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How retaining objects containing multiple features in visual working memory regulates the priority for access to visual awareness
Consciousness and Cognition ( IF 2.728 ) Pub Date : 2020-12-08 , DOI: 10.1016/j.concog.2020.103057
Yun Ding 1 , Marnix Naber 1 , Chris Paffen 1 , Surya Gayet 2 , Stefan Van der Stigchel 1
Affiliation  

The content of visual working memory influences the access to visual awareness. Thus far, research has focused on retention of a single feature, whereas memoranda in real life typically contain multiple features. Here, we intermixed a delayed match-to-sample task to manipulate VWM content, and a breaking Continuous Flash Suppression (b-CFS) task to measure prioritization for visual awareness. Observers memorized either the color (Exp. 1), the shape (Exp. 2) or both the features (Exp. 3) of an item and indicated the location of a suppressed target. We observed that color-matching targets broke suppression faster than color-mismatching targets both when color was memory relevant or irrelevant. Shape only impacted priority for visual awareness through an interaction with color. We conclude that: (1) VWM can regulate the priority of visual information to access visual awareness along a single feature dimension; (2) different features of a memorandum vary in their potency to impact access to visual awareness, and the more dominant feature may even suppress the effect of the less dominant feature; (3) even stimuli that match an irrelevant feature dimension of the memorandum can be prioritized for visual awareness.



中文翻译:

在视觉工作记忆中保留包含多个特征的对象如何调节获得视觉意识的优先级

视觉工作记忆的内容影响视觉意识的获得。迄今为止,研究的重点是保留单个特征,而现实生活中的备忘录通常包含多个特征。在这里,我们混合了一个延迟匹配样本任务来操纵 VWM 内容,以及一个突破性的连续闪光抑制 (b-CFS) 任务来衡量视觉意识的优先级。观察者记住了项目的颜色(实验 1)、形状(实验 2)或两者的特征(实验 3),并指出了被抑制目标的位置。我们观察到,当颜色与记忆相关或不相关时,颜色匹配目标比颜色不匹配目标更快地破坏抑制。形状仅通过与颜色的交互影响视觉意识的优先级。我们得出结论:(1) VWM 可以调节视觉信息的优先级,以沿单一特征维度获取视觉感知;(2) 备忘录的不同特征对视觉感知的影响程度不同,较显着的特征甚至可能抑制较不显着的特征的影响;(3) 即使是与备忘录的无关特征维度相匹配的刺激,也可以优先考虑视觉感知。

更新日期:2020-12-23
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