@ElDuvelle @lukesjulson @martin_a_vinck @samamckenzie @john_widloski @hugospiers @ak_gillespie Impedance may not matter as much as we think, cf https://t.co/NRiSC85aPW (although in polytrodes, but don't know whether that makes a difference)
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The change from planar to spherical diffusion happens at ~10 um radius Pt electrodes at 1 kHz. E.g. 2.5 um radius electrode has 2 MOhm impedance rather than 6 MOhm impedance. That may actually be a big deal since 2 MOhm may be perfectly good for recording:
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Open Access UCL Research: Does Impedance Matter When Recording Spikes With Polytrodes - UCL Discovery https://t.co/2hmyjpWqTR
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RT @EngertLab: I very much enjoyed this frontiers article out of Adam Kampff’s lab. Check out the last sentence in the abstract, we need mo…