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Hemispheric asymmetry in hand preference of right-handers for passive vibrotactile perception: an fNIRS study

Title
Hemispheric asymmetry in hand preference of right-handers for passive vibrotactile perception: an fNIRS study
Authors
Jin, Sang-HyeonLee, Seung HyunYang, Seung TaeAn, Jinung
DGIST Authors
Jin, Sang-Hyeon; Lee, Seung Hyun; Yang, Seung Tae; An, Jinung
Issue Date
2020-08
Citation
Scientific Reports, 10(1), 13423
Type
Article
Article Type
Article
Keywords
MOTOR CORTEX EXCITABILITYSENSORIMOTOR CORTEXFUNCTIONAL MRIHANDEDNESSRESPONSESCLASSIFICATIONACTIVATIONINDEXTOUCHTASK
ISSN
2045-2322
Abstract
Hemispheric asymmetry in hand preference for passive cutaneous perception compared to active haptic perception is not well known. A functional near-infrared spectroscopy was used to evaluate the laterality of cortical facilitation when 31 normal right-handed participants were involved in 205 Hz passive vibrotactile cutaneous stimuli on their index fingers of preferred and less-preferred hand. Passive cutaneous perception resulted that preferred (right) hand stimulation was strongly leftward lateralized, whereas less-preferred (left) hand stimulation was less lateralized. This confirms that other manual haptic exploration studies described a higher hemispheric asymmetry in right-handers. Stronger cortical facilitation was found in the right primary somatosensory cortex (S1) and right somatosensory association area (SA) during left-hand stimulation but not right-hand stimulation. This finding suggests that the asymmetric activation in the S1 and SA for less-preferred (left) hand stimulation might contribute to considerably reinforce sensorimotor network just with passive vibrotactile cutaneous stimulation. © 2020, The Author(s).
URI
http://hdl.handle.net/20.500.11750/12597
DOI
10.1038/s41598-020-70496-y
Publisher
Nature Publishing Group
Related Researcher
  • Author An, Jinung Brain Robot Augmented InteractioN(BRAIN) Laboratory
  • Research Interests
Files:
Collection:
ETC1. Journal Articles
Division of Intelligent RoboticsBrain Robot Augmented InteractioN(BRAIN) Laboratory1. Journal Articles


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