Nature CommunicationsNorepinephrine-mediated arousal fluctuations drive inverted U-shaped functional connectivity dynamicsChuanjun TongWeishuai LiYijuan ZouYing XiaMengchao PeiKaiwei ZhangYichao LuoZhifeng Liang2025-12-13Full textDOI https://doi.org/10.1038/s41467-025-66436-x