PDF(Pubmed)
Abstract：
Adults and infants form abstract categories of visual objects, but little is known about the development of global categorization. This study aims to characterize the development of very fast global categorization (living and non-living objects) and to determine whether and how low-level stimulus characteristics contribute to this response. Frequency tagging was used to characterize the development of global-level categorization in N = 69 infants (4, 7, 11 months), N = 22 children (5-6 years old), and N = 20 young adults. Images were presented in an oddball paradigm, with a category change at every fifth position (AAAABAAAABA…). Strong and significant high-level categorization was observed in all age groups, with reduced responses for phase-scrambled control sequences (R2 = 0.34-0.73). No differences between the categorization of living and non-living targets were observed. These data demonstrate high-level visual categorization as living and non-living from four months to adulthood, providing converging evidence that humans are highly sensitive to broad categorical information from infancy onward.
摘要：
成人和婴儿形成视觉对象的抽象类别，但是对全球分类的发展知之甚少。这项研究旨在描述非常快速的全球分类（生物和非生物）的发展，并确定低水平刺激特征是否以及如何对这种反应做出贡献。频率标记用于表征N=69婴儿（4，7，11个月）的全球水平分类的发展，N=22名儿童（5-6岁），N=20名年轻人。图像以奇怪的范式呈现，类别变化在每第五个位置（AAAABAAABA...）。在所有年龄组都观察到强烈和显著的高层次分类，对相位加扰控制序列的响应减少(R2=0.34-0.73)。未观察到有生命目标和无生命目标的分类之间的差异。这些数据显示了从四个月到成年的生活和非生活的高级视觉分类，提供融合的证据表明，人类对从婴儿期开始的广泛分类信息高度敏感。
