Article Abstract:
Studies on the inattentiveness and distractibility of hyperactive children have produced varying results. A Chinese version of the Stroop test administered to hyperactive (HA), conduct-disordered (CD), mixed (HA + CD) and normal children shows that the HA children are more affected by distracting stimuli. The distractibility is probably due to inefficient cognitive regulation and is apparently dependent on stimulus potency and the random order of stimulus presentation. Doubts persist over the clinical identity of the mixed HA + CD group which fails to show a similar deficit.
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Article Abstract:
One of the major functions of the discipline of developmental psychopathology is to characterize the developmental course and correlates of behavioral problems. Little is known about the emergence of behavioral difficulties in early childhood and how these problems may persist, remit or change with development as research has focused on behavioral problems during middle childhood. A multimethod approach was employed in a study of two groups of hard-to-manage preschool boys at ages four, six and nine and the results are discussed.
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Article Abstract:
There is evidence that cognitive deficits in the area of executive functions distinguish children with conduct disorder (CD) from control children. This is the case even when links with socioeconomic differences and attention deficit hyperactivity disorder (ADHD) symptoms are statistically neutralized across groups. The persistence of CD symptoms was connected with the number of ADHD symptoms. It is suggested that the link between ADHD and CD symptoms is the result of ADHD symptoms predisposing to the persistence of CD symptoms.
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