Matches in SemOpenAlex for { <https://semopenalex.org/work/W4366998392> ?p ?o ?g. }
- W4366998392 abstract "Abstract Large-scale functional networks have been characterized in both rodent and human brains, typically by analyzing fMRI-BOLD signals. However, the relationship between fMRI-BOLD and underlying neural activity is complex and incompletely understood, which poses challenges to interpreting network organization obtained using this technique. Additionally, most work has assumed a disjoint functional network organization (i.e., brain regions belong to one and only one network). Here, we employed wide-field Ca 2+ imaging simultaneously with fMRI-BOLD in mice expressing GCaMP6f in excitatory neurons. We determined cortical networks discovered by each modality using a mixed-membership algorithm to test the hypothesis that functional networks are overlapping rather than disjoint. Our results show that multiple BOLD networks are detected via Ca 2+ signals; there is considerable network overlap (both modalities); networks determined by low-frequency Ca 2+ signals are only modestly more similar to BOLD networks; and, despite similarities, important differences are detected across modalities (e.g., brain region “network diversity”). In conclusion, Ca 2+ imaging uncovered overlapping functional cortical organization in the mouse that reflected several, but not all, properties observed with fMRI-BOLD signals." @default.
- W4366998392 created "2023-04-27" @default.
- W4366998392 creator A5000010988 @default.
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- W4366998392 date "2023-04-26" @default.
- W4366998392 modified "2023-09-27" @default.
- W4366998392 title "Multimodal measures of spontaneous brain activity reveal both common and divergent patterns of cortical functional organization" @default.
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