Affect dysregulation, defined as the impaired ability to regulate and/or tolerate negative emotional states, and has been associated with interpersonal trauma and post-traumatic stress. Affect regulation difficulties also play a role in many other psychiatric conditions, including anxiety disorders and mood disorders, specifically major depression in youth and bipolar disorder throughout the life span.
Exposure to traumatic events and interpersonal trauma in childhood is associated with a wide range of psychosocial, developmental, and medical impairments in children, adolescents and adults, with emotional dysregulation being a core feature that may help to account for this heightened risk. In order to understand how the developmental effects of childhood maltreatment contribute to emotional dysregulation and psychiatric sequelae, we review emotional regulation and its developmental neurobiology, and examine the research evidence of associations between childhood traumatization, emotional dysregulation, and psychiatric co-morbidities in children, adolescents and adults.