This dissertation presents a study that was designed to tease out differences in the clinical presentations of children with disruptive mood dysregulation disorder (DMDD) and oppositional defiant disorder (ODD). These two diagnoses have been criticized for their overlap in criteria and identical prevalence rates. DMDD was introduced into the DSM-5 in order to address increasing diagnoses of pediatric bipolar disorder and is characterized by chronic irritability and severe temper outbursts nearly every day. While the introduction of the new diagnosis seemed to have an impact on the heightened bipolar diagnoses, another issue emerged regarding the overlap with ODD. Longitudinal outcomes demonstrate that children with chronic irritability are likely to develop depression in later adolescence and adulthood, and irritability may occur in children who are depressed. It was hypothesized that children with DMDD will report higher ratings of chronic irritability and heightened depressive symptoms than children with ODD, based on child and parent-report ratings of depression and irritability from 32 children, 18 with DMDD and 18 with ODD. Exploratory analysis on aggression characteristics and hidden patterns in responding were examined. This study yields clinical implications upon replication with larger samples in terms of recommendations for accurate assessment and diagnosis as well as better identifying treatment for children with DMDD.

Children living in poverty are more likely to have mental health problems, and their conditions are more likely to be severe. Of the approximately 1.3 million children who were recipients of Supplemental Security Income (SSI) disability benefits in 2013, about 50% were disabled primarily due to a mental disorder. An increase in the number of children who are recipients of SSI benefits due to mental disorders has been observed through several decades of the program beginning in 1985 and continuing through 2010. Nevertheless, less than 1% of children in the United States are recipients of SSI disability benefits for a mental disorder. At the request of the Social Security Administration, Mental Disorders and Disability Among Low-Income Children compares national trends in the number of children with mental disorders with the trends in the number of children receiving benefits from the SSI program, and describes the possible factors that may contribute to any differences between the two groups. This report provides an overview of the current status of the diagnosis and treatment of mental disorders, and the levels of impairment in the U.S. population under age 18. The report focuses on 6 mental disorders, chosen due to their prevalence and the severity of disability attributed to those disorders within the SSI disability program: attention-deficit/hyperactivity disorder, oppositional defiant disorder/conduct disorder, autism spectrum disorder, intellectual disability, learning disabilities, and mood disorders. While this report is not a comprehensive discussion of these disorders, Mental Disorders and Disability Among Low-Income Children provides the best currently available information regarding demographics, diagnosis, treatment, and expectations for the disorder time course - both the natural course and under treatment.

A practical guide to understanding and treating children and adolescents prone to extreme levels of angry outbursts, Disruptive Mood: Irritability in Children and Adolescents is based on the very latest research and theory. Providing both a clinical and scientific perspective on irritability in children, this book is a timely look at recent developments in the field. Abnormal states of anger are a common reason for referral to child health services, and cause concern in clinics, schools, and families. Misdiagnosis and treatment can stem from a lack of understanding of the mechanisms involved in high levels of anger in children, and Disruptive Mood: Irritability in Children and Adolescents provides clear guidance on the development of abnormal states of anger, their consequences for later development, and how to assess and make differential diagnoses between them. A useful resource for clinical practice, this book is concise and accessible, and offers tools for evaluating treatments. Disruptive Mood: Irritability in Children and Adolescents is designed for practitioners involved in child and adolescent mental health and education and researchers who need an introduction to this complex field.

Aggressive behavior among children and adolescents has confounded parents and perplexed professionals—especially those tasked with its treatment and prevention—for countless years. As baffling as these behaviors are, however, recent advances in neuroscience focusing on brain development have helped to make increasing sense of their complexity. Focusing on their most prevalent forms, Oppositional Defiant Disorder and Conduct Disorder, Disruptive Behavior Disorders advances the understanding of DBD on a number of significant fronts. Its neurodevelopmental emphasis within an ecological approach offers links between brain structure and function and critical environmental influences and the development of these specific disorders. The book's findings and theories help to differentiate DBD within the contexts of normal development, non-pathological misbehavior and non-DBD forms of pathology. Throughout these chapters are myriad implications for accurate identification, effective intervention and future cross-disciplinary study. Key issues covered include: Gene-environment interaction models. Neurobiological processes and brain functions. Callous-unemotional traits and developmental pathways. Relationships between gender and DBD. Multiple pathways of familial transmission. Disruptive Behavior Disorders is a groundbreaking resource for researchers, scientist-practitioners and graduate students in clinical child and school psychology, psychiatry, educational psychology, prevention science, child mental health care, developmental psychology and social work.

A practical guide to understanding and treating children and adolescents prone to extreme levels of angry outbursts, Disruptive Mood: Irritability in Children and Adolescents is based on the very latest research and theory. Providing both a clinical and scientific perspective on irritability in children, this book is a timely look at recent developments in the field. Abnormal states of anger are a common reason for referral to child health services, and cause concern in clinics, schools, and families. Misdiagnosis and treatment can stem from a lack of understanding of the mechanisms involved in high levels of anger in children, and Disruptive Mood: Irritability in Children and Adolescents provides clear guidance on the development of abnormal states of anger, their consequences for later development, and how to assess and make differential diagnoses between them. A useful resource for clinical practice, this book is concise and accessible, and offers tools for evaluating treatments. Disruptive Mood: Irritability in Children and Adolescents is designed for practitioners involved in child and adolescent mental health and education and researchers who need an introduction to this complex field.

Developmental Pathways to Disruptive, Impulse-Control, and Conduct Disorders provides essential understanding on how disruptive behavior disorder (DBD) is characterized, its early markers and etiology, and the empirically-based treatment for the disorder. The book covers features and assessment of various DBDs, including oppositional-defiant disorder, conduct disorder, and antisocial personality disorder, the psychological markers of externalizing problems, such as irritability and anger, common elements of effective evidence-based treatments for DBD for behavioral treatments, cognitive therapies, and family and community therapies. A final section discusses new and emerging insights in the prevention and treatment of DBD. - Provides a critical foundation for understanding how disruptive behavior disorder (DBD) is defined - Looks at early markers and etiology of DBD - Goes beyond the surface-level treatment provided by other books, offering in-depth coverage of various DBDs, such as oppositional-defiant disorder and antisocial personality disorder - Examines the causal factors and developmental pathways implicated in DBD - Includes cutting-edge insights into the prevention of DBD prior to the emergence of symptoms

Comprehensive, up-to-date coverage of ADHD in all ages, including co-occurring issues, new psychopharmacologic medications and cognitive and behavioral therapy techniques.