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Sirois, Sylvain; Jackson, Iain R. – Infancy, 2012
This paper examines the relative merits of looking time and pupil diameter measures in the study of early cognitive abilities of infants. Ten-month-old infants took part in a modified version of the classic drawbridge experiment used to study object permanence (Baillargeon, Spelke, & Wasserman, 1985). The study involved a factorial design where…
Descriptors: Object Permanence, Infants, Cognitive Ability, Eye Movements
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Slaughter, Virginia; Peterson, Candida C.; Carpenter, Malinda – Infancy, 2008
Twenty-four infants were tested monthly for gaze and point following between 9 and 15 months of age and mother-infant free play sessions were also conducted at 9, 12, and 15 months (Carpenter, Nagell, & Tomasello, 1998). Using this data set, this study explored relations between maternal talk about mental states during mothers' free play with…
Descriptors: Mothers, Speech, Infants, Eye Movements
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Johnson, Scott P.; Slemmer, Jonathan A.; Amso, Dima – Infancy, 2004
A fundamental question of perceptual development concerns how infants come to perceive partly hidden objects as unified across a spatial gap imposed by an occluder. Much is known about the time course of development of perceptual completion during the first several months after birth, as well as some of the visual information that supports unity…
Descriptors: Object Permanence, Eye Movements, Infants, Human Body