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Recording of auditory evoked potentials in rat using a 60 channel polyimide electrode array: Preliminary results

: Schuettler, M.; Praetorius, M.; Kammer, S.; Schick, B.; Stieglitz, T.


Clark, J.W.:
Engineering in Medicine and Biology, 2002. Vol.3 : Proceedings of the Second Joint 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference 2002
Piscataway: IEEE Service Center, 2002
ISBN: 0-7803-7612-9
ISSN: 0589-1019
Annual international conference of the Engineering in Medicine and Biology Society (EMBS) <24, 2002, Houston>
Annual fall meeting of the Biomedical Engineering Society (BMES) <2002, Houston>
Fraunhofer IBMT ()

For high channel recording of auditory evoked potentials (AEP), a 60 channel polyimide electrode array was manufactured by micromachining methods. Based on in vitro evaluations of iridium, activated iridium oxide film (AIROF) and platinum black as electrode materials, the latter was chosen for recording AEPs in vivo from the rat brain. The electrode array picked up a strong sound-related artifact that could be eliminated from the neural signal by mathematical subtraction of an in vitro recorded artifact.