Abstract-Attention Deficit Hyperactivity Disorder (ADHD) is a disorder characterized by a persistent pattern of inattention and/or hyperactivity/impulsivity that occurs in academic, occupational, or social settings. Though the number of men having this disorder increases gradually all over the world, the treatment for ADHD is limited to stimulant medications or a cognitive behavioral treatment. This fact caused us to develop the newly system for treatment of ADHD using Virtual Reality technology. Psychotherapy using VR has some advantages that it is safer and more effective than conventional therapeutic methods. We divided subjects into control group and VR group depending on whether they will have VR therapy with HMD & Tracking system. And we compared the results of CPT (Continuous Performance Test) between before and after the experiments. So we will show the effect of this VR system and the possibility VR technology can contribute greatly to the treatment of ADHD in this paper. Keywords -ADHD, VR, HMD, Tracking I. INTRODUCTIONAccording to DSM-IV (American Psychiatric Association, 1994), Attention Deficit Hyperactivity Disorder (ADHD) is divided into 3 patterns such like inattention, hyperactivity and impulsivity [1]. This is one of behavioral disorders that can be shown generally during a child's growth progress. These primary problems can cause the emotional maladjustment including an absence of self-confidence as well as the secondary problems, that is, maladjustment to one's social environment like academic settings, the relationship with friends. Especially these land oneself in trouble when a child is under school age that learning becomes structuralized and personal relations widen. The epidemiological studies about the rate of the outbreak of illness in America revealed prevalence rates generally ranging from 4% to 12% in the general population of 6 to 12 years old [2]. According to the result Korea Institute for Health and Social Affairs investigated how many children have behavioral problems in primary school students of 2,899, 8.6% of them showed symptoms of inattention and impulsivity and other study revealed that 9.5% of subjects showed the same symptoms [3]. One method having been used to treat ADHD is stimulant medications making use of Ritalin, Dexedrin, Cylert. The other is behavior therapy based on several simple and sensible notions about what leads children to behave in socially appropriate ways. But both two methods have some following disadvantages; side-effects (Ritalin can cause a cancer of liver[4]), needs of much time and efforts from many persons concerned. To overcome these disadvantages, we developed the treatment system using VR technology.The goal of this experiment is to develop the VR system to treat ADHD and verify the effectiveness of the VR system to treat children having ADHD. In general, VR program is progressed by the measurement of subject's EEG signal. By comparison between the results of Continuous Performance Test (CPT) before and after exposure to VR, we present how ...

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