Document Detail

Contingency learning in 9-month-old infants with Down syndrome.
MedLine Citation:
PMID:  7946255     Owner:  NLM     Status:  MEDLINE    
The ability of ten 9-month-old infants with Down syndrome to acquire a contingency in which arm movements were reinforced with auditory and visual stimulation was assessed. Unlike a group of infants without identifiable disabilities, those with Down syndrome did not learn the contingency. Examination of the performance of individual infants with Down syndrome indicated that some infants did master the contingency. In addition, there was a relation between contingency performance and scores on the Mental Development Index of the Bayley Scales of Infant Development. Results were discussed in terms of the possibility that some infants with Down syndrome experience a decline in conditionability with age and the relation between conditionability and mental development.
P S Ohr; J W Fagen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of mental retardation : AJMR     Volume:  99     ISSN:  0895-8017     ISO Abbreviation:  Am J Ment Retard     Publication Date:  1994 Jul 
Date Detail:
Created Date:  1994-11-28     Completed Date:  1994-11-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8800463     Medline TA:  Am J Ment Retard     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  74-84     Citation Subset:  IM    
Department of Psychology, Hofstra University, Hempstead, NY 11550.
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MeSH Terms
Association Learning*
Concept Formation
Conditioning, Operant*
Down Syndrome / psychology*
Mental Recall
Psychomotor Performance
Reinforcement (Psychology)

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