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date: 23 February 2019

Abstract and Keywords

Location plays a fundamental role in visual attention. Experiments using spatial cuing, spatial probes, flanker interference, and other methods show that visual information is often selected by its location. This spatial attention can take the form of a gradient, with facilitation that weakens with distance from the center. Although attention is easily allocated to a cued location, it can also be driven effectively by features such as motion, color, and orientation, and this feature-driven selection is accomplished at least in part by selecting locations with those features. Attention is flexible and often seems to be allocated to objects, as demonstrated in experiments with overlapping objects. Attention to one part of an object can increase attention to other parts of the same object, even though the object organization is irrelevant to the task. More experiments, including neuroscience studies, are necessary to determine the relationships between location-based, feature-based, and object-based attention.

Keywords: location, selection, cuing, flanker, feature, object, split, gradient

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