Ensemble Perception of Size in 4-5-Year-Old Children

Autor/inn/en	Sweeny, Timothy D.; Wurnitsch, Nicole; Gopnik, Alison; Whitney, David
Titel	Ensemble Perception of Size in 4-5-Year-Old Children
Quelle	In: Developmental Science, 18 (2015) 4, S.556-568 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1363-755X
DOI	10.1111/desc.12239
Schlagwörter	Young Children; Cognitive Processes; Food; Mathematical Concepts; Visual Perception; Perceptual Development + Suchen Sie Ihr Suchwort? Frühe Kindheit; Cognitive process; Kognitiver Prozess; Lebensmittel; Visuelle Wahrnehmung; Wahrnehmungsentwicklung
Abstract	Groups of objects are nearly everywhere we look. Adults can perceive and understand the "gist" of multiple objects at once, engaging ensemble-coding mechanisms that summarize a group's overall appearance. Are these group-perception mechanisms in place early in childhood? Here, we provide the first evidence that 4-5-year-old children use ensemble coding to perceive the average size of a group of objects. Children viewed a pair of trees, with each containing a group of differently sized oranges. We found that, in order to determine which tree had the larger oranges overall, children integrated the sizes of multiple oranges into ensemble representations. This pooling occurred rapidly, and it occurred despite conflicting information from numerosity, continuous extent, density, and contrast. An ideal observer analysis showed that although children's integration mechanisms are sensitive, they are not yet as efficient as adults'. Overall, our results provide a new insight into the way children see and understand the environment, and they illustrate the fundamental nature of ensemble coding in visual perception. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01