Flexible establishment of functional brain networks supports attentional modulation of unconscious cognition
Flexible establishment of functional brain networks supports attentional modulation of unconscious cognition
复制标题
灵活建立功能性大脑网络支持无意识认知的注意力调节
DOI:
10.1002/hbm.22566
复制
发表时间:
2014
影响因子:
4.8
通讯作者:
Kiefer
中科院分区:
文献类型:
--
作者:
Ulrich;Kiefer
In classical theories of attention, unconscious automatic processes are thought to be independent of higher‐level attentional influences. Here, we propose that unconscious processing depends on attentional enhancement of task‐congruent processing pathways implemented by a dynamic modulation of the functional communication between brain regions. Using functional magnetic resonance imaging, we tested our model with a subliminally primed lexical decision task preceded by an induction task preparing either a semantic or a perceptual task set. Subliminal semantic priming was significantly greater after semantic compared to perceptual induction in ventral occipito‐temporal (vOT) and inferior frontal cortex, brain areas known to be involved in semantic processing. The functional connectivity pattern of vOT varied depending on the induction task and successfully predicted the magnitude of behavioral and neural priming. Together, these findings support the proposal that dynamic establishment of functional networks by task sets is an important mechanism in the attentional control of unconscious processing.Hum Brain Mapp 35:5500–5516, 2014. ©2014 Wiley Periodicals, Inc.
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影响因子:
16.2
作者:
Mueller S;Wang D;Fox MD;Yeo BT;Sepulcre J;Sabuncu MR;Shafee R;Lu J;Liu H
通讯作者:
Liu H
影响因子:
2.4
作者:
Gade, Mmam;Koch, Iring
通讯作者:
Koch, Iring
影响因子:
3.2
作者:
Kiefer, Markus;Sim, Eun-Jin;Graf, Markus
通讯作者:
Graf, Markus
影响因子:
--
作者:
MEYER, DE;SCHVANEVELDT, RW
通讯作者:
SCHVANEVELDT, RW
DOI:
--
发表时间:
1977
期刊:
--
影响因子:
--
作者:
W. Schneider;R. Shiffrin
通讯作者:
W. Schneider;R. Shiffrin