The 21st century has witnessed the discovery of multiple rare and common gene variants associated with attention deficit hyperactivity disorder (ADHD), and these discoveries have already provided a starting point for the investigation of the biology of the disorder and novel treatments. The purpose of this selective review is to examine genetic findings from the past 5 years and consider their implications for the conceptualization of ADHD and future clinical practice.. Login at top right hand side of page using your MPFT NHS OpenAthens for full text. SSOTP (legacy account)- Please contact the library to receive a copy of this article - http://bit.ly/1Xyazai