Delay estimation for cortical-muscular interaction via the rate of voxels change

Jinbiao Liu, Gansheng Tan, Yixuan Sheng, Jiaole Wang, Wenjie Lu, Honghai Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is evident that corticomuscular coherence (CMC), representing the functional coupling between motor cortex and muscle tissues, plays a crucial role in neurophysiologic studies and applications. It is hypothesized that there is an unknown time delay comprising at least neural conduction time in the process of corticomuscular interaction. In this study, we developed a novel delay estimation method, defined as the rate of voxels change (RVC) for the estimation of time delay in two coupled physiological signals. The RVC is the dynamic variation of the local CMCs observed in different time offsets. Both simulation and physiological data confirm the capability of RVC in estimating cortical-muscular delay. The underlying mechanisms of individual discrepancy of the latency is also investigated via exploring the correlation between delays, brain activity and motor performance. Correlation analyses indicate an intrinsic link between the connectivity strength of the brain network and the length of time delay in cortical-muscular interactions.

Original languageEnglish
Title of host publication2020 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2020
PublisherInstitute of Electrical and Electronics Engineers
Pages3897-3902
Number of pages6
ISBN (Electronic)9781728185262
ISBN (Print)9781728185279
DOIs
Publication statusPublished - 14 Dec 2020
Event2020 IEEE International Conference on Systems, Man, and Cybernetics - Toronto, Canada
Duration: 11 Oct 202014 Oct 2020
https://www.ieeesmc.org/conferences/calendar/event/655-2020-ieee-international-conference-on-systems-man-and-cybernetics-smc

Publication series

Name2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC)
PublisherIEEE
ISSN (Print)1062-922X
ISSN (Electronic)2577-1655

Conference

Conference2020 IEEE International Conference on Systems, Man, and Cybernetics
Abbreviated titleSMC 2020
Country/TerritoryCanada
CityToronto
Period11/10/2014/10/20
Internet address

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