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Defining pleasant touch stimuli: a systematic review and meta-analysis
Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark. (Scandinavian Centre for Orofacial Neurosciences (SCON))ORCID iD: 0000-0002-6392-0723
Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden.
Department of Dental Medicine, Karolinska Institute, Solna, Sweden. (Scandinavian Centre for Orofacial Neurosciences (SCON))
Malmö University, Faculty of Odontology (OD). Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark. (Scandinavian Centre for Orofacial Neurosciences (SCON))ORCID iD: 0000-0001-5809-8037
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2021 (English)In: Psychological Research, ISSN 0340-0727, E-ISSN 1430-2772, Vol. 85, p. 20-35Article in journal (Refereed) Published
Abstract [en]

Pleasantness is generally overlooked when investigating tactile functions. Addition of a pleasant stimulus could allow for a more complete characterisation of somatosensory function. The aims of this review were to systematically assess the methodologies used to elicit a pleasant sensation, measured via psychophysical techniques, and to perform a meta-analysis to measure the effect of brush stroking velocity on touch pleasantness. Eighteen studies were included in the systematic review, with five studies included in the meta-analysis. The review found that factors such as texture, velocity, force, and the duration of continuous stroking influence tactile evoked pleasantness. Specifically, using a soft material and stroking at a velocity of 3 cm/s with light force is generally considered as particularly pleasant. The meta-analysis showed that a brush stroking velocity of 30 cm/s was rated as less pleasant than 3 cm/s, on the forearm. The present study collates the factors that are most likely to provide a stimulus to elicit a pleasant sensation. The results should be important for studies requiring a well-defined pleasant stimulus including neurosensory assessment protocols, allowing for a more complete multimodality assessment of somatosensory function.

Place, publisher, year, edition, pages
Springer, 2021. Vol. 85, p. 20-35
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Applied Psychology
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URN: urn:nbn:se:mau:diva-39173DOI: 10.1007/s00426-019-01253-8ISI: 000491527600001PubMedID: 31630220Scopus ID: 2-s2.0-85074763592OAI: oai:DiVA.org:mau-39173DiVA, id: diva2:1518106
Available from: 2021-01-15 Created: 2021-01-15 Last updated: 2023-10-17Bibliographically approved

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Svensson, Peter

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