Abstract
Following a distributed network model of visuospatial attention, the authors used an A-X version of the Continuous Performance Test and a covert orienting paradigm to examine the vigilance, anterior, and posterior attention systems. Compared with control participants without attention-deficit/ hyperactivity disorder (ADHD), children with the predominantly inattentive (ADHD-I) and combined (ADHD-C) subtypes had lower sensitivity (d') to detect targets from nontargets. Children with ADHD-C, but not ADHD-I, additionally had a highly activated response style (lnβ). Performance for both subtypes decreased to a greater extent over time in a manner consistent with problems in sustained attention. Together, these results suggest the presence of vigilance system deficits in participants with both ADHD subtypes. However, consistent with previous meta-analytic work, there was no evidence for anterior or posterior system orienting dysfunctions in either subtype.
Original language | English (US) |
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Pages (from-to) | 420-429 |
Number of pages | 10 |
Journal | Neuropsychology |
Volume | 20 |
Issue number | 4 |
DOIs | |
State | Published - Jul 2006 |
Externally published | Yes |
Keywords
- Attention deficit hyperactivity disorder (ADHD)
- Continuous Performance Test
- Visuospatial orienting
ASJC Scopus subject areas
- Neuropsychology and Physiological Psychology