How crowding, masking, and contour interactions are related: A developmental approach
How crowding, masking, and contour interactions are related: A developmental approach
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DOI：
10.1167/15.8.5
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发表时间：
2015-01-01
影响因子：
1.8
通讯作者：
Polat, Uri
中科院分区：
文献类型：
--
作者：
Doron, Ravid;Spierer, Abraham;Polat, Uri
幼儿的特点是视觉表现不佳。视觉拥挤、横向相互作用和轮廓检测是视觉感知、环境效应和识别的关键功能，这些功能经过多年发展直至成熟。可以观察到的功能成熟开始的年龄和功能的潜在神经基础尚不清楚。在这里，我们使用发展的方法来研究中央凹视觉功能的开始，以了解它们的神经元基础和它们之间的关系。我们测量了3-15岁参与者的横向相互作用、拥挤和轮廓整合。结果表明，非常年幼的儿童不表现出共线促进；相反，他们的视觉被压抑和高度拥挤所支配。我们的研究结果显示，视觉功能的顺序变化与便利的发展平行——即，拥挤的显著减少和轮廓检测阈值的提高。我们的数据表明，共线促进成熟的发病年龄与拥挤减少和轮廓整合改善之间的相关性具有潜在的相互神经元机制。
Young children are characterized by poor visual performances. Visual crowding, lateral interactions, and contour detection are critical functions for visual perception, context effect, and recognition that develop over the years up to maturity. The age at which the maturation's onset of the functions can be observed and the functions' underlying neural basis remain unclear. Here we used a development approach to investigate the onset of the foveal visual functions in order to learn about their neuronal basis and their relationships. We measured lateral interactions, crowding, and contour integration in participants aged 3-15 years. The results show that very young children do not exhibit collinear facilitation; rather, their vision is dominated by suppression and a high degree of crowding. Our results show sequential changes in the visual functions in parallel with the development of facilitation-that is, a significant reduction in crowding and an improved contour detection threshold. Our data suggest that the correlation between the onset age of maturation of collinear facilitation with crowding reduction and improvement of contour integration has underlying mutual neuronal mechanisms.