Document Detail


The saccadic system does not compensate for the immaturity of the smooth pursuit system during visual tracking in children.
MedLine Citation:
PMID:  23615545     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Motor skills improve with age from childhood into adulthood and this improvement is reflected in the performance of smooth pursuit eye movements. In contrast, the saccadic system becomes mature earlier than the smooth pursuit system. Therefore, the present study investigates whether the early mature saccadic system compensates for the lower pursuit performance during childhood. To answer this question, horizontal eye movements were recorded in 58 children (ages 5-16) and 16 adults (ages 23-36) in a task that required the combination of smooth pursuit and saccadic eye movements. Smooth pursuit performance improved with age. However, children had larger average position error during target tracking compared to adults but they did not execute more saccades to compensate for their low pursuit performance despite the early maturity of their saccadic system. This absence of error correction suggests that children have a lower sensitivity to visual errors compared to adults. This reduced sensitivity might stem from poor internal models and longer processing time in young children.
Authors:
Caroline Ego; Jean-Jacques Orban de Xivry; Marie-Cecile Nassogne; Demet Yüksel; Philippe Lefévre
Related Documents :
4086145 - The 'health culture' of families as an influence on the use of surgery for glue ear: a ...
17908735 - Lumbar puncture success rate is not influenced by family-member presence.
2754055 - Melanocytic nevi in schoolchildren in queensland.
15689145 - Grandparent caregiving role in filipino american families.
15665705 - Population-based surveillance for childhood invasive pneumococcal disease in the era of...
7888295 - Inhibition of caffeine metabolism by ciprofloxacin in children with cystic fibrosis as ...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-4-24
Journal Detail:
Title:  Journal of neurophysiology     Volume:  -     ISSN:  1522-1598     ISO Abbreviation:  J. Neurophysiol.     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-4-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375404     Medline TA:  J Neurophysiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1Universite catholique de Louvain.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

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


Previous Document:  Hip proprioceptors preferentially modulate reflexes of the leg in human spinal cord injury.
Next Document:  Compressive spatial summation in human visual cortex.