Differences in paper-and-pencil versus computerized line bisection according to ADHD subtype and hand-use.
Two versions of the line bisection task, paper-and-pencil and computerized, were administered to non-medicated children (5-12 years) with and without Attention-Deficit/Hyperactivity Disorder (ADHD). Fifteen children were classified with ADHD-Inattentive type (ADHD-I), 15 were classified with ADHD-Combined or Hyperactive-Impulsive type (ADHD-C), and 15 children served as controls. During the paper-and-pencil task, and irrespective of hand-use, participants with ADHD-C bisected lines with a right bias, whereas participants with ADHD-I showed a leftwards bias. Interestingly, during the computerized version, an opposite pattern of hemineglect was observed with a leftwards bias for participants with ADHD-C and a rightwards bias for participants with ADHD-I. These findings suggest that different task demands are associated with the paper-and-pencil and computerized tasks. The findings also suggest that the two subtypes differ according to their cognitive profile, and possibly differ as to their underlying neural impairment.
Rolfe
Mei Hsin Suzanne
MH
Centre for Cognitive Neuroscience, Department of Psychology, University of Auckland, Private Bag 92019, Auckland, New Zealand. s.rolfe@auckland.ac.nz
Hamm
Jeff P
JP
Waldie
Karen E
KE
D001289:Attention Deficit Disorder with Hyperactivity / Q000145:classification / Q000150:complications*; D035841:Behavioral Research / Q000379:methods; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D016555:Matched-Pair Analysis; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010468:Perceptual Disorders / Q000150:complications*; D011597:Psychomotor Performance / Q000502:physiology*; D012016:Reference Values; D014584:User-Computer Interface; D014956:Writing