Wang Dan, Chota Samson, Xu Luzi, der Stigchel Stefan Van, Gayet Surya
Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, the Netherlands.
Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, the Netherlands.
Conscious Cogn. 2025 Jan;127:103800. doi: 10.1016/j.concog.2024.103800. Epub 2024 Dec 19.
Items held in visual working memory (VWM) influence early visual processing by enhancing memory-matching visual input. Depending on current task demands, memory items can have different priority states. Here, we investigated how the priority state of items in VWM affects two key aspects of early visual processing: access to visual awareness and attention allocation. We used three perceptual tasks: the breaking continuous flash suppression task (Experiment 1), the attentional capture task (Experiment 2), and a visual search task (Experiment 3). We found that stimuli matching prioritized VWM items yielded a large perceptual advantage over stimuli matching non-prioritized VWM items (despite minimal memory loss). Additionally, stimuli matching non-prioritized memory items exhibited a (small but consistent) perceptual advantage over VWM-unrelated stimuli. Taken together, observers can flexibly de-prioritize and re-prioritize VWM contents based on current task demands, allowing observers to exert control over the extent to which VWM contents influence concurrent visual processing.
视觉工作记忆(VWM)中保存的项目通过增强与记忆匹配的视觉输入来影响早期视觉处理。根据当前的任务需求,记忆项目可以具有不同的优先级状态。在这里,我们研究了VWM中项目的优先级状态如何影响早期视觉处理的两个关键方面:进入视觉意识和注意力分配。我们使用了三个感知任务:打破连续闪光抑制任务(实验1)、注意力捕获任务(实验2)和视觉搜索任务(实验3)。我们发现,与优先化的VWM项目匹配的刺激比与非优先化的VWM项目匹配的刺激产生了更大的感知优势(尽管记忆损失最小)。此外,与非优先化记忆项目匹配的刺激比与VWM无关的刺激表现出(虽小但一致)的感知优势。综上所述,观察者可以根据当前任务需求灵活地降低和重新提高VWM内容的优先级,从而使观察者能够控制VWM内容对同时进行的视觉处理的影响程度。