A putative social chemosignal elicits faster cortical responses than perceptually similar odorants
A putative social chemosignal elicits faster cortical responses than perceptually similar odorants
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DOI：
10.1016/j.neuroimage.2005.10.040
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发表时间：
2006-05-01
期刊：
影响因子：
5.7
通讯作者：
Hummel, Thomas
中科院分区：
文献类型：
--
作者：
Lundstroem, Johan N.;Olsson, Mats J.;Hummel, Thomas
社会化学信号，即所谓的信息素，最近引起了人们的极大关注，因为有报道称，它对女性的心理生理学和大脑皮质加工有影响。我们在这里测试了这样一种假设，即人脑处理一种假定的社会化学信号--内源性类固醇雄二酮--的速度比其他具有感知上匹配的强度和享乐特征的气味更快。本文记录了健康女性的化学感觉事件相关电位(ERP)。ERP分析表明，雄二烯酮的处理速度明显快于对照气味。雄二烯酮对所有记录到的事件相关电位成分的潜伏期都较短，但对晚期阳性反应最明显。这一发现表明，雄二烯酮的处理方式与其他相关气味物质不同，这表明主要嗅觉通路可能存在一个特定的神经元子系统，类似于之前在东半球猴子身上报道的那样，以及人类的情感视觉刺激。(C)2005 Elsevier Inc.保留所有权利。
Social chemosignals, so-called pheromones, have recently attracted much attention in that effects on women's psychophysiology and cortical processing have been reported. We here tested the hypothesis that the human brain would process a putative social chemosignal, the endogenous steroid androstadienone, faster than other odorants with perceptually matched intensity and hedonic characteristics. Chemosensory event-related potentials (ERP) were recorded in healthy women. ERP analyses indicate that androstadienone was processed significantly faster than the control odorants. Androstadienone elicited shorter latencies for all recorded ERP components but most so for the late positivity. This finding indicates that androstadienone is processed differently than other related odorants, suggesting the possibility of a specific neuronal subsystem to the main olfactory pathway akin to the one previously reported in Old-world monkeys and emotional visual stimuli in humans. (c) 2005 Elsevier Inc. All rights reserved.