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Children with ADHD Symptoms Show Decreased Activity in Ventral Striatum during the Anticipation of Reward, Irrespective of ADHD Diagnosis
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van Hulst, Branko M.; de Zeeuw, Patrick; Bos, Dienke J.; Rijks, Yvonne; Neggers, Sebastiaan F. W.; Durston, Sarah – Journal of Child Psychology and Psychiatry, 2017
Background: Changes in reward processing are thought to be involved in the etiology of attention-deficit/hyperactivity disorder (ADHD), as well as other developmental disorders. In addition, different forms of therapy for ADHD rely on reinforcement principles. As such, improved understanding of reward processing in ADHD could eventually lead to…
Descriptors: Attention Deficit Hyperactivity Disorder, Task Analysis, Reinforcement, Therapy
Individual Differences in Dynamic Measures of Verbal Learning Abilities in Young Twin Pairs and Their Older Siblings
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van Soelen, Inge L. C.; van den Berg, Stephanie M.; Dekker, Peter H.; van Leeuwen, Marieke; Peper, Jiska S.; Hulshoff Pol, Hilleke E.; Boomsma, Dorret I. – Learning and Individual Differences, 2009
We explored the genetic background of individual differences in dynamic measures of verbal learning ability in children, using a Dutch version of the Auditory Verbal Learning Test (AVLT). Nine-year-old twin pairs (N = 112 pairs) were recruited from the Netherlands Twin Register. When possible, an older sibling between 10 and 14 years old…
Descriptors: Twins, Verbal Learning, Genetics, Individual Differences