Historical and Recent Research on ADHD

Current conceptualization and definition of ADHD is a result of long term history of clinical research and epidemiological findings that partially uncovered ADHD etiology and ontogenetic development. In this chapter historical context and recent theories of ADHD development will be introduced with main focus on hypofrontality and its connection with inhibitory deficits that are frequently related to cognitive disturbances and impulsivity. In the current perspective very useful conceptualization of ADHD also describes the so-called “hot and cool” theory which might enable to understand connections between inhibitory deficits and emotional enhancement in ADHD etiopathogenesis.