Developmental disabilities are a group of conditions that affect an individual's physical, cognitive, or behavioral development. These disabilities typically manifest early in life and can result in limitations in areas such as communication, learning, mobility, and socialization. Common developmental disabilities include autism spectrum disorders, intellectual disabilities, cerebral palsy, and Down syndrome. Research in this area aims to better understand the causes, characteristics, and impact of these disabilities, as well as to develop interventions and support services to improve the quality of life for individuals affected by them. This research may involve studying genetics, brain development, behavior therapy, educational strategies, and social inclusion programs.