The document discusses the effects of trauma on child psychological development. It states that trauma from abuse, neglect, or other stressful experiences can harm brain development and negatively impact mental, social, and physical health later in life. Specifically, it discusses how trauma affects neurodevelopment and psychosocial development in ways that impair functions like memory, learning, emotional regulation, and interpersonal skills. The document also examines different types of trauma and their characteristic effects on children.