Sex ratio influences the motivational salience of facial attractiveness.
Sex ratio influences the motivational salience of facial attractiveness.
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DOI：
10.1098/rsbl.2014.0148
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发表时间：
2014-06
期刊：
影响因子：
3.3
通讯作者：
Jones BC
中科院分区：
文献类型：
--
作者：
Hahn AC;Fisher CI;DeBruine LM;Jones BC
在许多物种中，当地种群的性别比例影响与交配相关的行为。最近的实验表明，偏向男性的性别比例增加了男性投资于潜在配偶的经济资源，这表明性别比例影响人类交配努力的分配。为了进一步研究这个问题，我们测试了当地人口性别比例的线索对同性和异性面孔吸引力动机突显的影响。我们使用了一项基于努力的按键任务，在这项任务中，通过操纵男性和女性图像的比例，在样本中评估了面部吸引力的动机突出度。有吸引力的异性面孔，而不是同性面孔，在性别偏向(对配偶的高度竞争)条件下比异性偏向(对配偶的低竞争)条件下的动机突显更强。此外，这一效应不受参与者性别的影响。这些结果提供了性别比例影响人类交配相关行为的新证据。他们还提出了第一个证据，表明当地人口的性别比例可能会影响女性和男性交配努力的分配。
The sex ratio of the local population influences mating-related behaviours in many species. Recent experiments show that male-biased sex ratios increase the amount of financial resources men will invest in potential mates, suggesting that sex ratios influence allocation of mating effort in humans. To investigate this issue further, we tested for effects of cues to the sex ratio of the local population on the motivational salience of attractiveness in own-sex and opposite-sex faces. We did this using an effort-based key-press task, in which the motivational salience of facial attractiveness was assessed in samples of faces in which the ratio of male to female images was manipulated. The motivational salience of attractive opposite-sex, but not own-sex, faces was greater in the own-sex-biased (high competition for mates) than in the opposite-sex-biased (low competition for mates) condition. Moreover, this effect was not modulated by participant sex. These results present new evidence that sex ratio influences human mating-related behaviours. They also present the first evidence that the perceived sex ratio of the local population may modulate allocation of mating effort in women, as well as men.
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DOI：
10.1073/pnas.0810016106
发表时间：
2009-02-17
影响因子：
11.1
作者：
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通讯作者：
Nettle, Daniel
影响因子：
1.7
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影响因子：
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影响因子：
16.2
作者：
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Breiter, HC
影响因子：
7.6
作者：
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