| Zugriffsnummer | 19296 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Cross-correlation analysis of the correspondence between magnetoencephalographic and near-infrared cortical signals |
| Autor(in); Institution |
Sander-Thömmes, Tilmann; 8.2, Biosignale, PTB-Berlin
Liebert, A.; Institute of Biocybernetics and Biomedical Engineering, Warsaw, POLAND
Burghoff, Martin; 8.2, Biosignale, PTB-Berlin
Wabnitz, Heidrun; 8.3, Biomedizinische Optik, PTB-Berlin
Macdonald, Rainer; 8.3, Biomedizinische Optik, PTB-Berlin
Trahms, Lutz; 8.2, Biosignale, PTB-Berlin
|
| Quelle/Jahr | Methods of Information in Medicine: 46 (2007), 2, 164 - 168 |
| ISSN | 0026-1270 |
| Verlag | Stuttgart: Schattauer |
| Freie Schlagworte | Direct current magnetoencephalography ; Neuro-Vascular Coupling ; Near Infrared Spectroscopy ; DC-Magnetoencephalography ; Independent Component Analysis |
| Zusammenfassung | The study of neurovascular coupling benefits greatly from combined measurements of neu-ronal and vascular signals. Using a magnetometer in an extremely well shielded room a broadband magnetoencephalogram was measured simultaneously with time-resolved near-infrared spectroscopy during a motor activity paradigm. The raw MEG and NIRS data were denoised separately using independent component analysis. After averaging the resulting signals show motor activity related changes. The temporal correspondence between MEG and NIRS was assessed plotting a combined trajectory and calculating a cross-correlation. At movement onset the NIRS signal shows a different behaviour compared to the MEG signal. |
