El Duvelle Neuro

#Tetrode recordings (in a bundle): did you know that you could record the same neuron on two different tetrodes?
or even three different tetrodes??

After checking that, turns out I usually have about 5-10% of neurons that are a duplicate of another neuron, in a given 8-tetrodes recording! They are pretty easy to detect with a firing rate correlation so I can remove them from analysis.
But I bet most neuron counts in published papers are inflated of that much!

Here's an example where you can see the spike plots and waveforms of 3 different, well-isolated clusters, recorded from 3 different tetrodes!

#Hexamaze #NeuroRat #Neuroscience #Ephys #Hippocampus #PlaceCells #SpikeSorting (-related)

Nov 14, 2024 at 5:21pmWeb
Show threadEl Duvelle NeuroNov 14, 2024
I know most people probably use #Probes nowadays, and if you spike-sort all channels together this shouldn't be a problem. I also haven't seen it (yet) with independently-moveable tetrodes, which makes sense as they'll be farther away from each other. So it's probably just restricted to bundles of tetrodes, but still, we have lots of papers out there that use bundles!