Access through the IBL ONE API or the public AWS bucket. The existing IBL behavior adapter now serves as the behavior-first slice, pinning the Brainwide Map ONE project and `Brainwidemap` release tag in provenance. Neural extensions should distinguish task trials, ephys sessions, probe insertions, and quality-control filters.
Dataset
IBL Neuropixels Brainwide Map 2025
Public IBL brain-wide Neuropixels release from mice performing the standardized visual decision-making task, including behavioral trials, wheel movement, video-derived variables, spike sorting, and histology metadata across many laboratories.
Access notes
Data formats
- IBL ALF objects
- ONE API datasets
- AWS S3 public bucket
- NumPy and Parquet-style processed arrays
Expected trial-table mapping
Canonical fields the harmonizer expects this dataset to populate.
| Canonical field | Source mapping |
|---|---|
| choice | IBL choice code mapped to left, right, or no-response. |
| correct | feedbackType mapped to boolean correctness. |
| evidence_strength | Absolute signed contrast. |
| feedback | reward or error from feedbackType and rewardVolume. |
| prior_context | probabilityLeft block value. |
| response_time | First wheel movement or response time relative to stimulus onset, with origin recorded. |
| session_id | IBL eid for the brainwide-map session. |
| stimulus_side | Source side among left, right, or zero-contrast assigned side. |
| stimulus_value | Signed contrast; contrastRight positive and contrastLeft negative. |
| subject_id | IBL subject identifier. |
| task_variables | wheel movement, go cue, stimulus onset, feedback time, block probability, video-derived motion energy or pupil fields where present, probe insertion ids, brain regions, and release/QC labels. |
| trial_index | Trial number within session. |
Caveats
- The behavior-first slice pins the Brainwidemap release tag, but ephys QC and neural inclusion filters remain deferred.
- The existing IBL behavior dataset already covers related task behavior, so comparisons must avoid double-counting sessions when both records are used.
Papers
Findings
Curves attached to this dataset on shared signed-evidence axes.
- The International Brain Laboratory et al. A brain-wide map of neural activity during complex behaviour. Nature 645:177-191, 2025. · psychometric processed-trial
- The International Brain Laboratory et al. Brain-wide representations of prior information in mouse decision-making. Nature 645:192-200, 2025. · psychometric · p_left=0.2 processed-trial
- The International Brain Laboratory et al. Brain-wide representations of prior information in mouse decision-making. Nature 645:192-200, 2025. · psychometric · p_left=0.5 processed-trial
- The International Brain Laboratory et al. Brain-wide representations of prior information in mouse decision-making. Nature 645:192-200, 2025. · psychometric · p_left=0.8 processed-trial
See all findings overlaid on shared axes.