Abstract
Attention deficit hyperactivity disorder (ADHD) is one of the most commonly diagnosed childhood psychiatric disorders, with prevalence 5-10% in general population. This developmental disorder is manifested in every part of children's behavior and it is characterized by inadequate level of attention, excessive activity and impulsivity.
ADHD is a complex disorder influenced by genetic and environmental factors, characterized by various symptomatology, etiology and heterogeneous development. It is a model disorder for combination of interaction of genetic, neurobiological and environmental factors.
According to the current knowledge, the disorder is lifelong and in case it is untreated it can significantly influence not only the life of its wearer but also its surroundings. ADHD is very often associated with other mental disorders or their symptoms.
Specific comorbidities in childhood include behavioral disorders, or behavior that is not rated as aggressive. Although these are probably fundamentally different groups of symptoms and disorders, in practice these may be confused, the lay public may then mistake increased aggressive symptoms with ADHD.
The present article summarizes current knowledge of possible manifestations of aggressive and dissocial behavior in children with ADHD.