title: Deficient attention is hard to find: applying the perceptual load model of selective attention to attention deficit hyperactivity disorder subtypes.
abstract: BACKGROUND
  Whether selective attention is a primary deficit in childhood Attention Deficit Hyperactivity Disorder (ADHD) remains in active debate.
  
  
  METHODS
  We used the perceptual load paradigm to examine both early and late selective attention in children with the Primarily Inattentive (ADHD-I) and Combined subtypes (ADHD-C) of ADHD.
  
  
  RESULTS
  No evidence emerged for selective attention deficits in either of the subtypes, but sluggish cognitive tempo was associated with abnormal early selection.
  
  
  CONCLUSIONS
  At least some, and possibly most, children with DSM-IV ADHD have normal selective attention. Results support the move away from theories of attention dysfunction as primary in ADHD-C. In ADHD-I, this was one of the first formal tests of posterior attention network dysfunction, and results did not support that theory. However, ADHD children with sluggish cognitive tempo (SCT) warrant more study for possible early selective attention deficits.
authors.affiliation: Department of Psychology, Pennsylvania State University, State College, University Park, PA 16802, USA. clh39@psu.edu
authors.forename: Cynthia L
authors.initials: CL
authors.lastname: Huang-Pollock
authors.forename: Joel T
authors.initials: JT
authors.lastname: Nigg
authors.forename: Thomas H
authors.initials: TH
authors.lastname: Carr
mesh_terms: D001288:Attention; D001289:Attention Deficit Disorder with Hyperactivity / Q000523:psychology*; D002648:Child; D003071:Cognition; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006801:Humans; D008297:Male; D008960:Models, Psychological