Infrequent, but not frequent, reinforcers produce more variable responding and deficient sustained attention in young children with attention-deficit/hyperactivity disorder (ADHD)
Article Abstract:
The influence of reinforcement frequency on operationalized measures of hyperactivity, impulsiveness, sustained attention and response variability was analyzed from the dynamic developmental theory of attention deficit/hyperactivity disorder (ADHD). The results provided support for the dynamic developmental theory of ADHD, predicting relationships between neurobiological deficits, altered reinforcement mechanisms and treatment recommendations.
Publication Name: Journal of Child Psychology and Psychiatry
Subject: Psychology and mental health
ISSN: 0021-9630
Year: 2006
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Bivariate linkage scan for reading disability and attention-deficit/hyperactivity disorder localizes pleiotropic loci
Article Abstract:
The established genetic correlation between reading disability (RD) and attention-deficit/hyperactivity disorder suggests that their comorbidity is due at least in part to genes that have an impact on several phenotypes, a phenomenon known as pleiotropy. A bivariate linkage test employed for selected samples to help identifying these pleiotropic loci highlights the utility of the linkage method to study pleitropy.
Publication Name: Journal of Child Psychology and Psychiatry
Subject: Psychology and mental health
ISSN: 0021-9630
Year: 2005
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