周边视野的偏心率对正性和负性面部效价感知的调节作用不同:KDEF 对 NimStim 的复制。
Positive and negative facial valence perception are modulated differently by eccentricity in the parafovea: Replication from KDEF to NimStim.
机构信息
School of Optometry and Vision Science, Faculty of Life Science, Bar Ilan University, 5290002, Ramat Gan, Israel.
The Gonda Multidisciplinary Brain Research Center, Bar Ilan University, Ramat Gan, Israel.
出版信息
Sci Rep. 2024 Jun 14;14(1):13757. doi: 10.1038/s41598-024-63724-2.
While perceiving the emotional state of others may be crucial for our behavior even when this information is present outside of central vision, emotion perception studies typically focus on central visual field. We have recently investigated emotional valence (pleasantness) perception across the parafovea (≤ 4°) and found that for briefly presented (200 ms) emotional face images (from the established KDEF image-set), positive (happy) valence was the least affected by eccentricity (distance from the central visual field) and negative (fearful) valence the most. Furthermore, we found that performance at 2° predicted performance at 4°. Here we tested (n = 37) whether these effects replicate with face stimuli of different identities from a different well-established image-set (NimStim). All our prior findings replicated and eccentricity-based modulation magnitude was smaller with NimStim (~ 16.6% accuracy reduction at 4°) than with KDEF stimuli (~ 27.3% reduction). Our current investigations support our earlier findings that for briefly presented parafoveal stimuli, positive and negative valence perception are differently affected by eccentricity and may be dissociated. Furthermore, our results highlight the importance of investigating emotions beyond central vision and demonstrate commonalities and differences across different image sets in the parafovea, emphasizing the contribution of replication studies to substantiate our knowledge about perceptual mechanisms.
虽然感知他人的情绪状态对于我们的行为可能至关重要,即使这些信息存在于中央视野之外,但情绪感知研究通常集中在中央视野。我们最近研究了周边视野(≤4°)的情绪效价(愉悦度)感知,发现对于短暂呈现(200 毫秒)的情绪面部图像(来自既定的 KDEF 图像集),正性(快乐)效价受离中央视野的距离(离焦)影响最小,而负性(恐惧)效价受离焦影响最大。此外,我们发现 2°处的表现可以预测 4°处的表现。在这里,我们用来自不同知名图像集(NimStim)的不同身份的面部刺激物(n=37)测试了这些效应是否可以重现。我们所有的先前发现都得到了重现,并且与 KDEF 刺激物(4°时准确率降低约 27.3%)相比,NimStim 刺激物的离焦调制幅度更小(4°时准确率降低约 16.6%)。我们目前的研究结果支持我们之前的发现,即对于短暂呈现的周边视野刺激,正性和负性效价感知受离焦的影响不同,并且可能存在分离。此外,我们的结果强调了在中央视野之外研究情绪的重要性,并展示了不同图像集在周边视野中的共性和差异,突出了复制研究对证实我们对感知机制的认识的贡献。