Motion and Edge Sensitivity in Perception of Object Unity

Autor/inn/en	Smith, W. Carter; Johnson, Scott P.; Spelke, Elizabeth S.
Titel	Motion and Edge Sensitivity in Perception of Object Unity
Quelle	In: Cognitive Psychology, 46 (2003) 1, S.31-64 (34 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0010-0285
DOI	10.1016/S0010-0285(02)00501-7
Schlagwörter	Intervals; Infants; Motion; Experiments; Adults; Depth Perception; Visual Stimuli; Spatial Ability; Child Development; Cognitive Psychology + Suchen Sie Ihr Suchwort? Infant; Toddler; Toddlers; Kleinkind; Bewegungsablauf; Erprobung; Depth psychology; Tiefenpsychologie; Räumliches Vorstellungsvermögen; Kindesentwicklung; Kognitive Psychologie
Abstract	Although much evidence indicates that young infants perceive unitary objects by analyzing patterns of motion, infants' abilities to perceive object unity by analyzing Gestalt properties and by integrating distinct views of an object over time are in dispute. To address these controversies, four experiments investigated adults' and infants' perception of the unity of a center-occluded, moving rod with misaligned visible edges. Both alignment information and depth information affected adults' and infants' perception of object unity in similar ways, and infants perceived object unity by integrating information about object features over time. However, infants perceived a moving, misaligned, three-dimensional object as indeterminate in its connectedness, whereas adults perceived it as connected behind the occluder. These findings indicate that the effectiveness of common motion in specifying unified surfaces across an occluder is reduced by misalignment of edges. Alignment information enhances perception of object unity either by serving directly as information for unity or by optimizing the detectability of motion-carried information for unity. In addition, young infants are able to retain information about edge orientation over short intervals in determining connectedness via a process of spatiotemporal integration. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10