Developmental Delay, Behavioral Abnormalities, and Neuropsychiatric Disorders, also known as dedbanp, is related to specific learning disability and attention deficit-hyperactivity disorder. An important gene associated with Developmental Delay, Behavioral Abnormalities, and Neuropsychiatric Disorders is ADGRL1 (Adhesion G Protein-Coupled Receptor L1). Related phenotypes are global developmental delay and macrocephaly