Cited 2 time in webofscience Cited 3 time in scopus

Distinction of directional coupling in sensorimotor networks between active and passive finger movements using fNIRS

Title
Distinction of directional coupling in sensorimotor networks between active and passive finger movements using fNIRS
Authors
Lee, Seung HyunJin, Sang HyeonAn, Jinung
DGIST Authors
Lee, Seung Hyun; Jin, Sang Hyeon; An, Jinung
Issue Date
2018-06
Citation
Biomedical Optics Express, 9(6), 2859-2870
Type
Article
Article Type
Article
ISSN
2156-7085
Abstract
The purpose of this study is to investigate cerebral cortex activation during active movement and passive movement by using a functional near-infrared spectroscopy (fNIRS). Tasks were the flexion/extension of the right hand finger by active movement and passive movement. Oxy-hemoglobin concentration changes calculated from fNIRS and analyzed the activation and connectivity so as to understand dynamical brain relationship. The results demonstrated that the brain activation in passive movements is similar to motor execution. During active movement, the estimated causality patterns showed significant causality value from the supplementary motor area (SMA) to the primary motor cortex (M1). During the passive movement, the causality from the primary somatosensory cortex (S1) to the primary motor cortex (M1) was stronger than active movement. These results demonstrated that active and passive movements had a direct effect on the cerebral cortex but the stimulus pathway of active and passive movement is different. This study may contribute to better understanding how active and passive movements can be expressed into cortical activation by means of fNIRS. © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
URI
http://hdl.handle.net/20.500.11750/8984
DOI
10.1364/BOE.9.002859
Publisher
The Optical Society
Related Researcher
  • Author An, Jinung Brain Robot Augmented InteractioN(BRAIN) Laboratory
  • Research Interests
Files:
Collection:
Division of Intelligent Robot1. Journal Articles
Division of Intelligent RobotBrain Robot Augmented InteractioN(BRAIN) Laboratory1. Journal Articles


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