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The extraction of natural scene gist in visual crowding.

Abstract：

:The gist of natural scenes can be extracted very rapidly and even without focal attention. However, it is unclear whether and to what extent the gist of natural scenes can break through the bottleneck of crowding, a phenomenon in which object recognition will be immensely impaired. In the first two experiments, a target scene, either presented alone or surrounded by four flankers, was categorized at basic (Experiment 1) or global levels (Experiment 2). It was showed that the elimination of high-level semantic information of flankers greatly alleviated the crowding effect, demonstrating that high-level information played an important role in crowding of scene gist. More importantly, participants were able to categorize the scenes in crowding at rather high accuracies, suggesting that the extraction of scene gist might be a prioritized process. To test this hypothesis, in Experiment 3 we compared the crowding effect of three types of stimuli, namely, scenes, facial expressions and letter "E"s. The results showed that scenes could be better categorized than the other two types of stimuli in the crowding condition. This scene gist advantage thus supported our hypothesis. Together, the present studies suggest that scene gist is highly recognizable in crowding, probably due to its prioritization in visual processing.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Gong M,Xuan Y,Smart LJ,Olzak LA

doi

10.1038/s41598-018-32455-6

subject

Has Abstract

pub_date

2018-09-19 00:00:00

pages

14073

issue

1

issn

2045-2322

pii

10.1038/s41598-018-32455-6

journal_volume

8

pub_type

杂志文章

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