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In the past decade, interest in and research on pediatric bipolar disorder (BD) has increased substantially. Prevalence rates of the disorder have doubled in outpatient settings, while twice as many research articles on pediatric BD were published in the past five years as in the prior decade. This review focuses on recent developments in the study of(More)
Reflecting a paradigm shift in clinical neuroscience, many chronic psychiatric illnesses are now hypothesized to result from perturbed neural development. However, most work in this area focuses on schizophrenia. Here, we extend this paradigm to pediatric bipolar disorder (BD), thus demonstrating traction in the developmental psychobiology perspective. To(More)
OBJECTIVE Deficits in motor inhibition may contribute to impulsivity and irritability in children with bipolar disorder. Studies of the neural circuitry engaged during failed motor inhibition in pediatric bipolar disorder may increase our understanding of the pathophysiology of the illness. The authors tested the hypothesis that children with bipolar(More)
BACKGROUND Controversy concerning the diagnosis of pediatric bipolar disorder (BD) has focused attention on children with chronic irritability and hyperarousal. This syndrome has been called the "broad BD phenotype" or severe mood dysregulation (SMD). This study examines prevalence, concurrent Axis I diagnoses, and longitudinal outcome of SMD in an(More)
OBJECTIVE To understand disorder-unique and common pathophysiology, studies in multiple patient groups with overlapping symptoms are needed. Deficits in emotion processing and hyperarousal symptoms are prominent features of bipolar disorder, attention deficit hyperactivity disorder (ADHD), and severe mood dysregulation. The authors compared amygdala(More)
OBJECTIVE Clinicians and researchers debate whether children with chronic, nonepisodic irritability should receive the diagnosis of bipolar disorder (BD). To address this debate, we evaluated cognitive flexibility, or the ability to adapt to changing contingencies, in three groups of children: narrow-phenotype BD (NP-BD; full-duration manic episodes of(More)
BACKGROUND Pediatric bipolar disorder (BD), a highly debilitating illness, is characterized by amygdala abnormalities, i.e., volume reduction and hyperactivation during face processing. Evidence of perturbed amygdala functional connectivity with other brain regions would implicate a distributed neural circuit in the pathophysiology of BD, and would further(More)
BACKGROUND Theories in affective neuroscience suggest that mood disorders involve perturbations in attention-emotion interactions. We tested the hypothesis that frustration adversely impacts attention and behavior in children with bipolar disorder (BPD). METHODS Thirty-five children with BPD and 26 normal control subjects completed: 1) a Posner attention(More)
Recent findings have suggested that the simultaneous occurrence of neurofibromatosis and childhood psychosis might be more than a coincidence. In this study of 341 children with infantile autism and other types of childhood psychosis seen as inpatients in two university clinics of child psychiatry in a 25-year period, only one case (0.3%) of concomitant(More)
Previous research indicates that patients with depression display deficits in their ability to perceive emotions. However, few studies have used animated facial stimuli or explored sensitivity to facial expressions in depressed individuals. Moreover, limited research is available on facial processing in unipolar versus bipolar depression. In this study, 34(More)