Vision for Perception and Vision for Action: Normal and Unusual Development

Autor/inn/en	Dilks, Daniel D.; Hoffman, James E.; Landau, Barbara
Titel	Vision for Perception and Vision for Action: Normal and Unusual Development
Quelle	In: Developmental Science, 11 (2008) 4, S.474-486 (13 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1363-755X
DOI	10.1111/j.1467-7687.2008.00693.x
Schlagwörter	Vision; Cognitive Processes; Child Development; Developmental Stages; Neurological Organization; Neurological Impairments; Genetic Disorders; Visual Perception; Age Differences; Young Children; Perceptual Development + Suchen Sie Ihr Suchwort? Cognitive process; Kognitiver Prozess; Kindesentwicklung; Neurodegenerative Erkrankung; Visuelle Wahrnehmung; Age; Difference; Age difference; Altersunterschied; Frühe Kindheit; Wahrnehmungsentwicklung
Abstract	Evidence suggests that visual processing is divided into the dorsal ("how") and ventral ("what") streams. We examined the normal development of these streams and their breakdown under neurological deficit by comparing performance of normally developing children and Williams syndrome individuals on two tasks: a visually guided action ("how") task, in which participants posted a card into an oriented slot, and a perception ("what") task, in which they matched a card to the slot's orientation. Results showed that all groups performed worse on the action task than the perception task, but the disparity was more pronounced in WS individuals and in normal 3-4-year-olds than in older children. These findings suggest that the "how" system may be relatively slow to develop and more vulnerable to breakdown than the "what" system. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10