Looking for children ages 7-11 with a diagnosis of ADHD or with no diagnoses to participate in a study exploring changes in brain function in response to a novel neurofeedback training. Participation involves 6 sessions of neurofeedback training and 2 sessions of behavioral assessments. Contact Lindsay Chromik at lchromik@stanford.edu or 650-724-2939 for more information or to enroll. For general information regarding participant rights, contact 1- 866-680-2906.