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Hi Katja, Yes, we have had an Optoacoustics mic inside our MSR for over a year now. I was skeptical at first, but we conducted reasonably extensive testing and the device is basically magnetically silent. We have it mounted about 1.5 m away from the sensor array and there are no detectable artifacts during passive recordings or actual use of the mic. We use it for language production paradigms and the sound quality is excellent. I have attached the spec sheet for the device we use. Hope this helps. Best, Tony ___________________________________________________________________________ Tony W. Wilson, Ph.D Scientific Director, Center for Magnetoencephalography (MEG) Department of Pharmacology & Experimental Neuroscience (PEN) Department of Neurological Sciences University of Nebraska Medical Center Tel: 402-552-6431 Fax: 402-559-5747 [log in to unmask] <[log in to unmask]> http://www.unmc.edu/pharmacology/wilson.htm On Tue, Dec 10, 2013 at 7:16 AM, < [log in to unmask]> wrote: > Dear colleagues, > > > > does any of you have experience with a fiber optic microphone (built for > fMRI) in your MEG laboratory? Maybe with FOMRI-III by Optoacoustics? > > > > We would very much appreciate your opinion, > > best > > Katja > > > > -------------------------------------------------------------------------- > Dr. Katja Biermann-Ruben > Clinical Neuroscience and Medical Psychology > Building 23.02, Floor 03, Room 45 > Heinrich-Heine-University Duesseldorf > Universitaetsstrasse 1 > > > > 40225 Duesseldorf > Germany > -------------------------------------------------------------------------- > > > > Tel.: +49 211 - 81 - 12161 > Fax.: +49 211 - 81 - 13015 > mail.: [log in to unmask] > -------------------------------------------------------------------------- > > >