Dibavar Mohammad Rashbari
Islamic Azad University, Central Tehran Branch, Iran.
Infant Behav Dev. 2018 Aug;52:32-44. doi: 10.1016/j.infbeh.2018.04.006. Epub 2018 May 26.
Two-system theory as the dominant approach in the field of infant numerical representation is characterized by three features: precise representation of small sets of objects, approximate representation of large magnitudes and failure to compare small and large sets. Comparison of single- and multimodal numerical abilities suggests that infants' performance in multimodal conditions is consistent with these three features. Nevertheless, the influence of multimodal stimulation on infants' numerical representation is characterized by preventing the formation of perceptual overlaps across different sensory modalities which can lead to an understanding of numerical values of small sets and also by creating a conceptual overlap about numbers that increases infants' accuracy for discriminating quantities when numerical information is presented bimodally and synchronously. Such multisensory benefits provide numerical capabilities beyond what is depicted by the two-system view.
对少量物体的精确表征、对大数量的近似表征以及无法比较小数量和大数量集合。单模态和多模态数字能力的比较表明，婴儿在多模态条件下的表现与这三个特点一致。然而，多模态刺激对婴儿数字表征的影响表现为，防止不同感官模态之间形成感知重叠（这可能导致对少量集合数值的理解），以及在数字信息以双模态和同步方式呈现时，创建关于数字的概念重叠，从而提高婴儿区分数量的准确性。这种多感官优势提供了超出双系统观点所描述的数字能力。
