Abstract:
:Inhibition of return (IOR) refers to an increase in time to react to a target in a previously attended location. Children with spina bifida meningomyelocele (SBM) and hydrocephalus have congenital dysmorphology of the midbrain, a brain region associated with the control of covert orienting in general and with IOR in particular. The authors studied exogenously cued covert orienting in 8- to 19-year-old children and adolescents (84 with SBM and 37 age-matched, typically developing controls). The exogenous cue was a luminance change in a peripheral box that was 50% valid for the upcoming target location. Compared with controls, children with SBM showed attenuated IOR in the vertical plane, a deficit that was associated with midbrain dysmorphology in the form of tectal beaking but not with posterior brain volume loss. The data add to the emerging evidence for SBM deficits in attentional orienting to salient information.
journal_name
Neuropsychologyjournal_title
Neuropsychologyauthors
Dennis M,Edelstein K,Copeland K,Frederick JA,Francis DJ,Hetherington R,Blaser SE,Kramer LA,Drake JM,Brandt ME,Fletcher JMdoi
10.1037/0894-4105.19.4.456subject
Has Abstractpub_date
2005-07-01 00:00:00pages
456-65issue
4eissn
0894-4105issn
1931-1559pii
2005-08223-006journal_volume
19pub_type
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