Chang S Nam1, Yongwoong Jeon2, Young-Joo Kim3, Insuk Lee4, Kyungkyu Park5. 1. Department of Industrial Engineering, University of Arkansas, Fayetteville, AR 72701, USA. Electronic address: cnam@uark.edu. 2. Department of Industrial Engineering, University of Arkansas, Fayetteville, AR 72701, USA. Electronic address: yjeon@uark.edu. 3. Department of Industrial Engineering, University of Arkansas, Fayetteville, AR 72701, USA. Electronic address: yxk008@uark.edu. 4. Department of Business Administration, Sogang University, Seoul, Republic of Korea. Electronic address: insuklee@sogang.ac.kr. 5. Department of Business Administration, Sogang University, Seoul, Republic of Korea. Electronic address: kyungkyu@sogang.ac.kr.
Abstract
OBJECTIVE: To investigate movement imagery-related lateralization of event-related (de)synchronization (ERD/ERS) during two motor-imagery tasks with varying movement duration (brief versus continuous). METHODS: Twelve subjects performed or kinesthetically imagined the indicated movement (left or right hand movement) for 1 s (brief) or 5 s (continuous) while electroencephalograms (EEGs) were recorded using 16 electrodes covering the sensorimotor cortex of the brain according to the modified 10-20 system. RESULTS: Significant hemispheric differences were found between contralateral and ipsilateral area in mu ERD, mu ERS and beta ERD during both brief and continuous conditions, showing contralateral dominance of mu and beta ERD and ipsilateral dominance of mu ERS. Beta ERS showed a significant ipsilateral dominance only in the brief condition. Movement imagery duration influenced the lateralization of mu ERD, beta ERD, and beta ERS, but not mu ERS. CONCLUSIONS: The results of this study will aid in clarifying movement-related lateralization in association with imagery tasks under varying movement duration. SIGNIFICANCE: For designing an EEG-based brain-computer interface (BCI) for people with severe neuromuscular impairments, movement imagery-related lateralization can play a key role in utilizing motor-imagery tasks as a control or communication strategy.
OBJECTIVE: To investigate movement imagery-related lateralization of event-related (de)synchronization (ERD/ERS) during two motor-imagery tasks with varying movement duration (brief versus continuous). METHODS: Twelve subjects performed or kinesthetically imagined the indicated movement (left or right hand movement) for 1 s (brief) or 5 s (continuous) while electroencephalograms (EEGs) were recorded using 16 electrodes covering the sensorimotor cortex of the brain according to the modified 10-20 system. RESULTS: Significant hemispheric differences were found between contralateral and ipsilateral area in mu ERD, mu ERS and beta ERD during both brief and continuous conditions, showing contralateral dominance of mu and beta ERD and ipsilateral dominance of mu ERS. Beta ERS showed a significant ipsilateral dominance only in the brief condition. Movement imagery duration influenced the lateralization of mu ERD, beta ERD, and beta ERS, but not mu ERS. CONCLUSIONS: The results of this study will aid in clarifying movement-related lateralization in association with imagery tasks under varying movement duration. SIGNIFICANCE: For designing an EEG-based brain-computer interface (BCI) for people with severe neuromuscular impairments, movement imagery-related lateralization can play a key role in utilizing motor-imagery tasks as a control or communication strategy.
Authors: Laura Williams; Nikta Pirouz; J C Mizelle; William Cusack; Rob Kistenberg; Lewis A Wheaton Journal: Clin Neurophysiol Date: 2016-07-16 Impact factor: 3.708
Authors: Alexander Frolov; Pavel Bobrov; Elena Biryukova; Mikhail Isaev; Yaroslav Kerechanin; Dmitry Bobrov; Alexander Lekin Journal: Front Robot AI Date: 2020-07-30
Authors: Alexander B Remsik; Peter L E van Kan; Shawna Gloe; Klevest Gjini; Leroy Williams; Veena Nair; Kristin Caldera; Justin C Williams; Vivek Prabhakaran Journal: Front Hum Neurosci Date: 2022-07-06 Impact factor: 3.473
Authors: Ole Jensen; Ali Bahramisharif; Robert Oostenveld; Stefan Klanke; Avgis Hadjipapas; Yuka O Okazaki; Marcel A J van Gerven Journal: Front Psychol Date: 2011-05-27
Authors: Chiara Spaccasassi; H Chris Dijkerman; Angelo Maravita; Oscar Ferrante; Maartje C de Jong Journal: J Cogn Neurosci Date: 2021-09-01 Impact factor: 3.420