Document Detail

Socioeconomic status affects oral and manual exploration across the first year.
MedLine Citation:
PMID:  25424407     Owner:  NLM     Status:  In-Data-Review    
Oral and manual exploration are part of the foundation of problem solving and cognition in infancy. How these develop in an at-risk population, infants in poverty, is unknown. The current study tested exploratory behaviors longitudinally at 6, 9, and 12 months in infants from high- and low-socioeconomic (SES) families. Oral exploration consisted of passive and active mouthing and looks after active mouthing. Manual exploration consisted of frequency of fingering, rotating, and transferring the object. High-SES infants replicated the trajectory previously reported in the literature, showing a decrease in mouthing and fingering and an increase in rotating and transferring (e.g., Palmer, ). In contrast, low-SES infants showed no change in any of the manual exploratory behaviors over the first year, thus demonstrating reduced overall levels of exploration as well as a different developmental trajectory. Results are discussed in terms of attention, potential physiological mechanisms, and implications for later problem solving.
Melissa W Clearfield; Lillian S Bailey; Helen K Jenne; Sarah B Stanger; Nicholas Tacke
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Publication Detail:
Type:  Journal Article     Date:  2013-11-04
Journal Detail:
Title:  Infant mental health journal     Volume:  35     ISSN:  1097-0355     ISO Abbreviation:  Infant Ment Health J     Publication Date:  2014 Jan 
Date Detail:
Created Date:  2014-11-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8007859     Medline TA:  Infant Ment Health J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  63-9     Citation Subset:  IM    
Copyright Information:
© 2013 Michigan Association for Infant Mental Health.
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