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A 64(128)-channel multisite neuronal recording system.

U G Hofmann·A Folkers·F Mösch·D Höhl·M Kindlundh·P Norlin
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Abstract

We used a recently described all-dry silicon etch process for SOI wafers to fabricate 64-site electrode arrays in stereotrode arrangement for acute cortical recordings. The fork-like probes are connected to preamplification units by flexible, Y-shaped interconnects. This facilitates maximal experimental flexibility for simultaneously recording from all available channels from the cortex of anaesthetised rats. Preconditioned signals are amplified by a novel modular main amp, which may be software or dial controlled. Signals are 16bit digitized, recorded, analyzed, stored and processed on a DSP-based modular data acquisition system. Digital data is processed, filtered and denoised on all up to (4*32) 128 channels based on an extremely fast wavelet transformation framework.

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Amplifiers, ElectronicAnimalsCerebral CortexData DisplayElectroencephalographyEquipment DesignMicrocomputersMicroelectrodesNeuronsRatsSignal Processing, Computer-AssistedSiliconJournal ArticleResearch Support, Non-U.S. Gov't

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U G Hofmann, A Folkers, F Mösch, D Höhl, M Kindlundh, P Norlin. 2002. A 64(128)-channel multisite neuronal recording system.. https://doi.org/10.1515/bmte.2002.47.s1a.194

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