What is ADHD?
ADHD is a developmental disorder mainly of genetic and neurological origin. It appears during early childhood, persists over time and across different environmental conditions, and is not the result of severe sensory impairment, delayed language development, autism or childhood psychosis.
ADHD does not present in the same way in every child. In some cases, attention difficulties are more prominent; in others, hyperactivity or impulsivity is more evident, while many children present a combination of these characteristics.
Predominantly inattentive type
There is significant difficulty with attention without obvious hyperactivity.
Predominantly hyperactive type
There is significant hyperactivity without attention difficulties being the dominant feature.
Combined type
Hyperactivity, impulsivity and attention difficulties coexist.