Document Detail

Electroretinographic assessment of background adaptation in 10-week-old human infants.
MedLine Citation:
PMID:  1949619     Owner:  NLM     Status:  MEDLINE    
Full field, scotopic b-wave stimulus/response functions of 10-week-old infants and adults were measured in the dark-adapted condition, and in the presence of steady backgrounds. Dark adapted b-wave sensitivity (log sigma) differed significantly between infants and adults; the median dark adapted sensitivity of infants was 0.50 log unit less than that of adults. The median eigengraus of infants (-1.32 log scot. td) and adults (-1.55 log scot. td) did not differ significantly. The median slope of the linear portion of the background adaptation function was about 0.9 for infants and adults. These results argue for post-receptoral immaturities, but do not rule out receptoral immaturities.
R M Hansen; A B Fulton
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Vision research     Volume:  31     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  1991  
Date Detail:
Created Date:  1991-12-17     Completed Date:  1991-12-17     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  1501-7     Citation Subset:  IM    
Department of Ophthalmology, Children's Hospital and Harvard Medical School, Boston, MA 02115.
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MeSH Terms
Adaptation, Ocular / physiology*
Dark Adaptation / physiology
Photic Stimulation
Grant Support

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

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