This study examines the efficacy of two computer-based attention training systems, one with and one without neurofeedback. The training systems intend to help children learn to focus and attend more effectively.

The current study is examining a neurofeedback (NF) computer attention training system that teaches children to alter their brainwave activity with a Cognitive Training attention training system (CT). The investigators hypothesize that both treatments will show improvement in ADHD symptoms and academic outcomes compared to a control condition.

104 children with ADHD in grades 2 and 4 are randomly assigned to receive the NF, CT, or a Waitlist-Control (WLC) condition that receives NF or CT the following academic year. Children receive forty 45-minute sessions three times a week at school for 4 months. A comprehensive assessment, consists of data completed by teachers, parents, participants, and double-blind classroom observations.

Inclusion Criteria:

• diagnosis of ADHD (any subtype, per report of the child's physician or school psychologist) entering 2nd or 4th grade at the beginning of September 2009 and 2010.
• combined IQ (Intelligence Quotient) at or above 80,
• ability to read English sufficiently to complete assessments and intervention protocols

Exclusion Criteria:

• mental retardation,
• coexisting diagnosis of conduct disorder,
• pervasive developmental disorder, or
• other serious mental illness (eg., bipolar disorder, psychosis, autism)