BACKGROUND DSM-IV specifies three ADHD subtypes; the combined, the hyperactive-impulsive and the inattentive. Little is known about the developmental relationships underlying these subtypes. The objective of this study was to describe the development of parent-reported hyperactivity-impulsivity and inattention symptoms from childhood to adolescence and to study their associations with genetic f...

BACKGROUND Numerous factor analytic studies consistently support a distinction between two symptom domains of attention-deficit/hyperactivity disorder (ADHD), inattention and hyperactivity/impulsivity. Both dimensions show high internal consistency and moderate to strong correlations with each other. However, it is not clear what drives this strong correlation. The aim of this paper is to addre...

Blocking is a classical conditioning task in which prior training to one cue such as a tone reduces learning about a second cue such as a light, when subsequently trained as a tone-light compound. Blocking has been theorized to come about through a US-modulated error correction mechanism by Rescorla & Wagner (1972) as well as through a mechanism of learned inattention as theorized by Mackintosh...

There is considerable evidence that externalizing disorders such as attention deficit/hyperactivity disorder (ADHD) put youth at risk for a range of adverse academic outcomes. It is importantly to note that some youth avoid these negative outcomes, yet there is a gap in our understanding of these resilient youth. The purpose of this study was to longitudinally evaluate social acceptance and soc...

Survey elicitation of consumer preferences for product attributes where survey-taker inattention bias exists can lead to irrational choices. Survey-taker measures, such as screen reading time, be confounded by repeat purchasers taking the survey. This study estimates willingness pay (WTP) farmstead milk attributes, including pasteurization type (VAT, HTST, Ultra), packaging (plastic, paper, gla...