Decoding the Influence of Anticipatory States on Visual Perception in the Presence of Temporal Distractors
Decoding the Influence of Anticipatory States on Visual Perception in the Presence of Temporal Distractors
复制标题
解码存在时间干扰因素时预期状态对视觉感知的影响
DOI：
10.1101/143123
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Ede F
中科院分区：
文献类型：
--
作者：
Ede F
预期状态有助于优先考虑相关的感知目标，而不是竞争性的干扰刺激，并放大早期大脑对这些目标的反应。在这里，我们结合联合收割机在人类的脑电图记录与多变量刺激解码，以解决是否预期也增加了这些反应中包含的目标身份信息的量，并询问目标是如何优先于干扰时，这些竞争的时间。我们发现，预期线索不仅提高视觉目标的表征，但也延迟干扰这些目标表征所造成的时间相邻的干扰刺激可能标志着一个保护窗口保留高保真目标处理。增强的目标解码和干扰阻力进一步预测的衰减后8-14赫兹α振荡。因此，这些研究结果揭示了多种机制，通过这些机制，预期状态有助于从时间竞争干扰物中优先考虑目标，并且它们突出了非侵入性多变量电生理学在时间拥挤的环境中跟踪认知对感知的影响的潜力。
Anticipatory states help prioritise relevant perceptual targets over competing distractor stimuli and amplify early brain responses to these targets. Here we combine electroencephalography recordings in humans with multivariate stimulus decoding to address whether anticipation also increases the amount of target identity information contained in these responses, and to ask how targets are prioritised over distractors when these compete in time. We show that anticipatory cues not only boost visual target representations, but also delay the interference on these target representations caused by temporally adjacent distractor stimuli—possibly marking a protective window reserved for high-fidelity target processing. Enhanced target decoding and distractor resistance are further predicted by the attenuation of posterior 8–14 Hz alpha oscillations. These findings thus reveal multiple mechanisms by which anticipatory states help prioritise targets from temporally competing distractors, and they highlight the potential of non-invasive multivariate electrophysiology to track cognitive influences on perception in temporally crowded contexts.