Pleasant Deep Pressure: Expanding the Social Touch Hypothesis.

Pleasant Deep Pressure: Expanding the Social Touch Hypothesis.
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令人愉快的深层压力:扩展社会接触假说。

DOI:
10.1016/j.neuroscience.2020.07.050
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发表时间:
2021-06-01
期刊:
影响因子:
3.3
通讯作者:
Bushnell MC
Bushnell MC
中科院分区:
医学3区
文献类型:
--
作者:
Case LK;Liljencrantz J;McCall MV;Bradson M;Necaise A;Tubbs J;Olausson H;Wang B;Bushnell MC

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关于愉悦触觉的神经科学研究主要集中在轻柔抚摸的C触觉通路上,并成功地解释了这些感觉纤维如何将情感性社交触觉的信息传递给大脑,并诱导愉悦的感觉。C-tactile社会/情感触摸假说甚至提出,C-tactile纤维形成了社会触摸的特权通路。然而,深压是一种通常被认为是愉快和平静的触摸类型,发生在拥抱,拥抱和按摩中。在本文中,我们介绍了一种研究愉快的深层压力的范式,并提出它构成了另一种重要的社会接触形式。我们描述了振荡压缩套筒(OCS)的发展作为一种方法来管理深压力,并证明这种触摸被认为是愉快和平静。此外,我们表明,深压可以成像功能磁共振成像(MRI)使用气压驱动的OCS和深压激活大脑区域高度相似的那些响应C-触觉抚摸,以及区域不激活抚摸。我们认为,深层压力构成了另一种具有进化重要性的社会接触途径,标志着同种动物的接近。
Neuroscientific research on pleasant touch has focused on the C-tactile pathway for gentle stroking and has successfully explained how these sensory fibers transmit information about affective social touch to the brain and induce sensations of pleasantness. The C-tactile social/affective touch hypothesis even proposes that C-tactile fibers form a privileged pathway underlying social touch. However, deep pressure is a type of touch commonly considered pleasant and calming, occurring in hugs, cuddling, and massage. In this paper we introduce a paradigm for studying pleasant deep pressure and propose that it constitutes another important form of social touch. We describe development of the oscillating compression sleeve (OCS) as one approach to administering deep pressure and demonstrate that this touch is perceived as pleasant and calming. Further, we show that deep pressure can be imaged with functional magnetic resonance imaging (MRI) using the air-pressure-driven OCS and that deep pressure activates brain regions highly similar to those that respond to C-tactile stroking, as well as regions not activated by stroking. We propose that deep pressure constitutes another social touch pathway of evolutionary importance signaling the close proximity of conspecifics.
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