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Visual and physical affective touch delivered by a rotary tactile stimulation device: A human psychophysical study
Kyung Hee Univ, South Korea.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Centrum för social och affektiv neurovetenskap. Linköpings universitet, Medicinska fakulteten. University of Gothenburg, Gothenburg, Sweden.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Centrum för social och affektiv neurovetenskap. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Sinnescentrum, Neurofysiologiska kliniken US.
Kyung Hee Univ, South Korea.
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2018 (Engelska)Ingår i: Physiology and Behavior, ISSN 0031-9384, E-ISSN 1873-507X, Vol. 185, s. 55-60Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The discovery that pleasant touch is coded by C-tactile fibers has generated considerable research interest and increased understanding of the skin as a channel for social information via cutaneous senses. However, no study has differentiated between the pleasant response to visual and tactile non-human stimulations. Our study investigated pleasant touch in which the visual and haptic touch information was obtained from an affective, but non-social experience, by a custom-built non-human device. Participants (n = 19) received soft brush strokes on their lower left arm delivered by a rotary tactile stimulator (physical session) or watched a video of an arm being stroked by a rotary tactile stimulator (visual session). The brush strokes were delivered at the same velocities (0.3, 1, 3, 10, 30 cm/s) and force (0.4 N) in both sessions. After each trial, participants rated the pleasantness of the touch. Analysis of variance was used to assess the effects of velocity and modality (visual touch vs. physical touch) on the pleasantness rating. Participants rated strokes between 1 and 10 cm/s as most pleasant under both conditions. The pleasantness rating patterns differed significantly among velocities; however, no significant differences were found between modalities. Visual and physical (without human-to-human interaction) touch elicited similar behavioral responses, including an inverted U-shaped perception of pleasantness. These findings suggest that the pleasantness of touch is influenced by the velocity of the strokes in both visual and physical touch with a non-human stimulation.

Ort, förlag, år, upplaga, sidor
PERGAMON-ELSEVIER SCIENCE LTD , 2018. Vol. 185, s. 55-60
Nyckelord [en]
C-tactile; Emotion; Pleasantness; Touch; Vision
Nationell ämneskategori
Idrottsvetenskap
Identifikatorer
URN: urn:nbn:se:liu:diva-145444DOI: 10.1016/j.physbeh.2017.12.022ISI: 000423889200007PubMedID: 29274350OAI: oai:DiVA.org:liu-145444DiVA, id: diva2:1192906
Anmärkning

Funding Agencies|National Research Foundation of Korea [2014K2A3A1000166]

Tillgänglig från: 2018-03-23 Skapad: 2018-03-23 Senast uppdaterad: 2019-05-01

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Olausson, Håkan

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Centrum för social och affektiv neurovetenskapMedicinska fakultetenNeurofysiologiska kliniken US
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