NeuroNexus · neuronexus.com · Glossary
Mouse and Rat EEG Grids (EEG Series)
An EEG array records from the outer surface of the skull, with no bone removed, no dura opened and no cortex exposed; skull and scalp spread the signal, so it measures rhythms and state rather than local circuit activity, in a preparation that is held for months.
The difficulty moves to alignment and fixation. Designs are dimensioned from bregma, so placement decides what is sampled: a layout drawn for mouse cortex placed on a rat skull samples different structures. A drop of water adheres the array while the fixation cures. Catalog designs for mouse and rat have 6 to 32 platinum disc sites of 500 µm on 12 µm polyimide, with cables of 7, 8, 10 and 50 mm; the choice between a grid and screw electrodes for a mouse is under mouse EEG electrode. Applications are sleep and wake staging (vigilance state), seizure detection, cortical rhythms, and long-duration monitoring, as in the mouse EEG biomarker studies of Jonak et al. (2018) and the rat SYNGAP1 study of Katsanevaki et al. (2024); the four grid families and their packaging are under thin-film grid, the reference decision in the EEG referencing guide, and the surgical steps in the EEG surgical guide; the mouse grids are on Mouse EEG Electrodes and Grids.
Records and stimulates. Research use only.
Typical values
| Catalog designs | 9 |
|---|---|
| Sites | 6 to 32 |
| Site diameter | 500 µm |
| Substrate | 12 µm polyimide; platinum sites |
| Placement | skull surface, referenced to bregma |
References
Related Terms
Cite this term
NeuroNexus. "Mouse and Rat EEG Grids (EEG Series)." NeuroNexus Glossary, updated 2026-10-28. https://www.neuronexus.com/resources/glossary/eeg-series