Oxytocin increases bias, but not accuracy, in face recognition line-ups
Oxytocin increases bias, but not accuracy, in face recognition line-ups
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DOI：
10.1093/scan/nsu150
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发表时间：
2015-07-01
影响因子：
4.2
通讯作者：
Bussunt, Amanda
中科院分区：
文献类型：
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作者：
Bate, Sarah;Bennetts, Rachel;Bussunt, Amanda
先前的研究表明，鼻内吸入催产素可以提高面部识别技能，这提高了它用于安全设置的可能性。然而，目前还不清楚催产素是否直接作用于核心的面部处理系统本身或间接提高面部识别通过情感或社会显着性机制。在一项双盲试验中，60名参与者在完成十分之一任务之前接受了催产素或安慰剂鼻喷雾剂，这是一项标准化的陌生面孔识别测试，包括目标存在和目标不存在的队列。在目标存在的试验中，催产素条件下的参与者表现优于安慰剂条件下的参与者，但在目标缺失的试验中更容易犯假阳性错误。信号检测分析表明，催产素诱导更自由的反应偏差，而不是增加准确性本身。这些研究结果支持社会显着帐户的催产素对人脸识别的影响，并表明催产素可能会阻碍人脸识别在某些情况下。
Previous work indicates that intranasal inhalation of oxytocin improves face recognition skills, raising the possibility that it may be used in security settings. However, it is unclear whether oxytocin directly acts upon the core face-processing system itself or indirectly improves face recognition via affective or social salience mechanisms. In a double-blind procedure, 60 participants received either an oxytocin or placebo nasal spray before completing the One-in-Ten task-a standardized test of unfamiliar face recognition containing target-present and target-absent line-ups. Participants in the oxytocin condition outperformed those in the placebo condition on target-present trials, yet were more likely to make false-positive errors on target-absent trials. Signal detection analyses indicated that oxytocin induced a more liberal response bias, rather than increasing accuracy per se. These findings support a social salience account of the effects of oxytocin on face recognition and indicate that oxytocin may impede face recognition in certain scenarios.