CONTENTS

256 SORIN JIBOTEAN (1) AND RARES FLORIN BOIAN (2)
the score of the test, the duration it took the patient to complete the test, and
percentage of focus on the test out of the entire time spent in the virtual environment
(see Figure 2).
The percentage of focus is calculated using the position of the interaction point
(displayed as a cross-hair). The time when the patient focuses on the test is defined as
the time the interaction point is above the test, either interacting with the questions
or not interacting with anything else. The rest of the time spent arranging the objects
on the desk or looking around is considered out–of–focus time. The graph displays
the ratio between the focus time and the total test time as a percentage.
Figure 2. Visualization of recorded measurements
The test results can be view before or after the therapy session. The graphs
present a historical view of the therapy records, allowing easy visual evaluation of
performance and progress.
5. Future Work
The development of the virtual environment presented here has been completed
as the application reached a stable version. The next step is to validate it with
specialists in psychology and psychiatry. Finally this work will be validated and its
effectively and results evaluated in a pilot study followed by patient trials.
References
[1] R. Boian, Bouzit, and G. M; Burdea, “Dual stewart platform mobility simulator,” in IEEE 9th
International Conference on Rehabilitation Robotics, Chicago IL, 2005, pp. 550–555.
[2] A. Rizzo, D. Klimchuk, R. Mitura, T. Bowerly, J. Buckwalter, and T. Parsons, “A virtual reality
scenario for all seasons: The virtual classroom,” CNS Spectrums, vol. 11, no. 1, pp. 35–44, 2006.
[3] T. Parsons, T. Bowerly, J. Buckwalter, and A. Rizzo, “A controlled clinical comparison of attention
performance in children with adhd in a virtual reality classroom compared to standard
neuropsychological methods,” Child Neuropsychology.
[4] Diagnostic and statistical manual of mental disorders, fourth edition. Washington, DC: American
Psychiatric Association, 1994.