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Published on: June 1, 2015
Walking-Related Changes in Infants' Daily Experiences of Postural Transitions: A Longitudinal Assessment
Yushan Guo1, Maximilian Tang1, John Franchak1
1University of California, Riverside, California, USA.
Insights
Infants’ daily postural transitions, or changing positions, decrease with more walking experience. Mobile infants increasingly use transitions involving upright postures for exploration.
Area of Science:
- Developmental Psychology
- Motor Development
- Infant Behavior
Background:
- Postural transitions are crucial for infant perceptual-motor exploration.
- Previous research on infant postural transitions is limited to controlled lab settings.
- Daily-life frequency and types of transitions remain largely unstudied.
Purpose of the Study:
- To assess the frequency and types of postural transitions in infants' natural environments.
- To investigate how walking experience influences these daily transitions.
Main Methods:
- Utilized a novel video-based ecological momentary assessment (vEMA) for longitudinal data collection.
- Collected 3210 video observations from 44 infants across the US at 11 and 13 months.
- Analyzed video data to identify and categorize postural transitions based on walking experience.
Main Results:
- The frequency of postural transitions decreased as infants gained more walking experience.
- Infants with greater walking experience showed increased engagement in transitions involving upright postures.
- Significant differences in transition frequency and type were observed relative to walking ability.
Conclusions:
- Infant walking experience significantly shapes their daily postural transition behaviors.
- Daily life reveals different patterns of postural transitions compared to laboratory settings.
- Understanding these transitions provides insights into motor development and environmental exploration.
Abstract:
Postural transitions occur when infants switch from one posture to another, such as from prone to sitting. Postural transitions facilitate perceptual-motor exploration because different postures afford unique learning opportunities. However, extant studies on postural transitions are limited to laboratory play sessions, so it is unknown how frequently transitions occur in daily life. In the present study, we assessed infants' daily experiences with postural transitions. In particular, we tested whether the frequency of transitions and the type of transitions change with infants' increasing walking experience. We developed a novel video-based ecological momentary assessment (vEMA) to longitudinally collect videos of infants' activities throughout the day in their home environment at 11 and 13 months of age. We identified postural transitions in the resulting 3210 video observations collected from N = 44 infants across the United States, which revealed that the frequency and type of transitions differed according to walking experience. The frequency of postural transitions decreased with accumulated walking experience. Infants with greater walking experience more frequently engaged in transitions involving upright postures in their daily lives.
