Modulation of Corticospinal Excitability Depends on the Pattern of Mechanical Tactile Stimulation

We investigated the effects of different patterns of mechanical tactile stimulation (MS) on corticospinal excitability by measuring the motor-evoked potential (MEP). This was a single-blind study that included nineteen healthy subjects. MS was applied for 20 min to the right index finger. MS interve...

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Main Authors: Sho Kojima, Hideaki Onishi, Shota Miyaguchi, Shinichi Kotan, Ryoki Sasaki, Masaki Nakagawa, Hikari Kirimoto, Hiroyuki Tamaki
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Neural Plasticity
Online Access:http://dx.doi.org/10.1155/2018/5383514
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author Sho Kojima
Hideaki Onishi
Shota Miyaguchi
Shinichi Kotan
Ryoki Sasaki
Masaki Nakagawa
Hikari Kirimoto
Hiroyuki Tamaki
author_facet Sho Kojima
Hideaki Onishi
Shota Miyaguchi
Shinichi Kotan
Ryoki Sasaki
Masaki Nakagawa
Hikari Kirimoto
Hiroyuki Tamaki
author_sort Sho Kojima
collection DOAJ
description We investigated the effects of different patterns of mechanical tactile stimulation (MS) on corticospinal excitability by measuring the motor-evoked potential (MEP). This was a single-blind study that included nineteen healthy subjects. MS was applied for 20 min to the right index finger. MS intervention was defined as simple, lateral, rubbing, vertical, or random. Simple intervention stimulated the entire finger pad at the same time. Lateral intervention stimulated with moving between left and right on the finger pad. Rubbing intervention stimulated with moving the stimulus probe, fixed by protrusion pins. Vertical intervention stimulated with moving in the forward and backward directions on the finger pad. Random intervention stimulated to finger pad with either row protrudes. MEPs were measured in the first dorsal interosseous muscle to transcranial magnetic stimulation of the left motor cortex before, immediately after, and 5–20 min after intervention. Following simple intervention, MEP amplitudes were significantly smaller than preintervention, indicating depression of corticospinal excitability. Following lateral, rubbing, and vertical intervention, MEP amplitudes were significantly larger than preintervention, indicating facilitation of corticospinal excitability. The modulation of corticospinal excitability depends on MS patterns. These results contribute to knowledge regarding the use of MS as a neurorehabilitation tool to neurological disorder.
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institution Kabale University
issn 2090-5904
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language English
publishDate 2018-01-01
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series Neural Plasticity
spelling doaj-art-8937851cd71b49a2bcb80b1b053423282025-02-03T01:02:28ZengWileyNeural Plasticity2090-59041687-54432018-01-01201810.1155/2018/53835145383514Modulation of Corticospinal Excitability Depends on the Pattern of Mechanical Tactile StimulationSho Kojima0Hideaki Onishi1Shota Miyaguchi2Shinichi Kotan3Ryoki Sasaki4Masaki Nakagawa5Hikari Kirimoto6Hiroyuki Tamaki7Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata City, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata City, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata City, JapanDepartment of Rehabilitation, Tohoku University Hospital, Sendai City, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata City, JapanDepartment of Rehabilitation, Kanto Central Hospital, Setagaya-Ku, JapanDepartment of Sensorimotor Neuroscience, Graduate School of Biomedical & Health Sciences, Hiroshima University, Hiroshima City, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata City, JapanWe investigated the effects of different patterns of mechanical tactile stimulation (MS) on corticospinal excitability by measuring the motor-evoked potential (MEP). This was a single-blind study that included nineteen healthy subjects. MS was applied for 20 min to the right index finger. MS intervention was defined as simple, lateral, rubbing, vertical, or random. Simple intervention stimulated the entire finger pad at the same time. Lateral intervention stimulated with moving between left and right on the finger pad. Rubbing intervention stimulated with moving the stimulus probe, fixed by protrusion pins. Vertical intervention stimulated with moving in the forward and backward directions on the finger pad. Random intervention stimulated to finger pad with either row protrudes. MEPs were measured in the first dorsal interosseous muscle to transcranial magnetic stimulation of the left motor cortex before, immediately after, and 5–20 min after intervention. Following simple intervention, MEP amplitudes were significantly smaller than preintervention, indicating depression of corticospinal excitability. Following lateral, rubbing, and vertical intervention, MEP amplitudes were significantly larger than preintervention, indicating facilitation of corticospinal excitability. The modulation of corticospinal excitability depends on MS patterns. These results contribute to knowledge regarding the use of MS as a neurorehabilitation tool to neurological disorder.http://dx.doi.org/10.1155/2018/5383514
spellingShingle Sho Kojima
Hideaki Onishi
Shota Miyaguchi
Shinichi Kotan
Ryoki Sasaki
Masaki Nakagawa
Hikari Kirimoto
Hiroyuki Tamaki
Modulation of Corticospinal Excitability Depends on the Pattern of Mechanical Tactile Stimulation
Neural Plasticity
title Modulation of Corticospinal Excitability Depends on the Pattern of Mechanical Tactile Stimulation
title_full Modulation of Corticospinal Excitability Depends on the Pattern of Mechanical Tactile Stimulation
title_fullStr Modulation of Corticospinal Excitability Depends on the Pattern of Mechanical Tactile Stimulation
title_full_unstemmed Modulation of Corticospinal Excitability Depends on the Pattern of Mechanical Tactile Stimulation
title_short Modulation of Corticospinal Excitability Depends on the Pattern of Mechanical Tactile Stimulation
title_sort modulation of corticospinal excitability depends on the pattern of mechanical tactile stimulation
url http://dx.doi.org/10.1155/2018/5383514
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