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The goal of this study is to determine if preoperative temperament is associated with postoperative pain, emergence agitation, emotional and behavioral changes, and overall parent satisfaction. This is a prospective observational study to assess preoperative temperament in pediatric patients undergoing tonsillectomy and adenoidectomy, gather demographic data, intraoperative data regarding surgical and anesthetic technique, and collect immediate postoperative data to assess pain, emergence agitation (EA), parental satisfaction as well as remote postoperative data to assess emotional and behavior changes. These data will be used to determine if patients with a specific temperament profile are more likely to experience increased pain, emergence agitation, emotional changes, and behavioral disturbances postoperatively.
The purpose of this study is to use brain imaging technology to examine brain changes that occur in children when they are exposed to various kinds of emotional tasks and to determine if these changes are related to the child's temperament. Studies suggest that the risk for developing mood and anxiety disorders in preschool children may be linked to differences in temperament. The relationship between temperament and risk or resilience may reflect the influences of brain activity on behavior at different stages of childhood development. Behavioral inhibition and mood or anxiety disorders have been linked to disturbances in the circuitry of several areas in the brain. However, the involvement of this circuitry in temperament remains unclear. This study will use functional magnetic resonance imaging (fMRI) to examine the function of different parts of the brain in children who have previously undergone temperament studies and have had their temperaments classified. Two sets of studies will be performed in the current protocol. A small set of pilot studies will be performed in infants, by staff at the University of Maryland. In terms of the studies among infants, these subjects will initially be contacted by staff at Maryland and then will be seen at the NIH for up to three visits lasting between 4- to 5- hours during the first year of life. These subjects also will undergo visits at the University of Maryland throughout the first year of life. This study will comprise up to four clinic visits. At Visit 1, children and their parents will meet with study staff individually and together for psychiatric interviews. Children will undergo a physical examination, medical history, a urine drug test, and practice in an fMRI simulator. Saliva samples will be collected from the children and tests will be given to assess stage of puberty, temperament, intelligence, feelings, experiences, and behavior. Other visits include fMRI scans of the brain and other tasks.
The goal of this study is to test a novel intervention for children ages 6-11 with elevated callous-unemotional (CU) traits. Conduct problems are among the most prevalent and costly mental health conditions of childhood, and a common antecedent to adult psychiatric disorders. An established risk factor for early, persistent, and severe youth misconduct is the presence of CU traits. CU traits (e.g., lack of empathy or guilt, shallow affect) are analogous to the core affective features of adult psychopathy, interfere with child socialization, and predict poorer outcomes, even with well-established treatments for disruptive behavior disorders. Thus, novel intervention approaches are needed to target CU traits. Youth with elevated CU traits show deficits in facial emotion recognition (FER) for distress-related expressions, particularly fear or sadness. The central hypothesis is that impaired sensitivity for emotional distress cues (fear and/or sadness) is mechanistically linked to CU traits in children, and that, by targeting affect sensitivity directly, intervention can exert downstream effects on CU traits. A gap in the field regards how to remediate these neurocognitive deficits. This project will directly target affect sensitivity in high-CU youth. The investigators propose an experimental therapeutics approach to develop a novel neurocognitive intervention for CU traits, in which a clearly identified target, facial affect sensitivity (FAS), will be engaged and assessed via primary (distress FER accuracy and/or heightened eye gaze) and secondary (electroencephalograph event-related potential) neurocognitive and behavioral processes. If investigators can demonstrate engagement of the target (FAS) in the initial R61 phase, then in the R33 phase, this finding will be replicated with a new, larger sample, and feasibility and preliminary efficacy of FAST on CU traits will be examined. The long-term goal is to examine FAST impact on behavioral outcomes and to potentially apply this targeted intervention to the wider range of problems associated with CU traits.