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贝康招聘

睾丸激素分泌过多会让人变得固执和协调能力差

2012/02/02 来源:Dailymail
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即便大男人主义的男性不太认可,这一结论——在工作岗位睾丸激素会引起不好的结果——仍然得到实验的验证。

睾丸激素分泌过多的个体更可能过度自信和固执即便大男人主义的男性不太认可,这一结论——在工作岗位睾丸激素会引起不好的结果——仍然得到实验的验证。

研究表明,睾丸激素分泌过多的个体更可能过度自信和固执,因此,雄性激素分泌水平的提高会引起合作能力低。

在虚拟的工作环境中,过多的睾丸激素关联到的调查对象往往是个人主义者和以自利为倾向的选择者。

Nick Wright博士来自伦敦大学威康信托中心,他说:“睾丸激素会影响我们的决定,并让我们变得更加个人主义。多数情况下,睾丸激素允许我们寻求问题的最佳解决方案,但有时候,过多的分泌量会让我们无视别人的观点。当杰出个人试图让陪审团认可所持有的观点时,这可能尤为重要。”

来自伦敦大学的研究人员对17对雌性自愿者进行实验,在为期2天间隔一周的时间内,每对自愿者服用睾丸激素添加剂,然后接受安慰剂。

她们执行基于计算机的任务用以估测协助水平,当同意显示的图像时,她们可切换到下一个实验;如果不同意,她们被要求讨论问题,并达成一致的看法。

这项研究发表在《皇家学会学报B学报》(Proceedings of the Royal Society B)上,并暗示了杰出个人影响群体决定的方式。

Nick Wright博士称:“在群体中做决定时,我们会选择介于协助和自利之间的合理分界线。太多的协助让我们丢失自己的主见,而过分地以自我为中心,往往会忽略那些具有真知灼见的人。”

之前的研究表明,另一种激素(后叶催产素)让人们更可能去交流和协作。Wrigh博士称:“行为看起来受激素支配,我们已经知道后叶催产素能让我更加协助,但如果这是仅有的能影响群体决定的激素,那么我们的决定仍是倾斜的。”

睾丸激素在一系列社会行为中发挥作用,对黑猩猩的研究发现,激素水平的提高常常引起争吵和冲突,此外,睾丸激素水平较高的雌性囚禁黑猩猩往往关联到反社会行为和攻击性的提高。


Testosterone disrupts human collaboration by increasing egocentric choices

Nick Wright,Bahador Bahrami,Emily Johnson,Gina Di Malta,Christopher D. Frith and Raymond J. Dolan

Collaboration can provide benefits to the individual and the group across a variety of contexts. Even in simple perceptual tasks, the aggregation of individuals' personal information can enable enhanced group decision-making. However, in certain circumstances such collaboration can worsen performance, or even expose an individual to exploitation in economic tasks, and therefore a balance needs to be struck between a collaborative and a more egocentric disposition. Neurohumoral agents such as oxytocin are known to promote collaborative behaviours in economic tasks, but whether there are opponent agents, and whether these might even affect information aggregation without an economic component, is unknown. Here, we show that an androgen hormone, testosterone, acts as such an agent. Testosterone causally disrupted collaborative decision-making in a perceptual decision task, markedly reducing performance benefit individuals accrued from collaboration while leaving individual decision-making ability unaffected. This effect emerged because testosterone engendered more egocentric choices, manifest in an overweighting of one's own relative to others' judgements during joint decision-making. Our findings show that the biological control of social behaviour is dynamically regulated not only by modulators promoting, but also by those diminishing a propensity to collaborate.

文献链接:http://rspb.royalsocietypublishing.org/content/early/2012/01/27/rspb.2011.2523.abstract?sid=225ba9d4-1d85-4f58-ab9c-9b46775c35e6

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