Nitta Hiroshi, Uto Yusuke, Chaya Kengo, Hashiya Kazuhide
Faculty of Early Childhood Care and Education, Seika Women's Junior College, Fukuoka, Japan; Graduate School of Human-Environment Studies, Kyushu University, Fukuoka, Japan.
Graduate School of Human-Environment Studies, Kyushu University, Fukuoka, Japan.
Conscious Cogn. 2025 Jan;127:103803. doi: 10.1016/j.concog.2024.103803. Epub 2024 Dec 28.
The aim of the current study was to investigate visual scan patterns for the self-face in infants with the ability to recognize themselves with a photograph. 24-month-old infants (N = 32) were presented with faces including the self-face in the upright or inverted orientation. We also measured infants' ability to recognize oneself in a mirror and with a photograph. Results showed that only in trials with the self-face was pupil dilation greater in the upright orientation than in the inverted orientation, and that eye movements and pupil dilation were not associated with PSR tasks. Our findings suggest that the processing of the self-face was processed in a manner similar to that of others, with longer and more fixations on eyes and nose, but infants allocated more attentional resources to processing upright self-face. Self-face processing in infancy may be independent of the understanding of the self beyond the here and now.
本研究的目的是调查能够通过照片识别自己的婴儿对自己面部的视觉扫描模式。向32名24个月大的婴儿展示包括正立或倒立的自己面部在内的面孔。我们还测量了婴儿在镜子中和通过照片识别自己的能力。结果表明，只有在呈现自己面部的试验中，正立方向的瞳孔扩张比倒立方向更大，并且眼球运动和瞳孔扩张与自我识别任务无关。我们的研究结果表明，对自己面部的处理方式与对他人面部的处理方式相似，对眼睛和鼻子的注视时间更长、次数更多，但婴儿会分配更多的注意力资源来处理正立的自己面部。婴儿期对自己面部的处理可能独立于对此时此地之外的自我的理解。
