Performance patterns in Conners' CPT among children with attention deficit hyperactivity disorder and dyslexia.

This study investigated the performance of children with attention deficit hyperactivity disorder (ADHD) and dyslexia using Conners' Continuous Performance Test (CCPT). The clinical groups were composed of 52 children with ADHD and 32 children with dyslexia. Performance in the CCPT was evaluated using ANCOVA to compare the clinical groups with the normative Brazilian sample. The ADHD group performed worse than the normative sample in almost all of the measurements, except for reaction time and response style. The dyslexia group scored higher on commissions, variability, perseverations and inconsistency in the reaction time over the six time blocks (Hit SE Block Change) than the children in the normative Brazilian sample. The ADHD and dyslexia groups differed in omission measurements, Hit RT SE, variability, perseverations, Hit RT Interstimulus Intervals (ISI) Change and Hit SE ISI Change. We thus found that the dyslexia group had specific deficit patterns, with greater response to non-target stimuli, greater perseveration and response variability, and difficulties in hit reaction time as the test progressed.

Performance patterns in Conners' CPT among children with attention deficit hyperactivity disorder and dyslexia / Padrão de desempenho no Conners' CPT em crianças com transtorno do déficit de atenção e hiperatividade e dislexia

This study investigated the performance of children with attention deficit hyperactivity disorder (ADHD) and dyslexia using Conners' Continuous Performance Test (CCPT). The clinical groups were composed of 52 children with ADHD and 32 children with dyslexia. Performance in the CCPT was evaluated using ANCOVA to compare the clinical groups with the normative Brazilian sample. The ADHD group performed worse than the normative sample in almost all of the measurements, except for reaction time and response style. The dyslexia group scored higher on commissions, variability, perseverations and inconsistency in the reaction time over the six time blocks (Hit SE Block Change) than the children in the normative Brazilian sample. The ADHD and dyslexia groups differed in omission measurements, Hit RT SE, variability, perseverations, Hit RT Interstimulus Intervals (ISI) Change and Hit SE ISI Change. We thus found that the dyslexia group had specific deficit patterns, with greater response to non-target stimuli, greater perseveration and response variability, and difficulties in hit reaction time as the test progressed.

O presente estudo investigou o desempenho de crianças com transtorno do déficit de atenção e hiperatividade (TDAH) e dislexia no Teste de Desempenho Contínuo de Conner (do inglês Conners' Continnuous Performance Test). Foram considerados dois grupos clínicos: 52 crianças com TDAH e 32 com dislexia. O desempenho no CCPT foi analisado por meio do teste ANCOVA, comparando os grupos clínicos com a amostra de normatização brasileira. O grupo TDAH teve pior desempenho que os controles em quase todas as medidas, exceto em medidas de tempo de reação e estilo de resposta. Já o grupo dislexia teve maiores escores em comissões, variabilidade, perseverações e inconsistência nas mudanças de tempo de reação no decorrer dos seis blocos de tempo (Hit SE Block Change). Os grupos TDAH e disléxicos diferiram entre si nas medidas de omissões, variabilidade do tempo de reação, perseverações, mudança de tempo de reação por intervalos interstimulus. Verificou-se assim que as crianças com dislexia apresentam padrões específicos de déficits, com maior resposta aos estímulos não alvos, maior perseveração e variabilidade de respostas, assim como dificuldades no tempo de reação conforme o desenvolvimento do teste.