Impaired semantic processing during task-set switching: evidence from the N400 in rapid serial visual presentation.
Impaired semantic processing during task-set switching: evidence from the N400 in rapid serial visual presentation.
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任务集切换期间语义处理受损：来自 N400 快速串行视觉呈现的证据。
DOI：
10.1111/j.1469-8986.2010.01040.x
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发表时间：
2011
期刊：
影响因子：
3.7
通讯作者：
P. Jolicoeur
中科院分区：
文献类型：
--
作者：
F. Vachon;P. Jolicoeur
认知系统能够灵活地重新配置心理资源以适应新的任务。虽然已知任务集转换对行为表现有害，但对这些影响对刺激处理的确切位点知之甚少。我们测量了事件相关电位来探讨任务集转换对语义处理的神经后果。我们研究了在任务集切换或不切换的条件下，在快速连续视觉呈现中嵌入两个目标词中的第二个词所诱发的上下文敏感的N400成分。在没有切换的情况下，N400不受目标分离滞后的影响，而在切换条件下，当目标在序列中相邻时，N400被延迟和衰减。这些发现表明任务集重构暂时阻止了语义激活，为语义加工的非自动性提供了证据。
The cognitive system is able to reconfigure mental resources flexibly to adapt to new a task. While task-set switching is known to be detrimental to behavioral performance, less is known about the precise loci of these effects on stimulus processing. We measured event-related potentials to explore the neural consequences of task-set switching on semantic processing. We examined the context-sensitive N400 component evoked by the second of two target words embedded in a rapid serial visual presentation under conditions that involved either a task-set switch or no switching. Whereas the N400 was unaffected by the lag separating the targets in the absence of switching, it was delayed and attenuated in the switch condition when the targets were adjacent in the sequence. These findings indicate that task-set reconfiguration temporarily prevents semantic activation and provide evidence for the nonautomaticity of semantic processing of words.
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DOI：
10.1037//0278-7393.24.4.979
发表时间：
1998-07
期刊：
Journal of experimental psychology. Learning, memory, and cognition
影响因子：
--
作者：
M. Potter;Marvin M. Chun;Bradley S. Banks;Margaret Muckenhoupt
通讯作者：
M. Potter;Marvin M. Chun;Bradley S. Banks;Margaret Muckenhoupt
影响因子：
3.7
作者：
M. Kutas
通讯作者：
M. Kutas
影响因子：
3.7
作者：
HOLCOMB, PJ
通讯作者：
HOLCOMB, PJ
DOI：
10.1037//0096-1523.28.5.1149
发表时间：
2002-10-01
影响因子：
2.1
作者：
Potter, MC;Staub, A;O'Connor, DH
通讯作者：
O'Connor, DH