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Neural sensitivity to natural image statistics changes during middle childhood
Developmental Psychobiology ( IF 1.8 ) Pub Date : 2020-11-24 , DOI: 10.1002/dev.22062
Benjamin Balas 1 , Alyson Saville 1
Affiliation  

Natural images have properties that adults’ behavioral and neural responses are sensitive to, but the development of this sensitivity is not clear. Behaviorally, children acquire adult-like sensitivity to natural image statistics during middle childhood (Ellemberg et al., 2012), but infants exhibit sensitivity to deviations of natural image structure (Balas & Woods, 2014). We used event-related potentials (ERPs) to examine sensitivity to natural image statistics during childhood at distinct processing stages (the P1 and N1 components). We presented children (5–10 years old) and adults with natural images varying in positive/negative contrast, and natural/synthetic texture appearance to compare electrophysiological responses to images that did or did not violate natural statistics. We hypothesized that children would acquire sensitivity to these deviations late in middle childhood. Instead, we observed significant responses to unnatural contrast and texture statistics at the N1 in all age groups. At the P1, however, only young children exhibited sensitivity to contrast polarity. The latter effect suggests greater sensitivity earlier in development to some violations of natural image statistics. We discuss these results in terms of changing patterns of invariant texture processing during middle childhood and ongoing refinement of the representations supporting natural image perception.

中文翻译:

儿童中期对自然图像统计变化的神经敏感性

自然图像具有成年人的行为和神经反应敏感的特性,但这种敏感性的发展尚不清楚。在行为上,儿童在童年中期对自然图像统计数据具有成人般的敏感性(Ellemberg 等人,2012 年),但婴儿对自然图像结构的偏差表现出敏感性(Balas & Woods,2014 年)。我们使用事件相关电位 (ERP) 来检查儿童时期在不同处理阶段(P1 和 N1 组件)对自然图像统计数据的敏感性。我们向儿童(5-10 岁)和成人展示了具有不同正/负对比度的自然图像,以及自然/合成纹理外观,以比较是否违反自然统计数据的图像的电生理反应。我们假设儿童在童年中期后期会对这些偏差产生敏感性。相反,我们观察到所有年龄段的 N1 对不自然的对比度和纹理统计数据的显着反应。然而,在 P1 时,只有幼儿表现出对对比极性的敏感性。后一种效应表明在开发过程中对某些违反自然图像统计的行为具有更大的早期敏感性。我们根据童年中期不变纹理处理的变化模式和支持自然图像感知的表示的持续改进来讨论这些结果。后一种效应表明在开发过程中对某些违反自然图像统计的行为具有更大的早期敏感性。我们根据童年中期不变纹理处理的变化模式和支持自然图像感知的表示的持续改进来讨论这些结果。后一种效应表明在开发过程中对某些违反自然图像统计的行为具有更大的早期敏感性。我们根据童年中期不变纹理处理的变化模式和支持自然图像感知的表示的持续改进来讨论这些结果。
更新日期:2020-11-24
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