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Interpersonal stroking touch is targeted to C tactile afferent activation
Linköping University, Department of Clinical and Experimental Medicine, Division of Neuro and Inflammation Science. Linköping University, Faculty of Medicine and Health Sciences. Technical University of Dresden, Germany.
Sahlgrens University Hospital, Sweden.
Linköping University, Department of Clinical and Experimental Medicine. Linköping University, Faculty of Medicine and Health Sciences. Sahlgrens University Hospital, Sweden.
Technical University of Dresden, Germany.
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2016 (English)In: Behavioural Brain Research, ISSN 0166-4328, E-ISSN 1872-7549, Vol. 297, 37-40 p.Article in journal (Refereed) PublishedText
Abstract [en]

C tactile fibers are a specialized group of fibers innervating the non-glabrous skin that are tuned to light gentle stroking applied with velocities between 1 and 10 cm/s. Those fibers add to the sensation of interpersonal caressing and pleasant touch. It is unclear whether people spontaneously apply touch that is tuned to optimally activate those fibers. This was investigated in three studies. In study one, 45 participants (21.8 +/- 2.3 years, 24 women) were asked to stroke an artificial arm. In study two, 32 participants (28.3 +/- 8.7years, 16 women) were asked to stroke their partner. In study three, 11 parents (29.4 +/- 5.7years, 6 women) were asked to stroke their babies. Stroking velocity was tracked in all conditions. Stroking velocities were significantly slower in the partner touch and baby touch condition than in the artificial arm condition and all of the participants stroking their partner or baby used velocities that can activate C tactile fibers. We conclude that human social stroking is optimized for C tactile stimulation. (C) 2015 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2016. Vol. 297, 37-40 p.
Keyword [en]
Unmyelinated; Affective; C-tactile; Relationship; Social
National Category
Clinical Medicine
Identifiers
URN: urn:nbn:se:liu:diva-124086DOI: 10.1016/j.bbr.2015.09.038ISI: 000367107900006PubMedID: 26433145OAI: oai:DiVA.org:liu-124086DiVA: diva2:897228
Note

Funding Agencies|Marcus och Amalia Wallenberg Foundation [MAW2015-009]; Swedish Research Council [2011-1529]

Available from: 2016-01-25 Created: 2016-01-19 Last updated: 2016-01-25

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Croy, IlonaOlausson, Håkan
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Division of Neuro and Inflammation ScienceFaculty of Medicine and Health SciencesDepartment of Clinical and Experimental Medicine
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