Add example notebook for dandiset 001754#133
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bendichter merged 3 commits intodandi:masterfrom Feb 27, 2026
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…space flight) Demonstrates streaming NWB data from DANDI, exploring file structure, visualizing position trajectories, spike rasters, computing place fields with pynapple, and comparing across behavioral epochs (Escher Staircase vs Magic Carpet). Includes side-by-side comparison with pre-computed rate maps from the original Knierim, McNaughton & Poe (2000) analysis. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Adds a new phase covering the workflow for creating educational demonstration notebooks that show how to read, visualize, and analyze NWB data from DANDI. Tested on dandiset 001754 (hippocampal place cells during space flight). PR submitted: dandi/example-notebooks#133 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The pynapple compute_2d_tuning_curves was auto-ranging from data min/max, causing the Y axis to start at ~65 instead of 0 (since the rat never visited the lower Y range). This misaligned the computed maps with the pre-computed ones. Adding minmax=((0, 255), (0, 255)) forces both axes to span the full pixel coordinate range. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Use flat tuple minmax=(0, 255, 0, 255) as expected by pynapple's compute_2d_tuning_curves. Re-executed notebook so all figures reflect the corrected bin ranges. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
remfile, exploring file structure, visualizing position trajectories, spike rasters, computing 2D place fields withpynapple, and comparing spatial representations across behavioral epochs (Escher Staircase vs Magic Carpet)Contents
001754/CatalystNeuro/001754_demo.ipynb— executed notebook with all outputs001754/CatalystNeuro/environment.yml— conda environment specification001754/CatalystNeuro/README.md— dataset description and setup instructionsTest plan
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