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Color diversity judgments in peripheral vision: Evidence against "cost-free" representations.


ABSTRACT: Is visual perception "rich" or "sparse?" One finding supporting the "rich" hypothesis shows that a specific visual summary representation, color diversity, is represented "cost-free" outside focally-attended regions in dual-task paradigms [1]. Here, we investigated whether this "cost-free" phenomenon for color diversity perception extends to peripheral vision. After replicating previous findings and verifying that color diversity is represented "cost-free" in central vision, we performed two experiments: in our first experiment, we extended the paradigm to peripheral vision and found that in minimally-attended regions of space, color diversity perception was impaired. In a second and final experiment, we added confidence judgments to our task, and found that participants maintained high levels of metacognitive awareness of impaired performance in minimally-attended visual areas in the periphery. These findings provide evidence that color perception may be partially attention-dependent in peripheral vision, and challenge previous views on both sides of the rich vs. sparse debate.

SUBMITTER: Hawkins B 

PROVIDER: S-EPMC9803108 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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Color diversity judgments in peripheral vision: Evidence against "cost-free" representations.

Hawkins Brylee B   Evans Dee D   Preston Anya A   Westmoreland Kendra K   Mims Callie E CE   Lolo Kiara K   Rosario Nicholas N   Odegaard Brian B  

PloS one 20221230 12


Is visual perception "rich" or "sparse?" One finding supporting the "rich" hypothesis shows that a specific visual summary representation, color diversity, is represented "cost-free" outside focally-attended regions in dual-task paradigms [1]. Here, we investigated whether this "cost-free" phenomenon for color diversity perception extends to peripheral vision. After replicating previous findings and verifying that color diversity is represented "cost-free" in central vision, we performed two exp  ...[more]

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