The role of the anterior cingulate cortex in women's sexual decision making.
The role of the anterior cingulate cortex in women's sexual decision making.
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DOI：
10.1016/j.neulet.2008.10.083
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发表时间：
2009-01-02
影响因子：
2.5
通讯作者：
Heiman JR
中科院分区：
文献类型：
--
作者：
Rupp HA;James TW;Ketterson ED;Sengelaub DR;Janssen E;Heiman JR
妇女的性决策是一个复杂的过程，既要平衡怀孕和快乐的潜在回报，又要平衡可能缺乏父亲照顾或性传播感染的风险。虽然社会决策的神经过程与经济决策的神经过程重叠，但与女性性决策相关的神经系统尚不清楚。使用功能磁共振成像，我们测量了12名女性在观看男性面部照片时的大脑活动。面部刺激伴随着关于每个男性作为性伴侣的潜在风险的信息，通过书面描述该男性以前的性伴侣数量和使用避孕套的频率来表示。参与者被要求评估他们与描绘的男人发生性关系的可能性。女性报告说，与高风险男性相比，她们更有可能与低风险男性发生性关系。刺激描绘低风险的男性也引起了更强的激活前扣带皮层（ACC），中脑，顶内沟，可能反映了女性的吸引力，唤醒和注意力的性风险的影响，在他们的性决策。激活在前扣带与妇女的主观评价性的可能性和响应时间在他们的评估高，但不是低风险的男性。这些发现提供的证据表明，参与女性性决策的神经系统与先前描述的非性决策的神经系统重叠。
Women’s sexual decision making is a complex process balancing the potential rewards of conception and pleasure against the risks of possible low paternal care or sexually transmitted infection. Although neural processes underlying social decision making are suggested to overlap with those involved in economic decision making, the neural systems associated with women’s sexual decision making are unknown. Using fMRI, we measured the brain activation of 12 women while they viewed photos of men’s faces. Face stimuli were accompanied by information regarding each man’s potential risk as a sexual partner, indicated by a written description of the man’s number of previous sexual partners and frequency of condom use. Participants were asked to evaluate how likely they would be to have sex with the man depicted. Women reported that they would be more likely to have sex with low compared to high risk men. Stimuli depicting low risk men also elicited stronger activation in the anterior cingulate cortex (ACC), midbrain, and intraparietal sulcus, possibly reflecting an influence of sexual risk on women’s attraction, arousal, and attention during their sexual decision making. Activation in the ACC was positively correlated with women’s subjective evaluations of sex likelihood and response times during their evaluations of high, but not low, risk men. These findings provide evidence that neural systems involved in sexual decision making in women overlap with those described previously to underlie nonsexual decision making.
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