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    An isodynamic high fidelity MRI compatible headphone

    Josephs, O. and Dick, Frederic and Sereno, Martin I. and Weiskopf, N. (2009) An isodynamic high fidelity MRI compatible headphone. NeuroImage 47 (S1), S186-S186. ISSN 1053-8119.

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    Abstract

    We have developed high fidelity MRI compatible headphones for fMRI experiments. Scanner manufacturers, and several small companies, produce MRI compatible headphones which operate under various physical principles including air tubes, magnet-less electrodynamic (http://www.mr-confon.de/) and electrostatic transducers (http://www.nordicneurolab.no/). These systems are often intended for communicating with and for providing diversion to subjects, and typically have a restricted, uneven frequency response. Our headphones have a smoothly varying and wide frequency response. The new headphones operate electrodynamically, like those of Confon but, in contrast to Confon, use an isodynamically (see reference) (iso – uniform, dyn - force) driven lightweight membrane.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Science > Psychological Sciences
    Research Centre: Brain and Cognitive Development, Centre for (CBCD)
    Depositing User: Sarah Hall
    Date Deposited: 07 May 2015 10:30
    Last Modified: 02 Dec 2016 11:18
    URI: http://eprints.bbk.ac.uk/id/eprint/12076

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