| Zugriffsnummer | 11090 |
| Dokumenttyp | Konferenzartikel in Zeitschrift |
| Sprache | Deutsch |
| Titel | DC-MEG - direkte Messung in einem extrem magnetisch geschirmten Raum |
| Autor(in); Institution |
Burghoff, Martin; 8.2, Biosignale, PTB-Berlin
Sander-Thömmes, Tilmann; 8.2, Biosignale, PTB-Berlin
Schnabel, Allard; 8.2, Biosignale, PTB-Berlin
Drung, Dietmar; 7.5, Tieftemperaturthermodynamik und -technologie, PTB-Berlin
Curio, Gabriel; Charité, Campus Benjamin Franklin, Berlin, GERMANY
Mackert, Bruno-Marcel; Charité, Campus Benjamin Franklin, Berlin, GERMANY
Trahms, Lutz; 8.2, Biosignale, PTB-Berlin
|
| Quelle/Jahr | Biomedizinische Technik: 49 (2004), Ergänzungsband 2,Teil 2, 700 - 701 |
| ISSN | 0939-4990 |
| Verlag | Berlin: Schiele & Schön |
| Konferenzangaben | 38. Jahrestagung der Deutschen Gesellschaft für Biomedizinische Technik im VDE - BMT 2004, Ilmenau, 22.-24. September 2004, Deutschland |
| Freie Schlagworte | DC-MEG ; Biomagnetismus |
| Zusammenfassung | Direct measurements of low amplitude, slow frequency brain activity ((0.1Hz) have become technically feasible with a high time resolution by using Superconducting Quantum Interference Devices (SQUIDs) in a magnetically extremely well shielded room. In a first physiological paradigm directly meas-ured DC-magnetoencephalogram (DC-MEG) revealed that sustained fields during motor cortex activation rise with a sharp slope immediately at onset, whereas after the end their relaxation to the resting level is slower and is delayed by several seconds. Hence, this DC-MEG technique opens up a new avenue to analyze even the fast dynamics of slow brain activity. |
