The time-course of feature-based attention effects dissociated from temporal expectation and target-related processes.
The time-course of feature-based attention effects dissociated from temporal expectation and target-related processes.
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基于特征注意力效应的时间顺序与时间期望和与目标相关的过程分离。
DOI：
10.1038/s41598-022-10687-x
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发表时间：
2022-04-28
影响因子：
4.6
通讯作者：
Rich, Anina N.
中科院分区：
文献类型：
--
作者：
Moerel, Denise;Grootswagers, Tijl;Robinson, Amanda K.;Shatek, Sophia M.;Woolgar, Alexandra;Carlson, Thomas A.;Rich, Anina N.
选择性注意力在竞争性的感官输入中优先考虑相关信息。时间分辨的电生理研究表明，与无人注意的刺激相比，注意的刺激具有更强的表征能力，这被解释为注意对信息编码的影响。然而，由于注意力往往被操纵，使只有参加刺激的目标被记住和/或响应，许多报告的注意力效应已与目标相关的过程，如视觉短期记忆或决策混淆。此外，注意效应可能会受到时间预期的影响。本研究的目的是利用多变量模式分析的脑电（EEG）数据，同时（1）控制目标相关的混淆，（2）直接调查的时间期望的影响，研究注意力对视觉加工的动态影响。与会者观看了快速序列的重叠定向光栅对，同时检测一个特定方向的“目标”光栅。我们操纵的注意力，一个光栅出席和其他忽略（提示颜色），和时间的期望，与刺激开始时间可预测或不可预测。我们仅通过分析非靶试验来控制靶相关处理混淆。被关注和被忽略的光栅最初在EEG传感器的响应模式中被同等地编码。注意力的影响，优先编码的出席刺激，出现约230毫秒后刺激发作。这种注意力效应发生时，即使控制目标相关的处理混淆，无论刺激发作的预期。这些结果提供了洞察的影响，基于特征的注意竞争的视觉信息的动态处理。
Selective attention prioritises relevant information amongst competing sensory input. Time-resolved electrophysiological studies have shown stronger representation of attended compared to unattended stimuli, which has been interpreted as an effect of attention on information coding. However, because attention is often manipulated by making only the attended stimulus a target to be remembered and/or responded to, many reported attention effects have been confounded with target-related processes such as visual short-term memory or decision-making. In addition, attention effects could be influenced by temporal expectation about when something is likely to happen. The aim of this study was to investigate the dynamic effect of attention on visual processing using multivariate pattern analysis of electroencephalography (EEG) data, while (1) controlling for target-related confounds, and (2) directly investigating the influence of temporal expectation. Participants viewed rapid sequences of overlaid oriented grating pairs while detecting a “target” grating of a particular orientation. We manipulated attention, one grating was attended and the other ignored (cued by colour), and temporal expectation, with stimulus onset timing either predictable or not. We controlled for target-related processing confounds by only analysing non-target trials. Both attended and ignored gratings were initially coded equally in the pattern of responses across EEG sensors. An effect of attention, with preferential coding of the attended stimulus, emerged approximately 230 ms after stimulus onset. This attention effect occurred even when controlling for target-related processing confounds, and regardless of stimulus onset expectation. These results provide insight into the effect of feature-based attention on the dynamic processing of competing visual information.
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影响因子：
3.2
作者：
Gaspelin, Nicholas;Luck, Steven J.
通讯作者：
Luck, Steven J.
DOI：
10.1073/pnas.0907658106
发表时间：
2010-01-05
影响因子：
11.1
作者：
Buffalo, Elizabeth A.;Fries, Pascal;Desimone, Robert
通讯作者：
Desimone, Robert
影响因子：
3
作者：
Czigler, I;Geczy, I
通讯作者：
Geczy, I
影响因子：
4.6
作者：
Bang JW;Rahnev D
通讯作者：
Rahnev D
影响因子：
56.9
作者：
Buschman, Timothy J.;Miller, Earl K.
通讯作者：
Miller, Earl K.