文章基本信息

标题：Cholinergic Modulation of the Default Mode Like Network in Rats
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作者：Lore M. Peeters ; Monica van den Berg ; Rukun Hinz 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2020
卷号：23
期号：9
页码：1-22
DOI：10.1016/j.isci.2020.101455
语种：English
出版社：Elsevier
摘要：SummaryThe discovery of the default mode network (DMN), a large-scale brain network that is suppressed during attention-demanding tasks, had major impact in neuroscience. This network exhibits an antagonistic relationship with attention-related networks. A better understanding of the processes underlying modulation of DMN is imperative, as this network is compromised in several neurological diseases. Cholinergic neuromodulation is one of the major regulatory networks for attention, and studies suggest a role in regulation of the DMN. In this study, we unilaterally activated the right basal forebrain cholinergic neurons and observed decreased right intra-hemispheric and interhemispheric FC in the default mode like network (DMLN). Our findings provide critical insights into the interplay between cholinergic neuromodulation and DMLN, demonstrate that differential effects can be exerted between the two hemispheres by unilateral stimulation, and open windows for further studies involving directed modulations of DMN in treatments for diseases demonstrating compromised DMN activity.Graphical AbstractDisplay OmittedHighlights•We expressed DREADDs in the cholinergic neurons of the right basal forebrain (BFB)•We provide a tool to selectively modulate the default mode like network (DMLN)•Cholinergic stimulation decreases functional connectivity (FC) in the DMLN•Stimulation of right BFB induces lateralized effects on FC in DMLN and TPNNervous System Anatomy; Molecular Biology; Neuroscience; Systems Biology