The temporal locus of the interaction between working memory consolidation and the attentional blink
The temporal locus of the interaction between working memory consolidation and the attentional blink
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DOI：
10.1111/j.1469-8986.2010.01033.x
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发表时间：
2010-11-01
期刊：
影响因子：
3.7
通讯作者：
Schuboe, Anna
中科院分区：
文献类型：
--
作者：
Akyuerek, Elkan G.;Leszczynski, Marcin;Schuboe, Anna
同时工作记忆负荷的增加被证明会放大注意瞬脱。本研究探讨了这种现象的时间轨迹，通过使用双快速串行视觉呈现范式，使测量偏侧事件相关电位。P3成分被证明是受工作记忆负荷和目标刺激之间的滞后，符合当前的时间注意模型和功能解释的P3记忆巩固。短目标滞后和高记忆负荷的P3振幅降低。P2分量只受滞后的影响，而不受记忆负荷的影响。重要的是，N2pc组件也调制滞后和记忆负荷。结果表明，早期注意加工（如标记的N2PC）被抑制的工作记忆的参与，目前的许多时间注意理论没有很好地预测的现象增加。
An increase in concurrent working memory load has been shown to amplify the attentional blink. The present study investigated the temporal locus of this phenomenon, by using a dual rapid serial visual presentation paradigm that enabled the measurement of lateralized event-related potentials. The P3 component was shown to be affected by both working memory load and the lag between the target stimuli, consistent with current models of temporal attention and a functional explanation of the P3 in terms of memory consolidation. P3 amplitude was reduced for short target lags and high memory loads. The P2 component was affected by lag only, and not memory load. Importantly, the N2pc component was modulated also by both lag and memory load. The results showed that early attentional processing (as marked by the N2pc) was suppressed by increased involvement of working memory, a phenomenon not well predicted by many current theories of temporal attention.