Effects of support surface and optic flow on step-like movements in pre-crawling and crawling infants

Infant Behavior & Development
David I AndersonMarianne Barbu-Roth

Abstract

Step-like movements were examined in pre-crawling (n=9) and crawling (n=9) 6-13 month-old infants in the air and on a surface in response to a static pattern or optic flows that moved toward or away from the infant. Infants completed six 60-s trials. A significant interaction between locomotor status and support condition revealed that pre-crawling infants made more step-like movements in the air than on a rigid surface. In contrast, crawling infants made an equivalent number of step-like movements in the air and on the surface. Optic flow did not influence the number of step-like movements made by infants. The pre-crawling infant finding is consistent with a finding in a previous study in which two month-old infants were shown to step more in the air than on the ground. This finding is discussed relative to the idea that the infant stepping pattern disappears because the legs become too heavy to lift.

References

Dec 1, 1982·Early Human Development·J I de VriesH F Prechtl
Jul 31, 2003·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·V Dietz
Jan 31, 2006·Human Movement Science·Laure LejeuneMarianne Barbu-Roth
Feb 25, 2009·Child Development·Marianne Barbu-RothJoseph J Campos
Jan 27, 2011·Pediatric Physical Therapy : the Official Publication of the Section on Pediatrics of the American Physical Therapy Association·Annette PantallBeverly D Ulrich
Apr 11, 2012·Developmental Psychobiology·Hanna-Sophie Krüger, Ileana L Hanganu-Opatz
Sep 15, 2012·Developmental Psychobiology·Michael Kavšek
Dec 18, 2013·Child Development·Kari S KretchKaren E Adolph
Oct 9, 2014·Child Development·Marianne Barbu-RothJoëlle Provasi

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Citations

Sep 26, 2020·Frontiers in Bioengineering and Biotechnology·Germana CappelliniYury Ivanenko
Jun 1, 2021·Frontiers in Psychology·Marianne Barbu-RothCaroline Teulier

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