Research Project
Grant-in-Aid for Challenging Exploratory Research
We aim to resolve the spatiotemporal changes in brain activation using simultaneous electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) recordings. We proposed a method that employed whole scalp EEG data to generate regressors needed for the analysis of fMRI using the general linear model. Using simultaneous EEG-fMRI recordings from healthy subjects and patients with epilepsy, we obtained activation maps showing brain regions that were consistent with working memory task and suspected or confirmed sources of the epileptogenic activity. We also identified spatiotemporal activation patterns during epileptic spikes that include sequential activation of multiple brain regions involved, shifting location of the peak activation, and local spreading of activated regions. These findings demonstrated the efficacy of the method in resolving rapidly changing activation patterns with sub-second temporal resolution observed during cognitive task and epileptic spikes.
All 2017 2016 2015
All Journal Article (6 results) (of which Int'l Joint Research: 1 results, Peer Reviewed: 6 results, Open Access: 4 results, Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 4 results, Invited: 1 results) Book (2 results)
J Neuropathol Exp Neurol
Volume: in press Issue: 8 Pages: 801-811
10.1093/jnen/nlw053
Amyotroph Lateral Scler Frontotemporal Degener
Volume: 17 Issue: 7-8 Pages: 571-579
10.1080/21678421.2016.1211151
Scientific Reports
Volume: 6 Issue: 1 Pages: 31895-31895
10.1038/srep31895
Ann Clin Transl Neurol
Volume: 3 Issue: 7 Pages: 537-546
10.1002/acn3.324
J Neurol Neurosurg Psychiatry
Volume: in press Issue: 8 Pages: 851-8
10.1136/jnnp-2015-311541
J Neural Transm (Vienna)
Volume: 122 Issue: 12 Pages: 1663-72
10.1007/s00702-015-1436-y