2019
DOI: 10.1080/13506285.2019.1680587
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Object-based attention shifts are driven by target location, not object placement

Abstract: Object-based attention (OBA) enhances processing within an attended object. We previously found that attention shifts that crossed the visual field meridians were faster horizontally than vertically, which we named a Shift Direction Anisotropy (SDA). We aimed to determine whether the SDA depends upon attention shift meridian crossings of object boundaries, target locations, or both. Participants viewed an 'L'-shaped object and responded to a target at the cued vertex location (valid) or at non-cued object loca… Show more

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Cited by 5 publications
(3 citation statements)
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References 75 publications
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“…That is, for horizontal rectangles, attention on the invalid-same object trials was allocated along the horizontal meridian of the visual field, whereas on invaliddifferent object trials attention was allocated along the vertical meridian. The hypothesis that information processing is facilitated along the horizontal meridian is consistent with the results of studies of visual search (Carrasco & Chang, 1995;Mackeben, 1999) and object-based attention (Al-Janabi & Greenberg;Barnas & Greenberg, 2016;2019).…”
Section: Discussionsupporting
confidence: 84%
“…That is, for horizontal rectangles, attention on the invalid-same object trials was allocated along the horizontal meridian of the visual field, whereas on invaliddifferent object trials attention was allocated along the vertical meridian. The hypothesis that information processing is facilitated along the horizontal meridian is consistent with the results of studies of visual search (Carrasco & Chang, 1995;Mackeben, 1999) and object-based attention (Al-Janabi & Greenberg;Barnas & Greenberg, 2016;2019).…”
Section: Discussionsupporting
confidence: 84%
“…First, the objectspecific effect varies with the distance between the rectangles, indicating that it is not spatially invariant (Vecera, 1994). Second, the pattern of effects varies with the orientation of the rectangles (horizontal vs. vertical) and whether an object crosses over one of the meridians (horizontal or vertical) of the visual field (Al-Janabi & Greenberg, 2016; Barnas & Greenberg, 2019;Hein, Blaschke, & Rolke, 2017;Pilz, Roggeveen, Creighton, Bennett, & Sekuler, 2012). A recent extensive examination of these spatial dependencies by Chen and Cave (2019) suggests that object-specific effects in the two-rectangles paradigm are caused by object structure modifying existing biases of how spatial selection mechanisms are prioritized, rather than object-based attention that is distinct from space-based attention.…”
Section: Introductionmentioning
confidence: 99%
“…It has been suggested that OBA effects depend, at least partially, on whether the attentional spreading crossed interhemispheric or intrahemispheric boundaries (e.g., Barnas & Greenberg, 2019). This might raise questions regarding the decision to use only vertical rectangles in the current study.…”
Section: Discussionmentioning
confidence: 99%