SpikeInterface / SpikeInterface/spikeinterface

Difference in clusters sorted by spykingcircus2 and mountainsort5

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Description

Hi ,
I have a question regarding the significant disparity in the number of clusters identified by MountainSort5 and SpykingCircus2. I have a tetrode recording that lasts for 1277 seconds. When I use SpykingCircus2 for sorting, I get 153 clusters, of which 78 have an ISI violation ratio below 0.5. In contrast, the same recording sorted with MountainSort5 results in only 4 clusters, with just 1 cluster exceeding the ISI threshold.

What could be causing such a large difference in the number of clusters?

here is what the probe looks like:
Figure 63

this is the raster form the mountainsort5:
Figure 65

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Research direction

Start by comparing the SpykingCircus2 and MountainSort5 runs for the 1277-second tetrode recording, including their sorting parameters and probe configuration. Use the attached probe and MountainSort5 raster as context, and document a reproducible explanation for the difference in cluster counts and ISI-violation results.

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Assessment

Tech stack
python
Domain
data
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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