Department of Psychology, University of Wuppertal, Germany.
Arch Sex Behav. 2011 Jun;40(3):565-74. doi: 10.1007/s10508-010-9698-9. Epub 2010 Nov 10.
Recent studies have shown that preferences for close relationships (Long-Term Relationship Orientation) are independent of preferences for various sexual partners (Short-Term Relationship Orientation). In the current studies, we hypothesized that Short-Term Relationship Orientation would be negatively related to 2D:4D finger-length ratio (i.e., the more masculine, the higher Short-Term Relationship Orientation). Study 1 found a negative relationship between Short-Term Relationship Orientation and right, but not left, hand 2D:4D among 91 male participants. Study 2 found a negative relationship between Short-Term Relationship Orientation and left, but not right, hand 2D:4D among 65 male participants, even after controlling for age, relationship status, social desirability, and sex drive. Female participants (n = 142) did not show this relationship in Study 2. This sex difference was discussed in terms of flexible female sexual strategies, which are supposed to be contingent on the local environment or menstrual cycle variations.
最近的研究表明，对亲密关系的偏好（长期关系取向）与对各种性伴侣的偏好（短期关系取向）是独立的。在当前的研究中，我们假设短期关系取向与 2D:4D 手指长度比（即，越男性化，短期关系取向越高）呈负相关。研究 1 在 91 名男性参与者中发现短期关系取向与右手 2D:4D 之间存在负相关关系，但左手 2D:4D 则没有。研究 2 在 65 名男性参与者中发现短期关系取向与左手 2D:4D 之间存在负相关关系，但右手 2D:4D 则没有，即使在控制了年龄、关系状况、社会期望和性欲等因素后也是如此。在研究 2 中，女性参与者（n=142）没有表现出这种关系。这种性别差异是根据灵活的女性性策略来讨论的，这些策略应该取决于当地环境或月经周期的变化。
