Individual differences in valence modulation of face-selective M170 response.
Individual differences in valence modulation of face-selective M170 response.
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DOI：
10.1037/a0014487
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发表时间：
2009-02
期刊：
影响因子：
4.2
通讯作者：
Ungerleider, Leslie G.
中科院分区：
文献类型：
--
作者：
Japee, Shruti;Crocker, Laura;Carver, Frederick;Pessoa, Luiz;Ungerleider, Leslie G.
脑磁图被用来研究个体差异的影响，情绪面孔处理的时间动态分组的基础上，他们的能力，以检测掩盖的效价负荷刺激的主题。受试者的工作特征曲线和非参数敏感性测量被用来归类为那些可以和不能可靠地检测简要介绍了可怕的面孔，向后掩盖的中性面孔。结果表明，在一个集群的面孔反应传感器，M170反应的强度调制的效价只有当受试者能够可靠地检测到蒙面可怕的面孔。源本地化的M170峰值使用合成孔径磁强计确定的来源，如右中枕回和左梭状回，显示这些目标的持续时间，受试者敏感的恐惧刺激的效价效应的面处理领域。能够更好地发现恐惧面孔的受试者也表现出更高的特质焦虑水平。这些结果表明，受试者之间的个体差异，如特质焦虑水平和对恐惧刺激的敏感性，可能是研究情绪处理时需要考虑的一个重要因素。
Magnetoencephalography was used to examine the effect of individual differences on the temporal dynamics of emotional face processing by grouping subjects based on their ability to detect masked valence-laden stimuli. Receiver operating characteristic curves and a nonparametric sensitivity measure were used to categorize subjects into those that could and could not reliably detect briefly presented fearful faces that were backward-masked by neutral faces. Results showed that, in a cluster of face-responsive sensors, the strength of the M170 response was modulated by valence only when subjects could reliably detect the masked fearful faces. Source localization of the M170 peak using synthetic aperture magnetometry identified sources in face processing areas such as right middle occipital gyrus and left fusiform gyrus that showed the valence effect for those target durations at which subjects were sensitive to the fearful stimulus. Subjects who were better able to detect fearful faces also showed higher trait anxiety levels. These results suggest that individual differences between subjects, such as trait anxiety levels and sensitivity to fearful stimuli, may be an important factor to consider when studying emotion processing.
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DOI：
10.3758/cabn.5.4.396
发表时间：
2005-12
期刊：
Cognitive, affective & behavioral neuroscience
影响因子：
--
作者：
Fox E;Russo R;Georgiou GA
通讯作者：
Georgiou GA
影响因子：
2.6
作者：
Fink, A
通讯作者：
Fink, A
影响因子：
4.7
作者：
Cheyne, Douglas;Bostan, Andreea C.;Pang, Elizabeth W.
通讯作者：
Pang, Elizabeth W.
影响因子：
19.7
作者：
HANLEY, JA;MCNEIL, BJ
通讯作者：
MCNEIL, BJ
影响因子：
2
作者：
BOTZEL, K;GRUSSER, OJ
通讯作者：
GRUSSER, OJ