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Difficulty of crossmodal processing in individuals with autism spectrum disorders: An audio-visual gap/overlap paradigm study

机译:自闭症谱系障碍患者交叉模式处理的困难:视听间隙/重叠范例研究

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Evidence suggests that individuals with autism spectrum disorders (ASD) exhibit difficulty in integrating crossmodal information. However, few previous studies have investigated crossmodal attention switching in individuals with ASD. The present study investigates whether children with ASD have difficulty in crossmodal processing across auditory and visual modalities. For this study, we observed 10 children with ASD and 11 IQ-, age-, and gender-matched, healthy, control children. We used a modified gap/overlap task that required the simultaneous allocation of attention to auditory and visual stimuli (audio-visual gap/overlap task). In addition, the visual-only gap/overlap task used a classical gap/overlap procedure. In the visual-only gap/overlap task, children with ASD exhibited the same performance as control children. In contrast, in the audio-visual condition, children with ASD were significantly slower to respond than control children in both the gap and overlap tasks. In addition, the gap effects between the ASD and control groups were observed in each condition, but no significant group differences were observed. These results suggest that children with ASD exhibit difficulty in simultaneously allocating attentional resources to auditory and visual modalities although children with ASD are intact in disengagement of attention. These findings provide important insights regarding crossmodal processing in ASD.
机译:有证据表明,患有自闭症谱系障碍(ASD)的人在整合交叉模式信息方面表现出困难。但是,很少有先前的研究调查过ASD患者的跨模式注意力转移。本研究调查了患有自闭症的儿童是否在跨听觉和视觉方式的交叉方式处理方面存在困难。在这项研究中,我们观察了10名ASD儿童和11名智商,年龄,性别匹配的健康对照儿童。我们使用了经过修改的间隙/重叠任务,该任务需要同时分配对听觉和视觉刺激的注意力(视听间隙/重叠任务)。此外,仅可视间隙/重叠任务使用经典间隙/重叠过程。在仅视觉间隙/重叠任务中,患有ASD的儿童表现出与对照儿童相同的表现。相反,在视听条件下,在间隙和重叠任务中,ASD儿童的反应明显慢于对照儿童。另外,在每种情况下均观察到ASD与对照组之间的间隙效应,但未观察到显着的组间差异。这些结果表明,尽管患有自闭症的儿童在脱离注意力方面是完好无损的,但他们难以同时将注意力资源分配到听觉和视觉方式。这些发现提供了有关ASD中交叉模式处理的重要见解。

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