Cross-Correlation of Motor Activity Signals from dc-Magnetoencephalography, Near-Infrared Spectroscopy, and Electromyography
Joint Authors
Wabnitz, Heidrun
Trahms, Lutz
Leistner, Stefanie
Mackert, Bruno-Marcel
Macdonald, Rainer
Sander, Tilmann H.
Source
Computational Intelligence and Neuroscience
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-01-24
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Neuronal and vascular responses due to finger movements were synchronously measured using dc-magnetoencephalography (dcMEG) and time-resolved near-infrared spectroscopy (trNIRS).
The finger movements were monitored with electromyography (EMG).
Cortical responses related to the finger movement sequence were extracted by independent component analysis from both the dcMEG and the trNIRS data.
The temporal relations between EMG rate, dcMEG, and trNIRS responses were assessed pairwise using the cross-correlation function (CCF), which does not require epoch averaging.
A positive lag on a scale of seconds was found for the maximum of the CCF between dcMEG and trNIRS.
A zero lag is observed for the CCF between dcMEG and EMG.
Additionally this CCF exhibits oscillations at the frequency of individual finger movements.
These findings show that the dcMEG with a bandwidth up to 8 Hz records both slow and faster neuronal responses, whereas the vascular response is confirmed to change on a scale of seconds.
American Psychological Association (APA)
Sander, Tilmann H.& Leistner, Stefanie& Wabnitz, Heidrun& Mackert, Bruno-Marcel& Macdonald, Rainer& Trahms, Lutz. 2010. Cross-Correlation of Motor Activity Signals from dc-Magnetoencephalography, Near-Infrared Spectroscopy, and Electromyography. Computational Intelligence and Neuroscience،Vol. 2010, no. 2010, pp.1-8.
https://search.emarefa.net/detail/BIM-497907
Modern Language Association (MLA)
Sander, Tilmann H.…[et al.]. Cross-Correlation of Motor Activity Signals from dc-Magnetoencephalography, Near-Infrared Spectroscopy, and Electromyography. Computational Intelligence and Neuroscience No. 2010 (2010), pp.1-8.
https://search.emarefa.net/detail/BIM-497907
American Medical Association (AMA)
Sander, Tilmann H.& Leistner, Stefanie& Wabnitz, Heidrun& Mackert, Bruno-Marcel& Macdonald, Rainer& Trahms, Lutz. Cross-Correlation of Motor Activity Signals from dc-Magnetoencephalography, Near-Infrared Spectroscopy, and Electromyography. Computational Intelligence and Neuroscience. 2010. Vol. 2010, no. 2010, pp.1-8.
https://search.emarefa.net/detail/BIM-497907
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-497907