Reaching movement onset- and end-related characteristics of EEG spectral power modulations

Reaching movement onset- and end-related char ...
Evariste Demandt, Evariste Dem ...
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April 26, 2022 | History

Reaching movement onset- and end-related characteristics of EEG spectral power modulations

Abstract: The spectral power of intracranial field potentials shows movement-related modulations during reaching movements to different target positions that in frequencies up to the high-γ range (approximately 50 to above 200 Hz) can be reliably used for single-trial inference of movement parameters. However, identifying spectral power modulations suitable for single-trial analysis for non-invasive approaches remains a challenge. We recorded non-invasive electroencephalography (EEG) during a self-paced center-out and center-in arm movement task, resulting in eight reaching movement classes (four center-out, four center-in). We found distinct slow (≤5 Hz), μ (7.5–10 Hz), β (12.5–25 Hz), low-γ (approximately 27.5–50 Hz), and high-γ (above 50 Hz) movement onset- and end-related responses. Movement class-specific spectral power modulations were restricted to the β band at approximately 1 s after movement end and could be explained by the sensitivity of this response to different static, post-movement electromyography (EMG) levels. Based on the β band, significant single-trial inference of reaching movement endpoints was possible. The findings of the present study support the idea that single-trial decoding of different reaching movements from non-invasive EEG spectral power modulations is possible, but also suggest that the informative time window is after movement end and that the informative frequency range is restricted to the β band

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Universität
Language
English

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Edition Notes

Frontiers in Neuroscience. 6 (2012), 65, DOI 10.3389/fnins.2012.00065, issn: 1662-453X

IN COPYRIGHT http://rightsstatements.org/page/InC/1.0 rs

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Published in
Freiburg

Classifications

Dewey Decimal Class
612.8

The Physical Object

Pagination
Online-Ressource

Edition Identifiers

Open Library
OL37839494M
OCLC/WorldCat
992999428
Deutsche National Bibliothek
1134867778

Work Identifiers

Work ID
OL27727760W

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