The object as the unit of interaction between visual working memory and visual attention

The current study aimed to answer a fundamental question regarding two central components of our cognitive system: what is the unit interaction between visual working memory (VWM) and attention. To address this crucial issue, we proposed opposing hypotheses: (a) Boolean map, which data format that can contain only one within-dimension feature (e.g., “red” or “circle”; Boolean-map-unit hypothesis); (b) an object (object-unit hypothesis). We tested these distinct hypotheses by adopting memory-driven attentional capture effect as well manipulating perceptual organization (objecthood) memorized color representations. In experiments, participants held colors in VWM from either objects, color, then performed search task sometimes contained singleton-distractor with memory-matching color. Experiment 1 assessed whether would be influenced objecthood multiple representations VWM. results showed could simultaneously guide attention when encoded integrated object, but did not they came separate objects. 2 replicated generalized different essentially similar physical formats (i.e., e.g., colored semicircles). More importantly, was equivalent single These suggested significantly influences their ability for guidance, thus supporting object-unit hypothesis. novel findings provided first evidence indicating implemented at level have implications understanding architecture