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Advanced hand-prostheses that can be interfaced directly with the nervous system are being developed to capture motor intent from upper limb amputees. One approach is to record neural activity of peripheral nerves (PN) in the residual limb using longitudinal intrafascicular electrodes (LIFEs). LIFE recordings using commercial recording systems from amputated human nerves show broad spikes with amplitudes...
Brain recording and stimulating systems are of major importance in neuroscience. They include an electrode or an array of electrodes, at the neuro-electronic interface. The electrodes NEX 100 and MS 306 are commonly used for accurate placement in deep sites of rats' brain, but few characterization data are available. After considerations related to the interface electrical model, this paper exposes...
Neural recording and processing systems are key instruments for investigating brain mechanisms, related to pathologies for example. For preliminary investigations on the mechanisms, we don't exactly know what the useful information is and how we should process it; thus we propose to use a reconfigurable device for the recording systems before full-custom ASIC fabrication. We use Large-Scale FPAA for...
We present the design and implementation of linear-phase delay filters for ultra-low power neural signal processing. The filters are intended to implement a low-distortion delay element for automatic biopotential detection in neural recording implants. Continuous-time OTA-C filters are used to realize a 9th-order equiripple transfer function presenting a constant group delay. This analog delay allows...
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