Change search
ReferencesLink to record
Permanent link

Direct link
Unmyelinated Tactile Cutaneous Nerves Signal Erotic Sensations
University of Gothenburg, Sweden.
University of Gothenburg, Sweden.
University of Gothenburg, Sweden.
University of Medical Centre Groningen, Netherlands.
Show others and affiliations
2015 (English)In: Journal of Sexual Medicine, ISSN 1743-6095, E-ISSN 1743-6109, Vol. 12, no 6, 1338-1345 p.Article in journal (Refereed) Published
Abstract [en]

Introduction. Intrapersonal touch is a powerful tool for communicating emotions and can among many things evoke feelings of eroticism and sexual arousal. The peripheral neural mechanisms of erotic touch signaling have been less studied. C tactile afferents (unmyelinated low-threshold mechanoreceptors), known to underpin pleasant aspects of touch processing, have been posited to play an important role. MethodIn two studies, we investigated the relationship between C tactile activation and the perception of erotic and pleasant touch, using tactile brushing stimulation. In total, 66 healthy subjects (37 women, age range 19-51 years) were examined. In study 1 (n=20), five different stroking velocities were applied to the forearm and the inner thigh. The participants answered questions about partnership, mood, and touch. In study 2 (n=46), the same five stroking velocities were applied to the forearm. The participants answered questions about partnership, touch, and sexuality. ResultsBoth touch eroticism and pleasantness were rated significantly higher for C tactile optimal velocities compared with suboptimal velocities. No difference was found between the ratings of the thigh and the forearm. The velocity-dependent rating curves of pleasantness, intensity, and eroticism differed from each other. Pleasantness was best explained by a quadratic fit, intensity by a linear fit, and eroticism by both. A linear transformation of pleasantness and intensity predicted the observed eroticism ratings reliably. Eroticism ratings were negatively correlated with length of relationship. ConclusionTouch was rated most erotic when perceived as pleasant and weak. In human hairy skin, perception of pleasantness is correlated with the firing rate of C tactile afferents, and perception of intensity is correlated with the firing rate of A afferents. Accordingly, eroticism may be perceived most readily for touch stimuli that induce high activity in C tactile fibers and low activity in A fibers. Jonsson EH, Backlund Wasling H, Wagnbeck V, Dimitriadis M, Georgiadis JR, Olausson H, and Croy I. Unmyelinated tactile cutaneous nerves signal erotic sensations. J Sex Med 2015;12:1338-1345.

Place, publisher, year, edition, pages
Wiley: 12 months , 2015. Vol. 12, no 6, 1338-1345 p.
Keyword [en]
C Tactile; Touch; Erotic; Somatosensory; Pleasantness; Periphery
National Category
Basic Medicine
URN: urn:nbn:se:liu:diva-120062DOI: 10.1111/jsm.12905ISI: 000355843600005PubMedID: 25970018OAI: diva2:839958

Funding Agencies|German Research Foundation (DFG) [CR 479/1-1]; Swedish Research Council

Available from: 2015-07-06 Created: 2015-07-06 Last updated: 2016-01-21

Open Access in DiVA

fulltext(395 kB)10 downloads
File information
File name FULLTEXT01.pdfFile size 395 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Olausson, HåkanCroy, Ilona
By organisation
Division of Neuro and Inflammation ScienceFaculty of Medicine and Health SciencesDepartment of Clinical Neurophysiology
In the same journal
Journal of Sexual Medicine
Basic Medicine

Search outside of DiVA

GoogleGoogle Scholar
Total: 10 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 100 hits
ReferencesLink to record
Permanent link

Direct link