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Visual and Proprioceptive Influences on Tactile Spatial Processing in Adults with Autism Spectrum Disorders.
Autism Research ( IF 4.7 ) Pub Date : 2019-09-11 , DOI: 10.1002/aur.2202
Marlene Hense 1 , Stephanie Badde 1, 2 , Svenja Köhne 3 , Isabel Dziobek 3 , Brigitte Röder 1
Affiliation  

Children with autism spectrum disorders (ASDs) often exhibit altered representations of the external world. Consistently, when localizing touch, children with ASDs were less influenced than their peers by changes of the stimulated limb's location in external space [Wada et al., Scientific Reports 2015, 4(1), 5985]. However, given the protracted development of an external‐spatial dominance in tactile processing in typically developing children, this difference might reflect a developmental delay rather than a set suppression of external space in ASDs. Here, adults with ASDs and matched control‐participants completed (a) the tactile temporal order judgment (TOJ) task previously used to test external‐spatial representation of touch in children with ASDs and (b) a tactile‐visual cross‐modal congruency (CC) task which assesses benefits of task‐irrelevant visual stimuli on tactile localization in external space. In both experiments, participants localized tactile stimuli to the fingers of each hand, while holding their hands either crossed or uncrossed. Performance differences between hand postures reflect the influence of external‐spatial codes. In both groups, tactile TOJ‐performance markedly decreased when participants crossed their hands and CC‐effects were especially large if the visual stimulus was presented at the same side of external space as the task‐relevant touch. The absence of group differences was statistically confirmed using Bayesian statistical modeling: adults with ASDs weighted external‐spatial codes comparable to typically developed adults during tactile and visual‐tactile spatio‐temporal tasks. Thus, atypicalities in the spatial coding of touch for children with ASDs appear to reflect a developmental delay rather than a stable characteristic of ASD. Autism Res 2019, 12: 1745–1757. © 2019 International Society for Autism Research, Wiley Periodicals, Inc.

中文翻译:

视觉和本体感受对自闭症谱系障碍成年人触觉空间加工的影响。

患有自闭症谱系障碍(ASD)的儿童通常表现出对外部世界的改变。一致地,当进行局部触摸时,自闭症患儿受刺激肢体在外部空间中的位置变化的影响比同龄人少[Wada等人,《科学报告》2015,4(1),5985]。但是,鉴于典型发育中儿童在触觉加工中外部空间优势的长期发展,这种差异可能反映了发育迟缓,而不是对ASD中外部空间的固定抑制。在这里,患有自闭症的成年人和相匹配的控制参与者完成了(a)以前用于测试自闭症儿童的触摸的外部空间表示的触觉时间顺序判断(TOJ)任务,以及(b)触觉-视觉跨模态一致性( CC)任务,该任务评估与任务无关的视觉刺激对外部空间中的触觉定位的好处。在两个实验中,参与者将触觉刺激定位在每只手的手指上,而双手交叉或不交叉。手势之间的性能差异反映了外部空间代码的影响。在两组中,当参与者双手交叉时,触觉TOJ的性能均显着下降,并且如果视觉刺激与任务相关的触摸位于同一侧,则CC效应会特别大。使用贝叶斯统计模型在统计学上证实了没有群体差异:在触觉和视觉触觉时空任务中,具有ASD加权外部空间代码的成年人与通常发育的成年人相当。因此,患有ASD的儿童的触摸空间编码的非典型性似乎反映了ASD的发育延迟而不是稳定的特征。当参与者双手交叉时,触觉TOJ的性能会显着下降,如果视觉刺激与任务相关的触摸位于同一侧,则CC效果会特别大。使用贝叶斯统计模型在统计学上证实了没有群体差异:在触觉和视觉触觉时空任务中,具有ASD加权外部空间代码的成年人与通常发育的成年人相当。因此,患有ASD的儿童的触摸空间编码的非典型性似乎反映了ASD的发育延迟而不是稳定的特征。当参与者双手交叉时,触觉TOJ的性能会显着下降,如果视觉刺激与任务相关的触摸位于同一侧,则CC效果会特别大。使用贝叶斯统计模型在统计学上证实了没有群体差异:在触觉和视觉触觉时空任务中,具有ASD加权外部空间代码的成年人与通常发育的成年人相当。因此,患有ASD的儿童的触摸空间编码的非典型性似乎反映了ASD的发育延迟而不是稳定的特征。在触觉和视觉触觉的时空任务中,具有ASD的成年人的外部空间代码加权水平可与一般成年人相比。因此,患有ASD的儿童的触摸空间编码的非典型性似乎反映了ASD的发育延迟而不是稳定的特征。在触觉和视觉触觉的时空任务中,具有ASD的成年人的外部空间代码加权水平可与一般成年人相比。因此,患有ASD的儿童的触摸空间编码的非典型性似乎反映了ASD的发育延迟而不是稳定的特征。自闭症研究2019,12:1745–1757。©2019国际自闭症研究会,Wiley Periodicals,Inc.
更新日期:2019-09-11
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