4 Walking

Previous experience supporng their own weight during

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Unformatted text preview: warm water, reducing the strength needed to liU them Stepping behavior re- emerged - - - - - - - - - - - - - - RESULT 2: Reflex disappears when weights a:ached to legs (to match weight of lost fat) From stepping to walking Stepping does not involve systema=c alterna=on of legs • In 7- month- olds, only 50% of movements alternate like adults RESULT 3: 85% alternated when babies were placed on a treadmill, despite no previous experience suppor=ng their own weight during upright locomo=on The capacity emerges before it can be used behaviorally! Ques=on: does this demonstrate an innate ability to walk? What is the baby s=ll missing? What else needs to change? Other ways experience ma:ers •  Mothers in Mali believe it is important to exercise their infants to promote their physical and motor development •  The maneuvers shown here do not harm the babies and hav...
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