Pre-seizure state identified by diffuse optical tomography.
Pre-seizure state identified by diffuse optical tomography.
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DOI:
10.1038/srep03798
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发表时间:
2014-01-21
影响因子:
4.6
通讯作者:
Jiang H
中科院分区:
文献类型:
--
作者:
Zhang T;Zhou J;Jiang R;Yang H;Carney PR;Jiang H
In epilepsy it has been challenging to detect early changes in brain activity that occurs prior to seizure onset and to map their origin and evolution for possible intervention. Here we demonstrate using a rat model of generalized epilepsy that diffuse optical tomography (DOT) provides a unique functional neuroimaging modality for noninvasively and continuously tracking such brain activities with high spatiotemporal resolution. We detected early hemodynamic responses with heterogeneous patterns, along with intracranial electroencephalogram gamma power changes, several minutes preceding the electroencephalographic seizure onset, supporting the presence of a “pre-seizure” state. We also observed the decoupling between local hemodynamic and neural activities. We found widespread hemodynamic changes evolving from local regions of the bilateral cortex and thalamus to the entire brain, indicating that the onset of generalized seizures may originate locally rather than diffusely. Together, these findings suggest DOT represents a powerful tool for mapping early seizure onset and propagation pathways.
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影响因子:
14.5
作者:
Federico, P;Abbott, DF;Jackson, GD
通讯作者:
Jackson, GD
影响因子:
5.7
作者:
DeSalvo, Matthew N.;Schridde, Ulrich;Mishra, Asht M.;Motelow, Joshua E.;Purcaro, Michael J.;Danielson, Nathan;Bai, Xiaoxiao;Hyder, Fahmeed;Blumenfeld, Hal
通讯作者:
Blumenfeld, Hal
影响因子:
5.7
作者:
Cooper, R. J.;Hebden, Jeremy C.;Austin, T.
通讯作者:
Austin, T.
影响因子:
3
作者:
Gallagher, Anne;Lassonde, Marse;Nguyen, Dang Khoa
通讯作者:
Nguyen, Dang Khoa
DOI:
10.1016/j.yebeh.2011.09.001
发表时间:
2011-12
期刊:
Epilepsy & behavior : E&B
影响因子:
--
作者:
Carney PR;Myers S;Geyer JD
通讯作者:
Geyer JD