Abstract

Objective

Perception of touch is expected at the location where it is applied. However, there are indications that being touched may be perceived on the contralateral side when seen as a reflection in a mirror at midline. Such inter-lateral referral of sensation (RS) lacks evidence, as mirror therapy research usually focusses on movement-based techniques. This study aimed to map out existing research across disciplines regarding the effect of RS in health and disease, and to understand whether there is rehabilitation potential in RS.

Method

A scoping review was conducted to map out concepts and keywords across disciplines interested in this topic, using keywords in several languages, and a wide range of databases and additional sources.

Results

The review revealed mostly cross-sectional experiments and included over 486 participants: healthy, or with stroke, complex regional pain syndrome, amputation, nerve graft surgery or radial fracture. Procedures varied regarding stimulation tool, time and location, with two stimulating replacements, one the face and one a variety of areas. Response rates ranged from 0 to 100%.In general, RS was regarded as a phenomenon or even as a predictor of maladaptive neuroplasticity. There was little research into using RS stimulation as a modulatory tool to improve sensory perception.

Conclusions

RS challenges the understanding of touch perception and elicits a range of questions regarding neuro-processing. A modulatory approach using RS has not been described, requires investigation and, if promising, development as an intervention.

中文翻译：

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使用镜像错觉对健康和疾病中的感觉进行横向转诊——范围审查

摘要

客观的

预期在应用触摸的位置感知触摸。然而，有迹象表明，当被视为中线镜子中的反射时，可能会在对侧感知被触摸。这种感觉（RS）的横向转诊缺乏证据，因为镜像疗法研究通常集中在基于运动的技术上。本研究旨在绘制有关 RS 对健康和疾病影响的跨学科现有研究，并了解 RS 是否具有康复潜力。

方法

进行了范围审查，以绘制出对该主题感兴趣的跨学科的概念和关键字，使用多种语言的关键字，以及广泛的数据库和其他来源。

结果

该审查主要揭示了横断面实验，包括超过 486 名参与者：健康或患有中风、复杂区域疼痛综合征、截肢、神经移植手术或桡骨骨折。程序因刺激工具、时间和位置而异，有两种刺激替代物，一种是面部，一种是多种区域。反应率从0%到100%不等。一般来说，RS被认为是一种现象，甚至可以作为适应不良的神经可塑性的预测因子。关于使用 RS 刺激作为调节工具来改善感官知觉的研究很少。

结论

RS 挑战了对触觉感知的理解，并引发了一系列有关神经处理的问题。尚未描述使用 RS 的调节方法，需要进行调查，如果有希望，作为干预措施进行开发。