Reduced face aftereffects in autism are not due to poor attention.
Reduced face aftereffects in autism are not due to poor attention.
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DOI：
10.1371/journal.pone.0081353
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Rhodes G
中科院分区：
文献类型：
--
作者：
Ewing L;Leach K;Pellicano E;Jeffery L;Rhodes G
这项研究旨在确定为什么自闭症儿童的面孔身份后效相对于典型儿童有所减少。为了解决的可能性，减少脸的后效可能会反映减少注意适应刺激，我们调查的后果，控制注意适应面孔在一个面孔身份后效任务中的自闭症儿童和典型的儿童。我们还包括了适应和测试刺激之间的大小变化，以确定是否减少的后效反映非典型适应低或高水平的刺激属性。结果表明，当注意力被控制，并针对适应刺激，在自闭症儿童的面孔身份后效应显着减少相对于典型的儿童。这一发现挑战的概念，在适应过程中的儿童的注意力的质量和/或数量的parametricalities可能占组的差异先前观察到在这个范例。此外，尽管刺激大小改变，但面部识别后效减少的证据支持自闭症中的自适应处理重复性，其延伸超出低水平的视网膜定位编码的刺激特性。这些发现支持了这样一种观点，即自闭症中面部后效的减少反映了自适应基于规范的编码的复杂性，这也可能导致这一群体的面部处理困难。
This study aimed to determine why face identity aftereffects are diminished in children with autism, relative to typical children. To address the possibility that reduced face aftereffects might reflect reduced attention to adapting stimuli, we investigated the consequence of controlling attention to adapting faces during a face identity aftereffect task in children with autism and typical children. We also included a size-change between adaptation and test stimuli to determine whether the reduced aftereffects reflect atypical adaptation to low- or higher-level stimulus properties. Results indicated that when attention was controlled and directed towards adapting stimuli, face identity aftereffects in children with autism were significantly reduced relative to typical children. This finding challenges the notion that atypicalities in the quality and/or quantity of children’s attention during adaptation might account for group differences previously observed in this paradigm. Additionally, evidence of diminished face identity aftereffects despite a stimulus size change supports an adaptive processing atypicality in autism that extends beyond low-level, retinotopically coded stimulus properties. These findings support the notion that diminished face aftereffects in autism reflect atypicalities in adaptive norm-based coding, which could also contribute to face processing difficulties in this group.
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