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首页> 美国卫生研究院文献>other >Self-Reported Pleasantness Ratings and Examiner-Coded Defensiveness in Response to Touch in Children with ASD: Effects of Stimulus Material and Bodily Location
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Self-Reported Pleasantness Ratings and Examiner-Coded Defensiveness in Response to Touch in Children with ASD: Effects of Stimulus Material and Bodily Location

机译：自闭症儿童对触觉的自我报告的愉悦度评分和考官编码的防御力：刺激物质和身体位置的影响

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摘要

Tactile defensiveness, characterized by behavioral hyperresponsiveness and negative emotional responses to touch, is a common manifestation of aberrant sensory processing in autism spectrum disorders (ASD) and other developmental disabilities (DD). Variations in tactile defensiveness with the properties of the stimulus and the bodily site of stimulation have been addressed in adults with self-report of perceived tactile pleasantness, but not in children. We presented three materials (pleasant, unpleasant, social) at three bodily sites and measured both examiner-coded defensiveness and self-reported pleasantness from a group of children with ASD and two comparison groups (one with DD, one with typical development (TD)). The main findings were: 1) children with ASD and DD showed significantly more defensiveness reactions and lower pleasantness ratings than the TD group, with higher variability, 2) there was a double dissociation for the effects of material and bodily site of stimulation: while bodily site predicted behavioral defensiveness, material predicted pleasantness rating. Additionally, it was noted that 3) the most pleasant material and the social touch conditions best distinguished ASD and DD from TD on defensiveness, and 4) within the ASD group, social impairment and defensiveness in bodily sites associated with social touch were positively correlated, suggesting a clinically relevant distinction between social and discriminative touch in ASD.
机译：以行为高反应性和对触摸的负面情绪反应为特征的触觉防御能力是自闭症谱系障碍（ASD）和其他发育障碍（DD）中异常感觉处理的常见表现。成年人在自我感觉触觉愉悦的自我报告中已解决了触觉防御力随刺激物和刺激身体部位的变化，但未针对儿童。我们在三个身体部位展示了三种材料（令人愉悦，不愉快，社交），并测量了一组ASD儿童和两个对照组（一组DD，一个具有典型发育（TD））的考官编码的防御性和自我报告的愉悦感）。主要发现是：1）与TD组相比，ASD和DD儿童表现出明显更高的防御反应和较低的愉悦感等级，且变异性更高； 2）刺激的物质和身体部位的影响呈双重解离：现场预测的行为防御能力，物质预测的愉悦等级。此外，应注意的是，3）最令人愉悦的物质和社交触觉条件最能使ASD和DD与TD在防御能力上区分开，并且4）在ASD组内，与社交触觉相关的身体部位的社交障碍和防御能力呈正相关，提示在ASD中社交和区分性接触之间存在临床上的区别。

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