Task-induced pupil response and visual perception in adults
Task-induced pupil response and visual perception in adults
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DOI：
10.1371/journal.pone.0209556
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发表时间：
2018-12-26
期刊：
影响因子：
3.7
通讯作者：
Troiani, Vanessa
中科院分区：
文献类型：
--
作者：
DiCriscio, Antoinette Sabatino;Hu, Yirui;Troiani, Vanessa
我们评估了健康成年人在选择刺激阵列的局部部分和整体部分时瞳孔反应是否存在差异。我们设计了一个 Navon 人物眼球追踪范例（即由小人物组成的大人物），要求个人仅改变图像中关注的信息。我们发现，参与者在选择相对于全局信息的局部信息时，瞳孔波形有一个特征性的收缩。由于刺激和照明条件在不同条件下都是相同的，这表明瞳孔变化可能在对注意力选择很重要的视觉过滤机制中发挥作用。这项工作代表了选择性注意背景下瞳孔反应的第一个特征，表明视觉过程最早阶段的机制可能与感知和视觉选择相关。
We assessed whether there are differences in pupil response that underlie the selection of local vs. global parts of a stimulus array in healthy adults. We designed a Navon Figures eyetracking paradigm (i.e. large figure composed of small figures), requiring an individual to vary only the information attended to within an image. We found that participants have a characteristic constriction of the pupil waveform during selection of local information relative to global information. Because stimuli and lighting conditions were identical across conditions, this indicates that pupil changes may serve in a visual filtering mechanism important for attentional selection. This work represents the first characterization of pupil response in the context of selective attention, suggesting that mechanisms underlying the earliest stages of visual processes could be relevant for perception and visual selection.