Affective touch awareness in mental health and disease relates to autistic traits - An explorative neurophysiological investigation
Affective touch awareness in mental health and disease relates to autistic traits - An explorative neurophysiological investigation
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DOI：
10.1016/j.psychres.2016.09.011
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发表时间：
2016-11-30
影响因子：
11.3
通讯作者：
Olausson, Hakan
中科院分区：
文献类型：
--
作者：
Croy, Ilona;Geide, Helen;Olausson, Hakan
情感触摸对于家庭和群体中的社会互动非常重要，有证据表明无髓鞘C触觉纤维参与了这一过程。患有自闭症谱系障碍的个体在感知和处理情感触摸方面表现出改变。因此，我们假设，基于C触觉纤维激活的情感触摸意识在具有高水平自闭症特征的个体中受损。在一项探索性研究中，在70名从门诊心理治疗诊所招募的患者和69名健康对照受试者中测试了最佳和次佳C触觉刺激的愉悦感。所有参与者都完成了关于自闭症特征、抑郁症、童年虐待和每日触摸量的问卷。相对于对照组，患者报告在日常生活中接触的频率较低，并且认为接触不那么令人愉快。降低触摸的效价等级被解释为童年虐待，但不是由任何特定的障碍或抑郁症的严重程度。在所有的测试变量中，情感触摸意识与自闭症特征仅相关-在患者以及在比较对象。总的来说，有心理健康问题的人表达和接受情感触摸的基线较低。自闭症特质和童年虐待调节情感触摸的经验。(C)2016爱思唯尔爱尔兰有限公司版权所有。
Affective touch is important for social interaction within families and groups and there is evidence that unmyelinated C tactile fibers are involved in this process. Individuals with autism spectrum disorders show alterations in the perception and processing of affective touch. sThus, we hypothesized that affective touch awareness based on C tactile fiber activation is impaired in individuals with high levels of autistic trait. The pleasantness perception of optimal and suboptimal C tactile stimuli was tested in an explorative study in 70 patients recruited from an outpatient psychotherapy clinic and 69 healthy comparison subjects. All participants completed questionnaires about autistic traits, depressive symptomatology, childhood maltreatment, and about the daily amount of touch. Relative to comparison subjects, patients reported engaging in touch less frequently in daily life and rated touch less pleasant. Reduced valence ratings of touch were explained by childhood maltreatment but not by any particular disorder or depression severity. Among all tested variables, the affective touch awareness correlated with autistic traits only - in patients as well as in comparison subjects. Taken together, individuals with mental health issues have a lower baseline of expression and reception of affective touch. Autistic traits and childhood maltreatment modulate the experience of affective touch. (C) 2016 Elsevier Ireland Ltd. All rights reserved.