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There is No test-retest reliability of brain activation induced by robotic passive hand movement: A functional NIRS study

Title
There is No test-retest reliability of brain activation induced by robotic passive hand movement: A functional NIRS study
Authors
Bae, Sung JinLee, YongheeChang, Pyung-Hun
DGIST Authors
Bae, Sung Jin; Lee, Yonghee; Chang, Pyung-Hun
Issue Date
2020-10
Citation
Brain and Behavior, 10(10), e01788
Type
Article
Article Type
Article
Author Keywords
activation mapbrain activationfNIRSintraclass correlation coefficientrobotic passive movementtest-retest reliability
Keywords
NEAR-INFRARED SPECTROSCOPYMOTOR REHABILITATIONPREMOTOR CORTICESFINGER EXTENSIONSTROKEPLASTICITYFNIRSREPRODUCIBILITYOXYGENATIONIMPROVES
ISSN
2162-3279
Abstract
Introduction: The basic paradigm of rehabilitation is based on the brain plasticity, and for promoting it, test–retest reliability (TRR) of brain activation in which certain area of the brain is repeatedly activated is required. In this study, we investigated whether the robotic passive movement has the TRR of brain activation. While active training has been shown to have TRR, but there still have been arguments over the TRR by passive movement. Methods: In order to test TRR, 10 repetitive sessions and various intervals (1 day, 3 days, 7 days, 23 days, 15 min, and 6 hr) were applied to five subjects, which had the same statistical power as applying two sessions to 50 subjects. In each session, three robot speeds (0.25, 0.5, and 0.75 Hz) were applied to provide passive movement using the robot. The fNIRS signal (oxy-Hb) generated in the primary sensorimotor area (SM1) was measured on a total of 29 channels. At this time, we used activation maps and intraclass correlation coefficient (ICC) values to examine the TRR and the effect of robot speeds and intervals on TRR. Results: As a result, activation maps showed prominent variation regardless of robot speeds and interval, and the ICC value (=0.002) showed no TRR of brain activation for robotic passive movement. Conclusion: The brain activation induced by the robotic passive movement alone has very poor TRR, suggesting that further enhancement is required to strengthen the TRR by complementing active user engagements. © 2020 The Authors. Brain and Behavior published by Wiley Periodicals LLC.
URI
http://hdl.handle.net/20.500.11750/12842
DOI
10.1002/brb3.1788
Publisher
John Wiley and Sons Inc.
Files:
There are no files associated with this item.
Collection:
Department of Robotics EngineeringETC1. Journal Articles


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