Ephys Atlas

International Brain Laboratory

Electrophysiology
across the
mouse brain.

Explore task-independent electrophysiology features, task-event responses, and anatomical gene-expression data across the mouse brain.

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

One shared viewer

Explore distinct kinds of brain data

Coronal, sagittal, and horizontal slices follow the same position across datasets.

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

Task-independent ephys features

Explore electrophysiology measurements summarized at channel, cluster, and voxel scales. These features describe recordings independently of behavioral task events.

Responses to task events

Explore responses to task events computed from spiking data across brain regions.

Gene expression and anatomy

Browse AGEA gene-expression volumes from the Allen Institute alongside the anatomical atlas. MERFISH can join this category in the future.

Upload your own data

Import a compatible dataset from your device and explore it in the same linked views. Your data stays in your browser.

About the project

IBL Ephys Atlas

The IBL Ephys Atlas brings together task-independent electrophysiology features, Brain-Wide Map task-event responses, and anatomy datasets such as AGEA in one spatial viewer.

Developed by the International Brain Laboratory, with anatomy data from external sources including the Allen Institute.

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