Document Detail


The role of locomotor posture and experience on handedness and footedness in infancy.
MedLine Citation:
PMID:  21684008     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This research examined the development of handedness and footedness in infancy. We measured footedness by documenting the limb infants used to "lead-out" as they crawled or walked down a path several times. We measured handedness by documenting the hand infants used to reach for a goal at the end of each trial. Study 1 showed that locomotor skill affects limb lateralization preferences and that most 13-month-old infants demonstrated a side preference for reaching and leading out "in the moment." Study 2 longitudinally examined the developmental trajectories of handedness and footedness as they related to locomotor posture and experience. The findings suggest high variability in the developmental trajectory of footedness, with frequent fluctuation between side preferences. The developmental trajectory of handedness was more stable over the transition between locomotor milestones. The transition between crawling and walking decreased the proportion of infants demonstrating side preferences for leading out and the onset of walking decreased the proportion of infants demonstrating side preferences for reaching. These findings demonstrate the importance of making behavioral observations at multiple time scales to understand underlying developmental trajectories, specifically the stability or instability of the motor system associated with the acquisition of new motor abilities.
Authors:
Sarah E Berger; Remy Friedman; Marierose C Polis
Related Documents :
12483628 - Congenital diaphragmatic hernia and hydrops: a lethal association?
21340728 - Bacterial profile of the oropharynx in infants: an assessment of the confounding factor...
16042738 - Inguinal hernia in female infants: a cue to check the sex chromosomes?
2840828 - Expanding the spectrum of the perlman syndrome.
10098268 - Consistent responses of human mothers to prelinguistic infants: the effect of prelingui...
21327138 - Pattern of death in a nigerian teaching hospital; 3-decade analysis.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-16
Journal Detail:
Title:  Infant behavior & development     Volume:  -     ISSN:  1934-8800     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7806016     Medline TA:  Infant Behav Dev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Affiliation:
The College of Staten Island and the Graduate Center, City University of New York, United States.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Partitioning of polar and non-polar neutral organic chemicals into human and cow milk.
Next Document:  The public health impact of antidepressants: An instrumental variable analysis.