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Keywords:

  • Attention-Deficit-Hyperactivity Disorder;
  • Continuous Performance Task;
  • sustained attention;
  • signal detection measures

Abstract A recent review of the Continuous Performance Task (CPT) as a research tool by Corkum and Siegel, Journal of Child Psychology and Psychiatry, 34, 1217–1239, 1993, is criticized for insufficient covering of the relevant literature, disregard of the question of differentiation among clinical groups, and inadequacy of explanations of Attention-Deficit-Hyperactivity Disorder (ADHD) in terms of arousal, activation, and effort. An attention-deficit in ADHD children cannot be inferred from poor performance on a CPT. Impaired performance is anything but specific to ADHD children and is caused by a host of variables among which “attention” probably plays a minor role.