Document Detail


Motor Origins of Tool Use.
MedLine Citation:
PMID:  23106197     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The current study examines the developmental trajectory of banging movements and its implications for tool use development. Twenty (6- to 15-month-old) infants wore reflective markers while banging a handled cube; movements were recorded at 240 Hz. Results indicated that through the second half-year, banging movements undergo developmental changes making them ideally suited for instrumental hammering and pounding. Younger infants were inefficient and variable when banging the object: Their hands followed circuitous paths of great lengths at high velocities. By 1 year, infants showed consistent and efficient straight up-down hand trajectories of smaller magnitude and velocity, allowing for precise aiming and delivering dependable levels of force. The findings suggest that tool use develops gradually from infants' existing manual behaviors.
Authors:
Björn A Kahrs; Wendy P Jung; Jeffrey J Lockman
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-25
Journal Detail:
Title:  Child development     Volume:  -     ISSN:  1467-8624     ISO Abbreviation:  Child Dev     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372725     Medline TA:  Child Dev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors. Child Development © 2012 Society for Research in Child Development, Inc.
Affiliation:
Tulane University.
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