Ephys Atlas

International Brain Laboratory

Electrophysiology
across the
mouse brain.

Browse electrical features across brain regions and inspect their distributions alongside the anatomy.

Open atlas Read the user guide

The atlas runs in your browser without an account.

A three-dimensional mouse brain in the atlas, with slightly separated anatomical structures and regional feature colors.
Inside the atlas3-D anatomy · regional features

Anatomical views

Browse linked brain slices

Coronal, sagittal, and horizontal slices follow the same position in the brain.

Linked coronal, sagittal, and horizontal atlas views showing denoised AP RMS regional values and anatomical boundaries.
AP RMS (denoised) · Ephys Atlas channels · 2026 W32

Compare brain regions

Choose an electrophysiology feature, find a brain region, and compare its values with other regions on the atlas.

Inspect values and sources

View distributions and linked volume slices. Each dataset includes its source and release information.

Load your own dataset

Import a compatible dataset to use these tools with your own data. Local imports stay in your browser.

About the project

IBL Ephys Atlas

The IBL Ephys Atlas displays regional electrophysiology summaries, voxel-scale features, and brain-wide analysis results on the mouse brain atlas.

Developed by the International Brain Laboratory.

For dataset sources, release information, and provenance, open Data details in the viewer. Use these records when citing the data.

Open atlas

Acknowledgements

Anatomical atlas

The anatomical reference comes from the Allen Mouse Brain Common Coordinate Framework (CCFv3), provided by the Allen Institute.

Wang et al., 2020 · Cell

IBL support

IBL receives support from Simons Foundation International, Simons Foundation, Wellcome, and the National Institutes of Health.

Supporters and partners at IBL Core