominance and Control
TL;DR: Regression analyses indicated that men’s sexual coercion of their partners was consistently predicted by female infidelity and men”s controlling behavior, suggesting that both variables are necessary to explain men's sexual coercion.
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Of mice and men: what animal research can tell us about context effects on automatic responses in humans.
Bertram Gawronski,Joseph Cesario +1 more
TL;DR: Theoretical concepts of animal research not only provide novel insights into the processes and representations underlying context effects on automatic responses in humans; they also offer new perspectives on the interface between affect, cognition, and motivation.
BookDOI
Intimate-Partner Violence
TL;DR: In this paper, a review examines multiple forms of intimate partner violence, including women's use of violence, and argues for development of more complex conceptualizations of Intimate Partner Violence.
References
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Journal ArticleDOI
Sperm competition and its evolutionary consequences in the insects
TL;DR: In this article, Simpson et al. describe a method to solve the problem of homonymity in Bee W l d 34, 14) and show that it works well in beekeeping.
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How Well Does Paternity Confidence Match Actual Paternity? Evidence from Worldwide Nonpaternity Rates
TL;DR: Evolutionary theory predicts that males will provide less parental investment for putative offspring who are unlikely to be their actual offspring, and crossculturally, paternity confidence (a mans ass...
Journal ArticleDOI
The evolutionary psychology of men's coercive sexuality
TL;DR: The authors examined six testable predictions against existing data: (1) both coercive and non-coercive will be associated with high levels of sexual arousal and performance in men, and (2) achieving physical control of a sexually unwilling woman will be sexually arousing to men.
Journal ArticleDOI
Image content influences men's semen quality.
TL;DR: It is shown that, after controlling for lifestyle factors known to influence semen quality, human males viewing images depicting sperm competition had a higher percentage of motile sperm in their ejaculates.
Journal ArticleDOI
Human sperm competition: ejaculate adjustment by males and the function of masturbation
R. Robin Baker,Mark A. Bellis +1 more
TL;DR: M masturbation is a male strategy to increase sperm fitness without increasing sperm numbers in the female tract as a function of risk of sperm competition; female reproductive value; and optimum partitioning of ejaculates between successive in-pair copulations.