Abstract：
:The Sustained Attention to Response task is a classical neuropsychological test that has been used by many centres to characterize the attentional deficits in traumatic brain injury, ADHD, autism and other disorders. During the SART a random series of digits 1-9 is presented repeatedly and subjects have to respond to each digit (go trial) except the digit '3' (no-go trial). Using voxel-based lesion symptom mapping (VLSM) in a consecutive series of 44 ischemic unifocal non-lacunar hemispheric stroke patients we determined the neuroanatomy of 4 SART parameters: commission and omission error rate, reaction time variability and post-error slowing. Lesions of the right inferior frontal gyrus significantly increased commission error rate. Lesions of the middle third of the right inferior frontal sulcus (IFS) reduced post-error slowing, a measure of how well subjects can utilize errors to adjust cognitive resource allocation. Omissions and reaction time variability had less localising value in our sample. To conclude, commission errors and post-error slowing in the SART mainly probe right inferior frontal integrity.
journal_name
Neuropsychologiajournal_title
Neuropsychologiaauthors
Molenberghs P,Gillebert CR,Schoofs H,Dupont P,Peeters R,Vandenberghe Rdoi
10.1016/j.neuropsychologia.2009.06.012subject
Has Abstractpub_date
2009-11-01 00:00:00pages
2866-75issue
13eissn
0028-3932issn
1873-3514pii
S0028-3932(09)00267-Xjournal_volume
47pub_type
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