Kato Ryousuke, Takeda Yuji
University of Tsukuba, Tsukuba, Japan; National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan.
University of Tsukuba, Tsukuba, Japan; National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan.
Neurosci Lett. 2017 Jun 9;651:177-181. doi: 10.1016/j.neulet.2017.05.013. Epub 2017 May 8.
Previous studies have demonstrated that females exhibit higher sensitivity than males to the emotional state of a person in a photograph. The present study examined whether such females' sensitivity to human emotions could be observed even when the background emotional contexts were incongruent with facial expressions. The late positive potential (LPP) was measured while 19-female and 15-male participants viewed a photograph of a face with varied emotional expressions (pleasant, neutral, or unpleasant) superimposed on a background photograph with varied valences (pleasant, neutral, or unpleasant). The results showed that unpleasant background photographs elicited a larger LPP compared to pleasant and neutral background photographs in both female and male participants. In contrast, a larger LPP for the unpleasant face photographs was observed only in female participants. Furthermore, the effect of face photographs did not interact with the effect of background photographs. These results suggest that females are sensitive to human emotions regardless of the emotional context.
以往的研究表明，女性比男性对照片中人物的情绪状态表现出更高的敏感度。本研究考察了即使背景情绪情境与面部表情不一致时，是否仍能观察到女性对人类情绪的这种敏感度。在19名女性和15名男性参与者观看一张面部照片时，测量了晚期正电位（LPP），该面部照片带有不同的情绪表情（愉悦、中性或不悦），叠加在具有不同效价（愉悦、中性或不悦）的背景照片上。结果显示，与愉悦和中性背景照片相比，不悦的背景照片在女性和男性参与者中均引发了更大的晚期正电位。相比之下，仅在女性参与者中观察到不悦面部照片引发了更大的晚期正电位。此外，面部照片的效应与背景照片的效应没有相互作用。这些结果表明，无论情绪情境如何，女性对人类情绪都很敏感。
