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Lithographically defined microelectrode arrays now permit high-density recording and stimulation in the brain and are facilitating new insights into the organization and function of the central nervous system. They will soon allow more detailed mapping of neural structures than has ever before been possible, and capabilities for highly localized drug-delivery are being added for treating disorders...
This paper reports a 64-channel microsystem for chronic neural recording. The system scans all the channels simultaneously, detects any neural spikes, and reports their occurrence wirelessly to the external world. Any one of the selected channels can also be digitized and read out wirelessly to allow inspection of the full analog waveform. The neural signals are amplified with 60 dB of gain, a programmable...
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