Negation is a universal component of human language; polarity sensitivity (i.e., lexical distributional constraints in relation to negation) is arguably so while being pervasive across languages. Negation has long been a field of inquiry in psychological theories and experiments of reasoning, which inspired many follow-up studies of negation and…

Over the past 50 years the concept of attention deficit/hyperactivity disorder (ADHD) has developed from the notion of a specific form of brain dysfunction to that of a heterogeneous set of related behaviours. The great advances in genetics, neuroimaging and neuropsychiatry have made it one of the best understood forms of complex mental…

Attention-deficit/hyperactivity disorder (ADHD) remains one of the most prevalent mental health diagnoses identified in school-age children. Affected children show an increased risk for school failure, social difficulties, and the development of psychiatric comorbidities. Despite the availability of evidence-based behavioral protocols for managing…

This article describes the historical conceptualization of attention deficit hyperactivity disorder (ADHD), the similarities between the behavioral manifestations of ADHD and creativity, some speculations about their common etiology, some illustrative case studies, and practical implications of mistaking one for the other. (JDD)

The article presents case studies of two males with Attention Deficit Disorder when first referred for clinical evaluation as children with follow-up at age 21. Results indicated consistency in behavior patterns and differences between subjects at referral predicted outcomes as adults. (Author/DB)

Recent research in psychology, psychiatry and neuroscience has demonstrated reliable associations between temperament and individual differences in sensitivity and responsiveness to environmental cues and behavioral consequences. Temperament-influenced behavior patterns evident in infancy have also been found to predict behavioral tendencies in…

This introduction to students with attention deficit disorder (ADD) and attention deficit hyperactivity disorder (ADHD) covers a historical perspective of these disorders, definitions of ADHD, etiology, behaviors associated with ADD and ADHD, developmental course, identification and assessment, services, classroom interventions, medication…