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An adaptive LFP sensor
conference contribution
posted on 2018-08-16, 00:00 authored by Mahboubeh Parastarfeizabadi, Abbas KouzaniAbbas Kouzani© 2018 IEEE. Local field potentials (LFPs) are electrophysiological signals with a wide range of amplitude variations from 10 μV to 1 mV, depending on several factors including electrode placement, recording depth, number and sign of brain sources contribution, brain tissue properties, etc. In this paper, the design of an adaptive gain-adjustable LFP sensing device is proposed. The device can cope with a wide range of LFP signal amplitude variations over different individuals, or over long-term chronic use in one specific subject. This LFP neural sensing device is capable of 50-100 dB dynamic gain amplification by detecting the LFP initial level (10 μ V - 1 mV). It is also miniature, light-weight, and cost effective, suitable for pre-clinical neuroscience research. The performance of the device has been successfully validated using bench-top experiments by using AC, and pre-recorded neural signals, under fixed-gain and adaptable-gain settings.
History
Event
Medical Measurements and Applications. Symposium (2018 : Rome, Italy)Pagination
1 - 6Publisher
IEEELocation
Rome, ItalyPlace of publication
Piscataway, N.J.Publisher DOI
Start date
2018-06-11End date
2018-06-13ISBN-13
9781538633915Language
engPublication classification
E Conference publication; E1 Full written paper - refereedTitle of proceedings
MeMeA 2018 - 2018 IEEE International Symposium on Medical Measurements and Applications, ProceedingsUsage metrics
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