Elsabbagh, M and Volein, A and Holmboe, K and Tucker, L and Csibra, G and Baron-Cohen, S and Bolton, P and Charman, T and Baird, G and Johnson, MH (2009) Visual orienting in the early broader autism phenotype: disengagement and facilitation. Journal of Child Psychology and Psychiatry, 50 (5). pp. 637-642. DOI https://doi.org/10.1111/j.1469-7610.2008.02051.x
Elsabbagh, M and Volein, A and Holmboe, K and Tucker, L and Csibra, G and Baron-Cohen, S and Bolton, P and Charman, T and Baird, G and Johnson, MH (2009) Visual orienting in the early broader autism phenotype: disengagement and facilitation. Journal of Child Psychology and Psychiatry, 50 (5). pp. 637-642. DOI https://doi.org/10.1111/j.1469-7610.2008.02051.x
Elsabbagh, M and Volein, A and Holmboe, K and Tucker, L and Csibra, G and Baron-Cohen, S and Bolton, P and Charman, T and Baird, G and Johnson, MH (2009) Visual orienting in the early broader autism phenotype: disengagement and facilitation. Journal of Child Psychology and Psychiatry, 50 (5). pp. 637-642. DOI https://doi.org/10.1111/j.1469-7610.2008.02051.x
Abstract
Background:? Recent studies of infant siblings of children diagnosed with autism have allowed for a prospective approach to examine the emergence of symptoms and revealed behavioral differences in the broader autism phenotype within the early years. In the current study we focused on a set of functions associated with visual attention, previously reported to be atypical in autism. Method:? We compared performance of a group of 9?10-month-old infant siblings of children with autism to a control group with no family history of autism on the ?gap-overlap task?, which measures the cost of disengaging from a central stimulus in order to fixate a peripheral one. Two measures were derived on the basis of infants? saccadic reaction times. The first is the Disengagement effect, which measures the efficiency of disengaging from a central stimulus to orient to a peripheral one. The second was a Facilitation effect, which arises when the infant is cued by a temporal gap preceding the onset of the peripheral stimulus, and would orient faster after its onset. Results and conclusion:? Infant siblings of children with autism showed longer Disengagement latencies as well as less Facilitation relative to the control group. The findings are discussed in relation to how differences in visual attention may relate to characteristics observed in autism and the broader phenotype
Item Type: | Article |
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Uncontrolled Keywords: | Infancy; autism; visual attention; gap-overlap task; disengagement |
Subjects: | B Philosophy. Psychology. Religion > BF Psychology R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Psychology, Department of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 01 Mar 2013 12:32 |
Last Modified: | 16 May 2024 18:31 |
URI: | http://repository.essex.ac.uk/id/eprint/5699 |