TY - JOUR
T1 - Influence of Stochastic Resonance on Manual Dexterity in Children With Developmental Coordination Disorder
T2 - A Double-Blind Interventional Study
AU - Nobusako, Satoshi
AU - Osumi, Michihiro
AU - Matsuo, Atsushi
AU - Furukawa, Emi
AU - Maeda, Takaki
AU - Shimada, Sotaro
AU - Nakai, Akio
AU - Morioka, Shu
N1 - Funding Information:
This work was supported by JSPS KAKENHI, Grant-in-Aid for Young Scientists (Grant Number 18K17700), JSPS
Funding Information:
The authors wish to acknowledge and thank the children who participated in this study and their parents and caregivers. Funding. This work was supported by JSPS KAKENHI, Grant-in-Aid for Young Scientists (Grant Number 18K17700), JSPS KAKENHI, Grant-in-Aid for Scientific Research (C) (Grant Number 16K09981).
Publisher Copyright:
© Copyright © 2021 Nobusako, Osumi, Matsuo, Furukawa, Maeda, Shimada, Nakai and Morioka.
PY - 2021/3/30
Y1 - 2021/3/30
N2 - Background: There is increasing evidence that the stochastic resonance (SR) phenomenon provided by subthreshold mechanical noise stimulation improves the sensory-motor system. However, the effect of SR on children with developmental coordination disorder (DCD) is unclear. The purpose of this study was to assess whether SR activated by subthreshold vibrotactile noise stimulation of the wrist influences manual dexterity in children with DCD. Methods: A double-blind interventional study was conducted. Participants were 30 children (age: 9.3 ± 1.44 years, range 6–11 years; 27 male, three female; 25 right-handed, five left-handed) meeting DCD diagnostic criteria in DSM-5. The manual dexterity test was administered the day before SR intervention (baseline-data). SR was elicited using subthreshold vibrotactile noise stimulation at 60% of the vibrotactile threshold measured at the wrist. SR was delivered two times and the manual dexterity test was administered during each SR stimulation block (SR-on condition) and after each SR stimulation block (SR-off), for a total of four measurements. Target outcomes were the component score, the standard score, and the percentile score of the manual dexterity test. Results: The manual dexterity test scores in the SR-on condition were significantly improved compared to scores at the baseline and in the SR-off condition (p < 0.001). Conclusions: The present study showed that subthreshold noise stimulation eliciting SR significantly improved manual dexterity outcomes in children with DCD during stimulation but not after stimulation. Future studies will need to investigate the carry-over effects of SR stimulation.
AB - Background: There is increasing evidence that the stochastic resonance (SR) phenomenon provided by subthreshold mechanical noise stimulation improves the sensory-motor system. However, the effect of SR on children with developmental coordination disorder (DCD) is unclear. The purpose of this study was to assess whether SR activated by subthreshold vibrotactile noise stimulation of the wrist influences manual dexterity in children with DCD. Methods: A double-blind interventional study was conducted. Participants were 30 children (age: 9.3 ± 1.44 years, range 6–11 years; 27 male, three female; 25 right-handed, five left-handed) meeting DCD diagnostic criteria in DSM-5. The manual dexterity test was administered the day before SR intervention (baseline-data). SR was elicited using subthreshold vibrotactile noise stimulation at 60% of the vibrotactile threshold measured at the wrist. SR was delivered two times and the manual dexterity test was administered during each SR stimulation block (SR-on condition) and after each SR stimulation block (SR-off), for a total of four measurements. Target outcomes were the component score, the standard score, and the percentile score of the manual dexterity test. Results: The manual dexterity test scores in the SR-on condition were significantly improved compared to scores at the baseline and in the SR-off condition (p < 0.001). Conclusions: The present study showed that subthreshold noise stimulation eliciting SR significantly improved manual dexterity outcomes in children with DCD during stimulation but not after stimulation. Future studies will need to investigate the carry-over effects of SR stimulation.
KW - children
KW - developmental coordination disorder
KW - double-blind study
KW - manual dexterity
KW - stochastic resonance
KW - subthreshold vibrotactile noise stimulation
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U2 - 10.3389/fneur.2021.626608
DO - 10.3389/fneur.2021.626608
M3 - Article
AN - SCOPUS:85104151940
SN - 1664-2295
VL - 12
JO - Frontiers in Neurology
JF - Frontiers in Neurology
M1 - 626608
ER -