Multimodal in vivo recording using transparent graphene microelectrodes illuminates spatiotemporal seizure dynamics at the microscale
| Autor: | A. T. Charlie Johnson, Ramya Vishnubhotla, Danielle S. Bassett, Brendan B. Murphy, Richard E. Rosch, Brian Litt, Nicolette Driscoll, Arian Ashourvan, Hajime Takano, Flavia Vitale, Olivia O. Dickens, Kathryn A. Davis |
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| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Time Factors QH301-705.5 Computer science Medicine (miscellaneous) Mice Transgenic Neural circuits Article General Biochemistry Genetics and Molecular Biology 03 medical and health sciences Epilepsy 0302 clinical medicine Calcium imaging Predictive Value of Tests Seizures medicine Animals Ictal Calcium Signaling Biology (General) Microscale chemistry Cerebral Cortex Miniaturization Optical Imaging Signal Processing Computer-Assisted Equipment Design Network dynamics medicine.disease Brain Waves Disease Models Animal Microelectrode Electrophysiology 030104 developmental biology Temporal resolution Graphite Electrocorticography General Agricultural and Biological Sciences Microelectrodes Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Communications Biology Communications Biology, Vol 4, Iss 1, Pp 1-14 (2021) |
| ISSN: | 2399-3642 |
| Popis: | Neurological disorders such as epilepsy arise from disrupted brain networks. Our capacity to treat these disorders is limited by our inability to map these networks at sufficient temporal and spatial scales to target interventions. Current best techniques either sample broad areas at low temporal resolution (e.g. calcium imaging) or record from discrete regions at high temporal resolution (e.g. electrophysiology). This limitation hampers our ability to understand and intervene in aberrations of network dynamics. Here we present a technique to map the onset and spatiotemporal spread of acute epileptic seizures in vivo by simultaneously recording high bandwidth microelectrocorticography and calcium fluorescence using transparent graphene microelectrode arrays. We integrate dynamic data features from both modalities using non-negative matrix factorization to identify sequential spatiotemporal patterns of seizure onset and evolution, revealing how the temporal progression of ictal electrophysiology is linked to the spatial evolution of the recruited seizure core. This integrated analysis of multimodal data reveals otherwise hidden state transitions in the spatial and temporal progression of acute seizures. The techniques demonstrated here may enable future targeted therapeutic interventions and novel spatially embedded models of local circuit dynamics during seizure onset and evolution. Driscoll, Rosch et al. design transparent graphene-based surface probes to achieve simultaneous electrophysiological recording and calcium imaging of epileptic seizures in mice. This method could be used to investigate circuit dynamics during seizure onset and evolution with high temporal and spatial resolution. |
| Databáze: | OpenAIRE |
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