TY - JOUR
T1 - Are sensation seeking and emotion processing related to or distinct from cognitive control in children with ADHD?
AU - Blaskey, Lisa G.
AU - Harris, Lauren Julius
AU - Nigg, Joel T.
N1 - Funding Information:
From the Department of Psychology, Michigan State University. This work was supported by National Institute of Mental Health Grant R01-MH59105 to Joel Nigg. The authors thank Timothy Carbary for help with preparation of the chimeric faces stimuli and the Lansing School District Office of Evaluation Services for assistance in recruiting participants.
PY - 2008/7
Y1 - 2008/7
N2 - This study evaluated the relationship of (a) reactive inhibition and right-lateralized emotion processing to each other and (b) to executive control of response suppression, and (c) with regard to ADHD in 134 children ages 7-12 years. Reactive inhibition was indexed by child ratings of sensation seeking on the Sensation Seeking Scales, executive control by the Stop Signal Task, emotion processing by performance on the Chimeric Faces Test, and ADHD by parent- and teacher-reported symptoms. The results were consistent with a two-process model in which executive control, conceived as a right-hemisphere lateralized function, was distinct from sensation seeking and lateralized emotion processing. Supporting this distinction, ADHD was associated with executive control, but not with sensation seeking/reactive inhibition or lateralized emotion processing. The findings suggest that ADHD cannot be understood as a global right-lateralized neuropsychological weakness, but rather that it involves only particular functions that may be right lateralized. Findings further suggest that risk for comorbid disorders in ADHD (e.g., conduct disorder or mood disorders) may increase as a function of independent factors such as temperament. Mechanisms underlying executive inhibition and emotional processing could be functionally independent yet interact to multiply psychopathological risk in some children (leading, for example, to comorbid disorders).
AB - This study evaluated the relationship of (a) reactive inhibition and right-lateralized emotion processing to each other and (b) to executive control of response suppression, and (c) with regard to ADHD in 134 children ages 7-12 years. Reactive inhibition was indexed by child ratings of sensation seeking on the Sensation Seeking Scales, executive control by the Stop Signal Task, emotion processing by performance on the Chimeric Faces Test, and ADHD by parent- and teacher-reported symptoms. The results were consistent with a two-process model in which executive control, conceived as a right-hemisphere lateralized function, was distinct from sensation seeking and lateralized emotion processing. Supporting this distinction, ADHD was associated with executive control, but not with sensation seeking/reactive inhibition or lateralized emotion processing. The findings suggest that ADHD cannot be understood as a global right-lateralized neuropsychological weakness, but rather that it involves only particular functions that may be right lateralized. Findings further suggest that risk for comorbid disorders in ADHD (e.g., conduct disorder or mood disorders) may increase as a function of independent factors such as temperament. Mechanisms underlying executive inhibition and emotional processing could be functionally independent yet interact to multiply psychopathological risk in some children (leading, for example, to comorbid disorders).
KW - ADHD
KW - Emotion processing
KW - Executive functions
KW - Inhibition
KW - Lateralization
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U2 - 10.1080/09297040701660291
DO - 10.1080/09297040701660291
M3 - Article
C2 - 18568778
AN - SCOPUS:45949105782
SN - 0929-7049
VL - 14
SP - 353
EP - 371
JO - Child Neuropsychology
JF - Child Neuropsychology
IS - 4
ER -