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Mothers Talk about Infants' Actions: How Verbs Correspond to Infants' Real-Time Behavior
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West, Kelsey L.; Fletcher, Katelyn K.; Adolph, Karen E.; Tamis-LeMonda, Catherine S. – Developmental Psychology, 2022
Infants learn nouns during object-naming events--moments when caregivers name the object of infants' play (e.g., ball as infant holds a ball). Do caregivers also label the actions of infants' play (e.g., roll as infant rolls a ball)? We investigated connections between mothers' verb inputs and infants' actions. We video-recorded 32 infant-mother…
Descriptors: Mothers, Infants, Child Behavior, Verbs
Systems in Development: Motor Skill Acquisition Facilitates Three-Dimensional Object Completion
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Soska, Kasey C.; Adolph, Karen E.; Johnson, Scott P. – Developmental Psychology, 2010
How do infants learn to perceive the backs of objects that they see only from a limited viewpoint? Infants' 3-dimensional object completion abilities emerge in conjunction with developing motor skills--independent sitting and visual-manual exploration. Infants at 4.5 to 7.5 months of age (n = 28) were habituated to a limited-view object and tested…
Descriptors: Infants, Psychomotor Skills, Skill Development, Motor Development
Change in Action: How Infants Learn to Walk down Slopes
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Gill, Simone V.; Adolph, Karen E.; Vereijken, Beatrix – Developmental Science, 2009
A critical aspect of perception-action coupling is the ability to modify ongoing actions in accordance with variations in the environment. Infants' ability to modify their gait patterns to walk down shallow and steep slopes was examined at three nested time scales. Across sessions, a microgenetic training design showed rapid improvements after the…
Descriptors: Control Groups, Physical Activities, Infants, Psychomotor Skills
Learning in the Development of Infant Locomotion.
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Adolph, Karen E. – Monographs of the Society for Research in Child Development, 1997
Examined how infants acquire adaptive locomotion in the novel task of going up and down slopes. Found that infants' judgments became increasingly accurate and exploration became increasingly efficient, with no transfer over the transition from crawling to walking. Infants learned to gauge their abilities on-line as they encountered each hill at…
Descriptors: Child Development, Individual Development, Infant Behavior, Infants
Infants Use Handrails as Tools in a Locomotor Task.
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Berger, Sarah E.; Adolph, Karen E. – Developmental Psychology, 2003
Two experiments examined problem solving in 16-month-olds' adaptive locomotion (crossing bridges of varying width with/without handrail). Findings indicated that toddlers attempted wide bridges more than narrow ones. Attempts on narrow bridges depended on handrail presence. Toddlers had longer latencies, examined bridge/handrail more closely, and…
Descriptors: Comparative Analysis, Difficulty Level, Experiments, Infant Behavior
What Changes in Infant Walking and Why.
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Adolph, Karen E.; Vereijken, Beatrix; Shrout, Patrick E. – Child Development, 2003
Used kinematic measures to compare relative contributions of growing body dimensions, age, and walking experience in walking skill development in 9- to 17-month-olds, kindergartners, and college students. Found that with increased age, size, and experience, children's steps became longer, narrower, straighter, and more consistent, reflecting a…
Descriptors: Age Differences, Body Composition, Body Height, Body Weight