Perception of the Motion Trajectory of Objects from Moving Cast Shadows in Infant Japanese Macaques ("Macaca fuscata")

Autor/inn/en	Imura, Tomoko; Adachi, Ikuma; Hattori, Yuko; Tomonaga, Masaki
Titel	Perception of the Motion Trajectory of Objects from Moving Cast Shadows in Infant Japanese Macaques ("Macaca fuscata")
Quelle	In: Developmental Science, 16 (2013) 2, S.227-233 (7 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1363-755X
DOI	10.1111/desc.12020
Schlagwörter	Animals; Motion; Visual Discrimination; Spatial Ability; Familiarity; Novelty (Stimulus Dimension); Preferences; Individual Development; Foreign Countries; Japan + Suchen Sie Ihr Suchwort? Animal; Tier; Tiere; Bewegungsablauf; Räumliches Vorstellungsvermögen; Individuelle Entwicklung; Ausland
Abstract	The shadows cast by moving objects enable human adults and infants to infer the motion trajectories of objects. Nonhuman animals must also be able to discriminate between objects and their shadows and infer the spatial layout of objects from cast shadows. However, the evolutionary and comparative developmental origins of sensitivity to cast shadows have not been investigated. In this study, we used a familiarity/novelty preferential looking procedure to assess the ability of infant macaques, aged 7-24 weeks, to discriminate between a "depth" display containing a ball and cast shadow moving diagonally and an "up" display containing a ball with a diagonal trajectory and a shadow with a horizontal trajectory. The infant macaques could discriminate the trajectories of the balls based on the moving shadows. These findings suggest that the ability to perceive the motion trajectory of an object from the moving shadow is common to both humans and macaques. (Contains 2 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10