Document Detail

Infants' perception of affordances of slopes under high- and low-friction conditions.
MedLine Citation:
PMID:  20695700     Owner:  NLM     Status:  MEDLINE    
Three experiments investigated whether 14- and 15-month-old infants use information for both friction and slant for prospective control of locomotion down slopes. In Experiment 1, high- and low-friction conditions were interleaved on a range of shallow and steep slopes. In Experiment 2, friction conditions were blocked. In Experiment 3, the low-friction surface was visually distinct from the surrounding high-friction surface. In all three experiments, infants could walk down steeper slopes in the high-friction condition than they could in the low-friction condition. Infants detected affordances for walking down slopes in the high-friction condition, but in the low-friction condition, they attempted impossibly slippery slopes and fell repeatedly. In both friction conditions, when infants paused to explore slopes, they were less likely to attempt slopes beyond their ability. Exploration was elicited by visual information for slant (Experiments 1 and 2) or by a visually distinct surface that marked the change in friction (Experiment 3).
Karen E Adolph; Amy S Joh; Marion A Eppler
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural    
Journal Detail:
Title:  Journal of experimental psychology. Human perception and performance     Volume:  36     ISSN:  1939-1277     ISO Abbreviation:  J Exp Psychol Hum Percept Perform     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-08-10     Completed Date:  2010-12-20     Revised Date:  2014-09-22    
Medline Journal Info:
Nlm Unique ID:  7502589     Medline TA:  J Exp Psychol Hum Percept Perform     Country:  United States    
Other Details:
Languages:  eng     Pagination:  797-811     Citation Subset:  IM    
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MeSH Terms
Child Psychology*
Concept Formation*
Decision Making
Exploratory Behavior
Postural Balance
Surface Properties
Visual Perception*
Grant Support
R37 HD033486/HD/NICHD NIH HHS; R37-33486//PHS HHS

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

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