Document Detail


Development of human visual function.
MedLine Citation:
PMID:  21356229     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
By 1985 newly devised behavioral and electrophysiological techniques had been used to track development of infants' acuity, contrast sensitivity and binocularity, and for clinical evaluation of developing visual function. This review focus on advances in the development and assessment of infant vision in the following 25 years. Infants' visual cortical function has been studied through selectivity for orientation, directional motion and binocular disparity, and the control of subcortical oculomotor mechanisms in fixation shifts and optokinetic nystagmus, leading to a model of increasing cortical dominance over subcortical pathways. Neonatal face processing remains a challenge for this model. Recent research has focused on development of integrative processing (hyperacuity, texture segmentation, and sensitivity to global form and motion coherence) in extra-striate visual areas, including signatures of dorsal and ventral stream processing. Asynchronies in development of these two streams may be related to their differential vulnerability in both acquired and genetic disorders. New methods and approaches to clinical disorders are reviewed, in particular the increasing focus on paediatric neurology as well as ophthalmology. Visual measures in early infancy in high-risk children are allowing measures not only of existing deficits in infancy but prediction of later visual and cognitive outcome. Work with early cataract and later recovery from blinding disorders has thrown new light on the plasticity of the visual system and its limitations. The review concludes with a forward look to future opportunities provided by studies of development post infancy, new imaging and eye tracking methods, and sampling infants' visual ecology.
Authors:
Oliver Braddick; Janette Atkinson
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Publication Detail:
Type:  Historical Article; Journal Article; Review     Date:  2011-02-26
Journal Detail:
Title:  Vision research     Volume:  51     ISSN:  1878-5646     ISO Abbreviation:  Vision Res.     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-07-25     Completed Date:  2011-10-14     Revised Date:  2014-02-20    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  1588-609     Citation Subset:  IM    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
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MeSH Terms
Descriptor/Qualifier:
Accommodation, Ocular / physiology*
Child Development / physiology*
Contrast Sensitivity / physiology*
Discrimination Learning / physiology
Evoked Potentials, Visual / physiology
History, 20th Century
History, 21st Century
Humans
Infant
Nystagmus, Optokinetic / physiology*
Visual Cortex / physiology*
Grant Support
ID/Acronym/Agency:
G0601007//Medical Research Council

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


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