Document Detail

Object retrieval in the 1st year of life: learning effects of task exposure and box transparency.
MedLine Citation:
PMID:  14700464     Owner:  NLM     Status:  MEDLINE    
Before 12 months of age, infants have difficulties coordinating and sequencing their movements to retrieve an object concealed in a box. This study examined (a) whether young infants can discover effective retrieval solutions and consolidate movement coordination earlier if exposed regularly to such a task and (b) whether different environments, indexed by box transparency, would impact the rate of learning and time of discovery of these solutions. Infants (N=12) were presented with an object retrieval task every week from 6 1/2 months of age until they were able to retrieve the toy from the box using coordinated two-handed patterns for 3 weeks. To reach that criterion, infants tested with an opaque box took 2 1/2 months and infants tested with a semitransparent box took 1 1/2 months. Both groups outperformed age-matched controls who received a one-time exposure to the task. Repeated exposure to the task and vision of the toy significantly enhanced this process of solution discovery.
Kathryn E Bojczyk; Daniela Corbetta
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Developmental psychology     Volume:  40     ISSN:  0012-1649     ISO Abbreviation:  Dev Psychol     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2003-12-31     Completed Date:  2004-07-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0260564     Medline TA:  Dev Psychol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  54-66     Citation Subset:  IM    
Copyright Information:
(c) 2003 APA
Department of Child Development & Family Studies, Purdue University, West Lafayette, IN 47907, USA.
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MeSH Terms
Child Psychology*
Form Perception*
Functional Laterality
Longitudinal Studies
Mental Recall*
Motor Skills
Practice (Psychology)*
Problem Solving
Psychomotor Performance*
Size Perception

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