Extended Data Fig. 3: Expert curation.
Example of a figure seen by the six expert curators that were asked to judge whether the black and gray waveforms came from the same unit. Curators could score a pair with ‘1’ (match), ‘0’ (unsure), or ‘−1’ (not a match). This example was found to be a match by both UnitMatch and stitched Kilosort. a, Average waveform across recording sites. b, Maximum recording site indicated (note, they overlap) on a 4-shank Neuropixels. c, Centroid trajectories. d, Average waveforms. e, Normalized waveforms (peak to base stretching). f, Same as c, but shown next to each other for black and gray unit. g, Spike times (x-axis) versus amplitude (y-axis), with the amplitude distribution next to it. Note that the amplitudes for ‘gray’ are drawn above ‘black’ for visibility. h, Autocorrelogram. i, Inter spike interval distribution. j, Reference population cross-correlation, which was 1 for this specific pair. k, reference population cross-correlation values between this pair of units (black line), relative to other possible pairs of units (distribution). Rank 2 means this cross-correlation value is the second highest of all possible pairs.
