High-T-c superconducting quantum interference device recordings of spontaneous brain activity: Towards high-T-c magnetoencephalography
Artikel i vetenskaplig tidskrift, 2012

We have performed single-and two-channel high transition temperature (high-T-c) superconducting quantum interference device (SQUID) magnetoencephalography (MEG) recordings of spontaneous brain activity in two healthy human subjects. We demonstrate modulation of two well-known brain rhythms: the occipital alpha rhythm and the mu rhythm found in the motor cortex. We further show that despite higher noise-levels compared to their low-T-c counterparts, high-T-c SQUIDs can be used to detect and record physiologically relevant brain rhythms with comparable signal-to-noise ratios. These results indicate the utility of high-T-c technology in MEG recordings of a broader range of brain activity.

field magnetic-resonance

meg

oscillations

system

biomagnetic measurements

squid magnetometers

Författare

Fredrik Öisjöen

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Justin Schneiderman

Göteborgs universitet

Gerard Amoros Figueras

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Maxim Chukharkin Leonidovich

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Alexei Kalaboukhov

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Anders Hedström

Sahlgrenska universitetssjukhuset

Mikael Elam

Göteborgs universitet

Dag Winkler

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Applied Physics Letters

0003-6951 (ISSN) 1077-3118 (eISSN)

Vol. 100 Article Number: 132601- 132601

Ämneskategorier

Fysik

DOI

10.1063/1.3698152