Figural goodness, stimulus heterogeneity, similarity and object segregation in infancy
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Authors
Bhatt, Ramesh S.
Author (Corporation)
Publication date
21.12.2001
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Type
01A - Journal article
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Parent work
Developmental Science
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Volume
4
Issue / Number
4
Pages / Duration
423-432
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Publisher / Publishing institution
Wiley
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Abstract
The segregation of objects from other objects in visual arrays is a fundamental function of our visual system. Research suggests that adults’ detection of a target among nontargets is affected by the heterogeneity of array elements and the resulting changes in target–nontarget and nontarget–nontarget similarities. We examined the effects of heterogeneity and similarity on object segregation in infancy. In Experiment 1, 5.5-month-olds detected a misoriented element in an array when the array elements were spatially arranged in a ‘good’ configuration but not when they were arranged in a ‘poor’ configuration. In Experiment 2, infants detected a vertical line in a homogeneous array of 55° or 125° lines, but failed to do so in a heterogeneous array of 55° and 125° lines. Thus, heterogeneity in both the arrangement and identity of array elements affected infants’ discrepancy detection. Because the average target–nontarget similarity was the same in the two conditions of Experiment 2, the results also indicated that nontarget–nontarget similarity independently affects discrepancy detection in infancy. These results are consistent with models of object segregation by adults, and suggest that stimulus heterogeneity and similarity have analogous effects on object segregation at 5.5 months of age and in adulthood.
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ISBN
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1363-755X
1467-7687
1467-7687
Language
English
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No
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Publication status
Published
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Peer review of the complete publication
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Citation
Bertin, E., & Bhatt, R. S. (2001). Figural goodness, stimulus heterogeneity, similarity and object segregation in infancy. Developmental Science, 4(4), 423–432. https://doi.org/10.1111/1467-7687.00184