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• W2922355439 abstract "Extensive in vivo imaging studies investigate the hippocampal neural network function, mainly focusing on the dorsal CA1 region given its optical accessibility. Multi-modality fMRI with simultaneous hippocampal electrophysiological recording reveal broad cortical correlation patterns, but the detailed spatial hippocampal functional map remains lacking given the limited fMRI resolution. In particular, hemodynamic responses linked to specific neural activity are unclear at the single-vessel level across hippocampal vasculature, which hinders the deciphering of the hippocampal malfunction in animal models and the translation to critical neurovascular coupling (NVC) patterns for human fMRI. We simultaneously acquired optogenetically-driven neuronal Ca2+ signals with single-vessel blood-oxygen-level-dependent (BOLD) and cerebral-blood-volume (CBV)-fMRI from individual venules and arterioles. Distinct spatiotemporal patterns of hippocampal hemodynamic responses were correlated to optogenetically evoked and spreading depression-like calcium events. The calcium event-related single-vessel hemodynamic modeling revealed significantly reduced NVC efficiency upon spreading depression-like (SDL) events, providing a direct measure of the NVC function at various hippocampal states." @default.
• W2922355439 created "2019-03-22" @default.
• W2922355439 creator A5030092141 @default.
• W2922355439 creator A5040802400 @default.
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• W2922355439 creator A5080842292 @default.
• W2922355439 creator A5090870414 @default.
• W2922355439 date "2019-11-20" @default.
• W2922355439 modified "2023-10-01" @default.
• W2922355439 title "Mapping optogenetically-driven single-vessel fMRI with concurrent neuronal calcium recordings in the rat hippocampus" @default.
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• W2922355439 doi "https://doi.org/10.1038/s41467-019-12850-x" @default.
• W2922355439 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6868210" @default.
• W2922355439 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31748553" @default.
• W2922355439 hasPublicationYear "2019" @default.
• W2922355439 type Work @default.
• W2922355439 sameAs 2922355439 @default.

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