Infant research is providing accumulating evidence that number-space mappings appear early in development. Here, a Posner cueing paradigm was used to investigate the neural mechanisms underpinning the attentional bias induced by nonsymbolic numerical cues in 9-month-old infants (N = 32). Event-related potentials and saccadic reaction time were measured to the onset of a peripheral target flashing right after the offset of a centered small or large numerical cue, with the location of the target being either congruent or incongruent with the number’s relative position on a left-to-right oriented representational continuum. Results indicated that the cueing effect induced by numbers on infants’ orienting of eye gaze brings about sensory facilitation in processing visual information at the cued location.

中文翻译：

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9 个月大婴儿空间数关联的电生理证据

婴儿研究正在提供越来越多的证据，表明数字空间映射出现在开发早期。在这里，波斯纳线索范式用于研究支持 9 个月大婴儿（N  = 32）非符号数字线索引起的注意偏差的神经机制。事件相关电位和扫视反应时间是在中心的小数字提示或大数字提示偏移后立即开始闪烁的外围目标开始测量的，目标的位置与左侧数字的相对位置一致或不一致面向右的表征连续体。结果表明，数字对婴儿眼睛注视方向的暗示作用导致在被暗示位置处理视觉信息的感觉促进作用。