ERIC Number: EJ946653
Record Type: Journal
Publication Date: 2011-Nov
Pages: 14
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0006-8950
EISSN: N/A
Resolution of Spatial and Temporal Visual Attention in Infants with Fragile X Syndrome
Farzin, Faraz; Rivera, Susan M.; Whitney, David
Brain, v134 n11 p3355-3368 Nov 2011
Fragile X syndrome is the most common cause of inherited intellectual impairment and the most common single-gene cause of autism. Individuals with fragile X syndrome present with a neurobehavioural phenotype that includes selective deficits in spatiotemporal visual perception associated with neural processing in frontal-parietal networks of the brain. The goal of the current study was to examine whether reduced resolution of spatial and/or temporal visual attention may underlie perceptual deficits related to fragile X syndrome. Eye tracking was used to psychophysically measure the limits of spatial and temporal attention in infants with fragile X syndrome and age-matched neurotypically developing infants. Results from these experiments revealed that infants with fragile X syndrome experience drastically reduced resolution of temporal attention in a genetic dose-sensitive manner, but have a spatial resolution of attention that is not impaired. Coarse temporal attention could have significant knock-on effects for the development of perceptual, cognitive and motor abilities in individuals with the disorder.
Descriptors: Attention, Infants, Visual Perception, Genetic Disorders, Mental Retardation, Genetics, Autism, Symptoms (Individual Disorders), Neurological Impairments, Brain Hemisphere Functions, Spatial Ability, Eye Movements, Comparative Analysis
Oxford University Press. Great Clarendon Street, Oxford, OX2 6DP, UK. Tel: +44-1865-353907; Fax: +44-1865-353485; e-mail: jnls.cust.serv@oxfordjournals.org; Web site: http://brain.oxfordjournals.org/
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A