Cortical connectivity is embedded in resting state at columnar resolution.
Cortical connectivity is embedded in resting state at columnar resolution.
复制标题
DOI:
10.1016/j.pneurobio.2022.102263
复制
发表时间:
2022-06
影响因子:
6.7
通讯作者:
Gharbawie, Omar A.
中科院分区:
文献类型:
--
作者:
Card, Nicholas S.;Gharbawie, Omar A.
关键词:
Resting state (RS) fMRI is now widely used for gaining insight into the organization of brain networks. Functional connectivity (FC) inferred from RS-fMRI is typically at macroscale, which is too coarse for much of the detail in cortical architecture. Here, we examined whether imaging RS at higher contrast and resolution could reveal cortical connectivity with columnar granularity. In longitudinal experiments (~1.5 years) in squirrel monkeys, we partitioned sensorimotor cortex using dense microelectrode mapping and then recorded RS with intrinsic signal optical imaging (RS-ISOI, 20 μm/pixel). FC maps were benchmarked against microstimulation-evoked activation and traced anatomical connections. These direct comparisons showed high correspondence in connectivity patterns across methods. The fidelity of FC maps to cortical connections indicates that granular details of network organization are embedded in RS. Thus, for recording RS, the field-of-view and effective resolution achieved with ISOI fills a wide gap between fMRI and invasive approaches (2-photon imaging, electrophysiology). RS-ISOI opens exciting opportunities for high resolution mapping of cortical networks in living animals.
登录
查看更多内容
DOI:
10.1126/science.1153276
发表时间:
2008-07-18
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Ekstrom LB;Roelfsema PR;Arsenault JT;Bonmassar G;Vanduffel W
通讯作者:
Vanduffel W
DOI:
10.1523/jneurosci.1777-11.2011
发表时间:
2011-08-10
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Gharbawie OA;Stepniewska I;Qi H;Kaas JH
通讯作者:
Kaas JH
影响因子:
2.5
作者:
Dancause, N;Barbay, S;Nudo, RJ
通讯作者:
Nudo, RJ
影响因子:
5.3
作者:
Card, Nicholas S.;Gharbawie, Omar A.
通讯作者:
Gharbawie, Omar A.
影响因子:
16.6
作者:
Chan, Allen W.;Mohajerani, Majid H.;Murphy, Timothy H.
通讯作者:
Murphy, Timothy H.