Background: To step up research in ADHD, exchange of ideas, working together on key theoretical models and cooperative studies are necessary.
Objective: To report about a European approach with strong links to the rest of the world.
Method: European Network on Hyperkinetic Disorders (Eunethydis) studies of Attention -- Deficit Hyperactivity Disorder (ADHD) or Hyperkinetic Disorder (HKD) is briefly reviewed in the context of the international effort to discover the aetiology of the disorder.
Results: There are promising neurobiological, neurophysiological and neuropsychological candidates to explain the nature of ADHD/HKD.
Conclusion: Eunethydis has shown to be a fruitful platform for ADHD research and has good resources for its further development.