Neuropixels 2 – Concatenating multiple banks in the IBL-ephys GUI.

[MM-DRIVE]

We routinely use the IBL pipeline for our Neuropixels 2.0 recordings from the mouse brainstem (~5 mm depth). I’d like to overlay the channels from two separate recordings—one taken on bank 0 and a second, later run on bank 1—in a single instance of the ephys_atlas_gui so I can verify the relative depth and identify surface channels across sessions. Is there a built-in (or recommended) way to concatenate / overlay channels from multiple banks so they appear as a single continuous shank in the GUI? If this isn’t currently supported, would renumbering channels and manually stitching the channels.localCoordinates arrays before launch be the best workaround? Any pointers to where in plot_data.py (or elsewhere) one could add multi-bank support would be greatly appreciated

[jsiegle]

Concatenating data from multiple banks is supported, provided the input data is formatted correctly.

This function demonstrates how to extract data from multiple recordings processed with SpikeInterface: https://github.com/AllenNeuralDynamics/aind-ephys-ibl-gui-conversion/blob/4b997e62755550a1da393f2232f591ca1e28aec2/src/aind_ephys_ibl_gui_conversion/ephys.py#L747-L1044

For example, if there are two separate recordings, one per bank, this should save the metadata that's needed to stitch them together in the IBL GUI.