Attention-deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder marked by an ongoing pattern of inattention or hyperactivity and impulsivity that interferes with everyday functioning.
Learning disabilities are neurologically-based processing problems. These processing problems can interfere with learning and execting basic skills such as reading, writing and math.
Autism spectrum disorder (ASD) is a broad term used to describe a group of neurodevelopmental disorders. This is a disorder characterised by problems with communication and social interaction.