Simultaneous EEG-fMRI reveals attention-dependent coupling of early face processing with a distributed cortical network.
Simultaneous EEG-fMRI reveals attention-dependent coupling of early face processing with a distributed cortical network.
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DOI:
10.1016/j.biopsycho.2017.12.002
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发表时间:
2018-03
影响因子:
2.6
通讯作者:
Johnstone T
中科院分区:
文献类型:
--
作者:
Bayer M;Rubens MT;Johnstone T
Distributed cortical activation to faces covaries with ERPs as early as 100 ms. Covariations depend on both sustained attention and trial-by-trial cognitive conflict. Top-down gating might apply to earlier visual processing stages than previously known. The speed of visual processing is central to our understanding of face perception. Yet the extent to which early visual processing influences later processing in distributed face processing networks, and the top-down modulation of such bottom-up effects, remains unclear. We used simultaneous EEG-fMRI to investigate cortical activity that showed unique covariation with ERP components of face processing (C1, P1, N170, P3), while manipulating sustained attention and transient cognitive conflict employing an emotional face-word Stroop task. ERP markers of visual processing within 100 ms after stimulus onset showed covariation with brain activation in precuneous, posterior cingulate gyrus, left middle temporal gyrus, left inferior frontal gyrus and frontal operculum, and a left lateral parietal-occipital cluster, illustrating the impact of early stage processing on higher-order mechanisms. Crucially, this covariation depended on sustained attentional focus and was absent for incongruent trials, suggesting flexible top-down gating of bottom-up processing.
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影响因子:
2.6
作者:
Beall, Paula M.;Herbert, Andrew M.
通讯作者:
Herbert, Andrew M.
影响因子:
2.6
作者:
Gobbini, M. Ida;Haxby, James V.
通讯作者:
Haxby, James V.
影响因子:
16.2
作者:
Andrews-Hanna, Jessica R.;Reidler, Jay S.;Sepulcre, Jorge;Poulin, Renee;Buckner, Randy L.
通讯作者:
Buckner, Randy L.
DOI:
10.1093/cercor/bhn062
发表时间:
2009-01
期刊:
Cerebral cortex (New York, N.Y. : 1991)
影响因子:
--
作者:
De Martino B;Kalisch R;Rees G;Dolan RJ
通讯作者:
Dolan RJ
影响因子:
2.9
作者:
Eimer, Martin;Gosling, Angela;Kiss, Monika
通讯作者:
Kiss, Monika