On the timing of overt attention deployment: Eye-movement evidence for the priority accumulation framework.

Most visual-search theories assume that our attention is automatically allocated to the location with the highest priority at any given moment. The Priority Accumulation Framework (PAF) challenges this assumption. It suggests that the priority weight at each location accumulates across sequential events and that evidence for the presence of action-relevant information contributes to determining when attention is deployed to the location with the highest accumulated priority. Here, we tested these hypotheses for overt attention by recording first saccades in a free-viewing spatial-cueing task. We manipulated search difficulty (Experiments 1 and 2) and cue salience (Experiment 2). Standard theories posit that when oculomotor capture by the cue occurs, it is initiated before the search display appears; therefore, these theories predict that the cue's impact on the distribution of first saccades should be independent of search difficulty but influenced by the cue's saliency. By contrast, PAF posits that the cue can bias competition later, after processing of the search display has already started, and therefore predicts that such late impact should increase with both search difficulty and cue salience. The results fully supported PAF's predictions. Our account suggests a distinction between attentional capture and attentional-priority bias that resolves enduring inconsistencies in the attentional-capture literature. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The go no-go reviewing paradigm: A reliable method for measuring perceptual object-file updating.

The object-file framework explains how object continuity is maintained as objects move: it stipulates that when we focus our attention on an object, we automatically retrieve this object's recent history. Supporting evidence comes from the object-specific preview benefit (OSPB): participants are faster to name a target letter when the same letter appeared in the same versus a different object in a preceding (preview) display. Although this framework has been very influential, replicating the OSPB has proved difficult, presumably because observers could ignore the preview display. To address this problem, a modified object-reviewing paradigm was suggested, which became the standard paradigm: participants are required to report whether the target letter matches one of the preview display's letters. However, as this paradigm makes retrieval of the object's history task-relevant, it is a useful method for studying the structure of object representations for memory but does not capture the automaticity of the object-reviewing process, which is the heart of the object-file account of perception. Here, we suggest an alternative go/no-go object-reviewing paradigm that is specifically tailored to study object-files for perception: it requires participants to attend to the preview display, yet does not require explicit retrieval of the object history. Using our new paradigm, we reliably replicate the OSPB. As a proof of concept, we revisit the persistence of the OSPB, previously investigated with the modified paradigm.