Cleaning up units?

[jonahpearl]

Hi — I'm wondering what, if any, is the current recommended SI-compatible (ie not Phy) tool for manually cleaning up noise from otherwise-clean-seeming single units, and/or for splitting units that are obviously merged. Eg here are two examples from a short session I sorted with KS4. I know the SI curation module now allows manual splitting, but do the various GUIs have any capability for that? I can't find any documentation about splitting / manual cleaning other than documenting the fact that it is support in the abstract. Thanks!

Unit 385 — this has some very low amplitude "spikes" that I would consider noise:

Unit 251 — this unit has some waveforms that don't align with the template (at least on the channel I'm plotting) that I would consider noise:

[zm711]

@chrishalcrow or @alejoe91 can comment on use of SI GUI for cleanup.

[alejoe91]

Hi @jonahpearl

You can definitely use the SpikeInterface-GUI for splitting: https://github.com/SpikeInterface/spikeinterface-gui
You can split units in curation mode from any "raster" view (amplitude/spike depths, etc.) by selecting one or more regions with lasso selection and then hitting "Split" (or ctrl+S).

For the second case, there is no clear curation strategy. The high amplitude spikes could also come from another unit! So it's ambiguous whether removing them is the right call.