Abstract:
:Neuroimaging evidence suggests that the default mode network (DMN) exhibits antagonistic activity with dorsal attention (DAN) and salience (SN) networks. Here we use human intracranial electroencephalography to investigate the behavioral relevance of fine-grained dynamics within and between these networks. The three networks show dissociable profiles of task-evoked electrophysiological activity, best captured in the high-frequency broadband (HFB; 70-170 Hz) range. On the order of hundreds of milliseconds, HFB responses peak fastest in the DAN, at intermediate speed in the SN, and slowest in the DMN. Lapses of attention (behavioral errors) are marked by distinguishable patterns of both pre- and post-stimulus HFB activity within each network. Moreover, the magnitude of temporally lagged, negative HFB coupling between the DAN and DMN (but not SN and DMN) is associated with greater sustained attention performance and is reduced during wakeful rest. These findings underscore the behavioral relevance of temporally delayed coordination between antagonistic brain networks.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Kucyi A,Daitch A,Raccah O,Zhao B,Zhang C,Esterman M,Zeineh M,Halpern CH,Zhang K,Zhang J,Parvizi Jdoi
10.1038/s41467-019-14166-2subject
Has Abstractpub_date
2020-01-16 00:00:00pages
325issue
1issn
2041-1723pii
10.1038/s41467-019-14166-2journal_volume
11pub_type
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