Distinct Frontoparietal Networks Underlying Attentional Effort and Cognitive Control.
Distinct Frontoparietal Networks Underlying Attentional Effort and Cognitive Control.
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DOI：
10.1162/jocn_a_01112
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发表时间：
2017-07
影响因子：
3.2
通讯作者：
Lustig C
中科院分区：
文献类型：
--
作者：
Berry AS;Sarter M;Lustig C
我们研究了在注意力挑战过程中与稳定表现相关的大脑活动模式。我们的研究结果揭示了不同的模式，额顶叶活动和功能连接与增加注意力的努力与保留性能在挑战注意力。参与者进行了视觉信号检测任务，并没有呈现的感知注意力的挑战（不断变化的背景）。激发条件增加了额顶叶区域的激活，包括右中背侧/背外侧前额叶皮层（RPFC）、近似Brodmann区（BA）9和上级顶叶皮层。我们发现，更大的行为影响的挑战条件与更大的RPFC激活，这表明认知控制区域的参与增加并不总是足以保持高水平的性能。RPFC和前扣带皮层（ACC）之间的功能连接在挑战条件下增加，也与性能下降，这表明这些地区的同步参与水平反映了个体差异的注意力。任务前，静息状态RPFC-ACC连接没有预测随后的性能，这表明RPFC-ACC连接动态增加，在任务执行过程中，响应性能递减和错误反馈。与此相反，RPFC和上级顶叶皮层之间的功能连接，不仅在任务，而且在任务前的休息与保存性能的挑战条件。总之，这些数据表明，静息额顶叶连接预测依赖于这些相同的认知控制网络的注意力任务的表现，并且在具有挑战性的条件下，其他控制区域动态地与该网络耦合以启动认知控制的参与。
We investigated the brain activity patterns associated with stabilizing performance during challenges to attention. Our findings revealed distinct patterns of frontoparietal activity and functional connectivity associated with increased attentional effort versus preserved performance during challenged attention. Participants performed a visual signal detection task with and without presentation of a perceptual-attention challenge (changing background). The challenge condition increased activation in frontoparietal regions including right mid-dorsal/dorsolateral prefrontal cortex (RPFC), approximating Brodmann area (BA) 9, and superior parietal cortex. We found that greater behavioral impact of the challenge condition was correlated with greater RPFC activation, suggesting that increased engagement of cognitive control regions is not always sufficient to maintain high levels of performance. Functional connectivity between RPFC and anterior cingulate cortex (ACC) increased during the challenge condition and was also associated with performance declines, suggesting that the level of synchronized engagement of these regions reflects individual differences in attentional effort. Pre-task, resting state RPFC-ACC connectivity did not predict subsequent performance, suggesting that RPFC – ACC connectivity increased dynamically during task performance in response to performance decrement and error feedback. In contrast, functional connectivity between RPFC and superior parietal cortex not only during the task but also during pre-task rest was associated with preserved performance in the challenge condition. Together, these data suggest resting frontoparietal connectivity predicts performance on attention tasks that rely on those same cognitive control networks, and that under challenging conditions, other control regions dynamically couple with this network to initiate the engagement of cognitive control.
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影响因子：
5.7
作者：
Chu, Carlton;Ni, Yizhao;Tan, Geoffrey;Saunders, Craig J.;Ashburner, John
通讯作者：
Ashburner, John
DOI：
10.1073/pnas.95.24.14529
发表时间：
1998-11-24
影响因子：
11.1
作者：
Dehaene, S;Kerszberg, M;Changeux, JP
通讯作者：
Changeux, JP
影响因子：
7.6
作者：
Callicott, JH;Ramsey, NF;Weinberger, DR
通讯作者：
Weinberger, DR
影响因子：
4.5
作者：
Demeter, Elise;Guthrie, Sally K.;Lustig, Cindy
通讯作者：
Lustig, Cindy
影响因子：
16.2
作者：
Euston DR;Gruber AJ;McNaughton BL
通讯作者：
McNaughton BL