Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6269947 | Journal of Neuroscience Methods | 2010 | 7 Pages |
We describe a new cable-free, non-telemetric method for synchronized electrophysiological and video recordings of seizure activity in freely moving mice. The electrophysiological recordings were made by a head-mounted 4-channel data-logging device, allowing the mouse to move freely in its cage, and even to be moved from cage to cage under ongoing recording. Seizures were studied in Synapsin I/II double knock-out (SynDKO) mice, a genetically engineered mouse line that shows seizures upon daily handling procedures such as tail lifting during cage changes, much in resemblance to the more studied El mouse. The ability to elicit seizures through daily handling in SynDKO mice undergoing electrophysiological recording is a significant improvement in comparison to the traditional cable-based set-up. Furthermore, with its four channels and a sample rate of up to 500Â Hz, the data-logging device opens for more varied electrophysiological studies than other available cable-free systems.
Research highlightsⶠA cable-free head-mounted data logger recorded mouse handling evoked seizure EEGs. ⶠLogged seizures were provoked in the same manner as non-logged control seizures. ⶠLogged-EEG/Video synchronization allowed detailed seizure behavior analysis.