Visual Search by Children With and Without ADHD
Jennifer C. Mullane*
and
Raymond M. Klein
Dalhousie University
* To whom correspondence should be addressed. E-mail: jcmullan{at}dal.ca.
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Abstract |
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Objective: To summarize the literature that has employed visual search tasks to assess automatic and effortful selective visual attention in children with and without ADHD. Method: Seven studies with a combined sample of 180 children with ADHD (M age = 10.9) and 193 normally developing children (M age = 10.8) are located. Results: Using a qualitative approach, the authors find no group difference in automatic search, but results are variable for effortful serial search. Using a novel, graphical approach, the authors find that the ADHD group demonstrated less efficient serial search. This overall effect is explored as a function of search display complexity. Children with ADHD search less efficiently at the lowest and highest levels of display complexity. Conclusion: Children with ADHD show impairments in aspects of their effortful visual selective attention, as measured by visual search.