Journal Article

FZJ-2014-03439

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Source localization of brain activity using helium free interferometer

Dammers, J. (Corresponding Author)FZJ* ; Chocholacs, H.FZJ* ; Eich, E.FZJ* ; Boers, F.FZJ* ; Faley, M.FZJ* ; Dunin-Borkowski, R.FZJ* ; Shah, N. J.FZJ*

2014
American Institute of Physics Melville, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/17246  doi:10.1063/1.4880097

Abstract: To detect extremely small magnetic fields generated by the human brain, currently all commercial magnetoencephalography (MEG) systems are equipped with low-temperature (low-Tc) superconducting quantum interference device (SQUID) sensors that use liquid helium for cooling. The limited and increasingly expensive supply of helium, which has seen dramatic price increases recently, has become a real problem for such systems and the situation shows no signs of abating. MEG research in the long run is now endangered. In this study, we report a MEG source localization utilizing a single, highly sensitive SQUID cooled with liquid nitrogen only. Our findings confirm that localization of neuromagnetic activity is indeed possible using high-Tc SQUIDs. We believe that our findings secure the future of this exquisitely sensitive technique and have major implications for brain research and the developments of cost-effective multi-channel, high-Tc SQUID-based MEG systems.

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Contributing Institute(s):

1. Mikrostrukturforschung (PGI-5)
2. Physik der Medizinischen Bildgebung (INM-4)
3. JARA-BRAIN (JARA-BRAIN)

Research Program(s):

1. 423 - Sensorics and bioinspired systems (POF2-423) (POF2-423)

Appears in the scientific report 2014

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Database coverage:
; ; Allianz-Lizenz / DFG ; Current Contents - Social and Behavioral Sciences ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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