Delay discounting is associated with the 2D:4D ratio in women but not men
Delay discounting is associated with the 2D:4D ratio in women but not men
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DOI：
10.1016/j.paid.2009.10.002
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发表时间：
2010-01-01
影响因子：
4.3
通讯作者：
Koff, Elissa
中科院分区：
文献类型：
--
作者：
Lucas, Margery;Koff, Elissa
延迟折扣（delay discounting）是许多冲动行为的典型特征，它是随着延迟时间的增加而降低对奖励的价值的倾向。本研究调查了184名男女大学生的延迟折扣和2D：4D比率之间的关系，2D：4D比率是产前雄激素暴露的一个建议标记。虽然男性2D：4D比率显著低于女性比率，但延迟折扣没有性别差异，手指比率和延迟折扣之间也没有总体关系。在女性中，右侧2D：4D比率与延迟折扣之间存在显著负相关，较低的比率与较大的延迟折扣相关。结果进行了讨论，在男性和女性的冲动的适应价值和可能的差异，产前与循环睾酮的影响的敏感性。(C)2009爱思唯尔有限公司版权所有。
The propensity to value a reward less as the delay to receive that reward increases is known as delay discounting and is typical of many forms of impulsive behavior. The current study investigated the relationship between delay discounting and the 2D:4D ratio, a proposed marker of prenatal androgen exposure, in 184 male and female college students. While male 2D:4D ratios were significantly lower than female ratios, there was no sex difference in delay discounting and no overall relationship between digit ratio and delay discounting. There was a significant negative correlation between the right 2D:4D ratio and delay discounting in women, with lower ratios associated with greater delay discounting. Results are discussed in terms of the adaptive value of impulsiveness in men and women and possible differences in sensitivity to the effects of prenatal versus circulating testosterone. (C) 2009 Elsevier Ltd. All rights reserved.