Executive and Non-Executive Functions in Attention Deficit Hyperactivity Disorder of the Inattentive Type (ADHD-I): A Cognitive Profile

DOI: 10.4236/jbbs.2014.41001   PDF   HTML     4,955 Downloads   9,113 Views   Citations


Objective: This study examined the hypothesis that individuals with attention deficit hyperactivity disorder, predominantly inattentive type (ADHD-I), show both executive function (EF) deficits and non-EF deficits. Method: A group with ADHD-I (n = 16) and a paired control group (n = 21) completed a battery of tasks covering the major domains of EF (planning, working memory, flexibility and inhibition) and non-EF (alertness, divided attention, flexibility, sustained attention, visual field and visual scanning). Results: EF impairments in planning, spatial working memory, flexibility, and inhibition as well as non-EF impairments in divided attention, flexibility, sustained attention and visual scanning were observed in the ADHD-I group. Conclusion: Our results do not support the traditional model of ADHD. Given that neither EF nor non-EF tests typically distinguish ADHD-I from ADHD-C, alternative methodologies are required to confirm the validity of ADHD subtypes in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition.

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Y. Song and Y. Hakoda, "Executive and Non-Executive Functions in Attention Deficit Hyperactivity Disorder of the Inattentive Type (ADHD-I): A Cognitive Profile," Journal of Behavioral and Brain Science, Vol. 4 No. 1, 2014, pp. 1-10. doi: 10.4236/jbbs.2014.41001.

Conflicts of Interest

The authors declare no conflicts of interest.


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