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Statistically defined visual chunks engage object-based attention
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DOI：10.1038/s41467-020-20589-z.png)
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Abstract
En 中文
Although objects are the fundamental units of our representation interpreting the environment around us, it is still not clear how we handle and organize the incoming sensory information to form object representations. By utilizing previously well-documented advantages of within-object over across-object information processing, here we test whether learning involuntarily consistent visual statistical properties of stimuli that are free of any traditional segmentation cues might be sufficient to create object-like behavioral effects. Using a visual statistical learning paradigm and measuring efficiency of 3-AFC search and object-based attention, we find that statistically defined and implicitly learned visual chunks bias observers' behavior in subsequent search tasks the same way as objects defined by visual boundaries do. These results suggest that learning consistent statistical contingencies based on the sensory input contributes to the emergence of object representations. The study reports that implicitly learned, statistically defined chunks of abstract visual shapes elicit similar object-based perceptual effects as images of true objects with visual boundaries do. This result links the emergence of object representations to implicit statistical learning mechanisms.
Keywords:
PERCEPTUAL ORGANIZATION
SELECTIVE ATTENTION
RECOGNITION
SEGREGATION
LOCATIONS
CONVEXITY
FEATURES
TESTS
PARTS
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