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Báo cáo khoa hoc:" A case study of new assessment and training of unilateral spatial neglect in stroke patients: effect of visual image transformation and visual stimulation by using a head mounted display system"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: A case study of new assessment and training of unilateral spatial neglect in stroke patients: effect of visual image transformation and visual stimulation by using a head mounted display system | Tanaka et al. Journal of NeuroEngineering and Rehabilitation 2010 7 20 http www.jneuroengrehab.eom content 7 1 20 J NER JOURNAL OF NEUROENGINEERING AND REHABILITATION RESEARCH Open Access A case study of new assessment and training of unilateral spatial neglect in stroke patients effect of visual image transformation and visual stimulation by using a head mounted display system HMD Toshiaki Tanaka 1 Tohru Ifukube1 Shunichi Sugihara2 and Takashi Izumi3 Abstract Background Unilateral spatial neglect USN is most damaging to an older stroke patient who also has a lower performance in their activities of daily living or those elderly who are still working. The purpose of this study was to understand more accurately pathology of USN using a new HMD system. Methods Two stroke patients Subject A and B participated in this study after gaining their informed consent and they all had Left USN as determined by clinical tests. Assessments of USN were performed by using the common clinical test the line cancellation test and six special tests by using HMD system in the object-centered coordinates OC condition and the egocentric coordinates EC condition. OC condition focused the test sheet only by a CCD. EC condition was that CCD can always follow the subject s movement. Moreover the study focused on the effect of the reduced image condition of real image and the arrows. Results In Patient A who performed the common test and special tests of OC and EC conditions the results showed that for the line cancellation test under the common condition both of the percentage of the correct answers at the right and left sides in the test sheet was 100 percent. However in the OC condition the percentage of the correct answers at the left side in the test sheet was 44 percent and the right side was 94 percent. In the EC condition the left side was 61 percent and the right side was 67 percent. In Patient B according to the result of the use of reduced image condition and the arrows condition .