関連する実験動画

Updated: Oct 9, 2026

Quantifying Learning in Young Infants: Tracking Leg Actions During a Discovery-learning Task
11:18

Quantifying Learning in Young Infants: Tracking Leg Actions During a Discovery-learning Task

Published on: June 1, 2015

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歩行に関連した赤ちゃんの姿勢の変化の日常経験の変化: 縦断的な評価

Yushan Guo1, Maximilian Tang1, John Franchak1

  • 1University of California, Riverside, California, USA.

Infancy : the official journal of the International Society on Infant Studies
|February 13, 2026
PubMed
まとめ

乳児の毎日の姿勢の移行,または姿勢の変更は,歩行経験が増えるにつれて減少します. 移動性のある赤ちゃんは,探索のために,直立した姿勢を含む移行をますます使用しています.

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関連する概念動画

Principles of Development01:31

Principles of Development

Physical development during the prenatal period and early childhood follows two major directional principles: cephalocaudal and proximodistal development. These general patterns happen simultaneously and help explain changes in body proportions and the gradual development of motor skills.Cephalocaudal DevelopmentThe cephalocaudal principle describes development from the head downward toward the lower body. During prenatal development, the head and brain structures develop rapidly before many...
Physical Growth During Infancy and Toddlerhood01:18

Physical Growth During Infancy and Toddlerhood

Physical growth is especially rapid during the first three years of life, with the greatest rate in the first few months after birth. Although children continue to gain height and weight throughout infancy and toddlerhood, the rate of growth gradually slows during the second and third years. At most ages, boys are typically slightly taller and heavier than girls, reflecting a common pattern of early physical development.Changes in Body ProportionsAs infants become toddlers, their body...
Vision During Infancy and Toddlerhood01:23

Vision During Infancy and Toddlerhood

At birth, vision is the least developed of the major senses because the visual system is still structurally and neurologically immature. The retinas, optic nerves, and visual regions of the brain continue to mature after birth. As a result, newborns have limited visual acuity, or sharpness and clarity of vision, and respond best to objects viewed at close range, roughly 8 to 12 inches away.Rapid Visual DevelopmentVision improves rapidly during the first few months as infants observe and...
Development of Head Control During Infancy01:05

Development of Head Control During Infancy

The control of head posture and movement is an important early milestone in motor development. During the first four months of life, infants gradually learn to stabilize and move their heads against gravity. Head control depends on the gradual strengthening and coordination of the neck, shoulder, and upper trunk muscles.Early Head MovementsAt birth, infants have limited control over their heads because their neck muscles are still weak. While lying on their backs, newborns can usually turn...
Hand Control During Infancy and Toddlerhood01:31

Hand Control During Infancy and Toddlerhood

Hand movements during infancy and toddlerhood develop from broad, relatively uncontrolled actions into increasingly precise fine motor skills. This progression depends on nervous system maturation, improved muscle control, and repeated interaction with objects. Early reflexive movements gradually give way to intentional reaching, grasping, object manipulation, and tool use.Early Grasping SkillsNewborns show a strong palmar grasp reflex, automatically closing their fingers when the palm is...
Locomotion During Infancy and Toddlerhood01:29

Locomotion During Infancy and Toddlerhood

Children develop a wide range of gross motor skills during the first three years, as increasing muscle strength, balance, coordination, and nervous system maturation allow greater control over body movements. Development generally progresses from basic postural control to independent movement and later to activities such as jumping, climbing, and pedaling.Motor Development During the First YearMost infants begin rolling during the first several months, although the timing and direction can vary.