Neurodynamic Studies on Emotional and Inverted Faces in an Oddball Paradigm
Neurodynamic Studies on Emotional and Inverted Faces in an Oddball Paradigm
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DOI：
10.1023/b:brat.0000032863.39907.cb
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发表时间：
2003-01
期刊：
影响因子：
2.7
通讯作者：
A. Sušac;R. Ilmoniemi;E. Pihko;S. Supek
中科院分区：
文献类型：
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作者：
A. Sušac;R. Ilmoniemi;E. Pihko;S. Supek
在一个古怪的范例中研究了检测的变化，在一个脸刺激。在4种不同的条件下记录面孔刺激的事件相关电位（ERP）和脑磁图（MEG）反应：1）快乐标准，中性偏态; 2）中性标准，中性偏态; 3）反向快乐标准，反向中性偏态; 4）反向中性标准，反向中性偏态。在所有情况下，目标都是一张戴眼镜的脸。中性偏差引起ERP和MEG反应的负偏转（最大值约280 ms），类似于听觉失配负性的效果。脸反转减少偏差相关的负面影响，这意味着在所观察到的效果的重要作用的面孔识别。与条件2和条件4相比，条件1和条件3中的刺激之间的情感内容和较大的身体差异对中性偏差相关的消极性没有统计学显著影响。
The detection of a change in a face stimulus was studied in an oddball paradigm. Event-related potentials (ERPs) and MEG responses to face stimuli were recorded in four conditions: 1) happy standard, neutral deviant; 2) neutral standard, neutral deviant; 3) inverted happy standard, inverted neutral deviant; 4) inverted neutral standard, inverted neutral deviant. In all conditions, the target was a face with glasses. Neutral deviants elicited a negative deflection (with a maximum around 280 ms) in ERP and MEG responses, an effect similar to auditory mismatch negativity. Face inversion diminished deviance-related negativity, implying an important role of face recognition in the observed effect. Emotional content and larger physical differences between stimuli in conditions 1 and 3 compared to conditions 2 and 4 did not show statistically significant effect on the neutral-deviant-related negativity.