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Newman, Daniel P.; O'Connell, Redmond G.; Nathan, Pradeep J.; Bellgrove, Mark A. – Neuropsychologia, 2012
A number of recent studies suggest that DNA variation in the dopamine transporter gene (DAT1) influences spatial attention asymmetry in clinical populations such as ADHD, but confirmation in non-clinical samples is required. Since non-spatial factors such as attentional load have been shown to influence spatial biases in clinical conditions, here…
Descriptors: Evidence, Genetics, Attention Deficit Disorders, Spatial Ability
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Hankin, Benjamin L.; Jenness, Jessica; Abela, John R. Z.; Smolen, Andrew – Journal of Clinical Child and Adolescent Psychology, 2011
5-HTTLPR, episodic stressors, depressive and anxious symptoms were assessed prospectively (child and parent report) every 3 months over 1 year (5 waves of data) among community youth ages 9 to 15 (n = 220). Lagged hierarchical linear modeling analyses showed 5-HTTLPR interacted with idiographic stressors (increases relative to the child's own…
Descriptors: Depression (Psychology), Prediction, Anxiety, Symptoms (Individual Disorders)
Nevin, John A.; Shahan, Timothy A. – Journal of Applied Behavior Analysis, 2011
Behavioral momentum theory provides a quantitative account of how reinforcers experienced within a discriminative stimulus context govern the persistence of behavior that occurs in that context. The theory suggests that all reinforcers obtained in the presence of a discriminative stimulus increase resistance to change, regardless of whether those…
Descriptors: Autism, Developmental Disabilities, Children, Behavior Modification