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뉴로피드백 효과에 따른 EEG 기반 BCI 동작 상상 성능 평가 요소별 정확도 비교
최동학,류연수,이영범,민세동,이명호,Choi, Dong-Hag,Ryu, Yon-Su,Lee, Young-Bum,Min, Se-Dong,Lee, Myoung-Ho 대한의용생체공학회 2011 의공학회지 Vol.32 No.4
In this study, we evaluated the EEG based BCI algorithm using common spatial pattern to find realistic applicability using neurofeedback EEG based BCI algorithm - EEG mode, feature vector calculation, the number of selected channels, 3 types of classifier, window size is evaluated for 10 subjects. The experimental results have been evaluated depending on conditioned experiment whether neurofeedback is used or not In case of using neurofeedback, a few subjects presented exceptional but general tendency presented the performance improvement Through this study, we found a motivation of development for the specific classifier based BCI system and the assessment evaluation system. We proposed a need for an optimized algorithm applicable to the robust motor imagery evaluation system with more useful functionalities.
Fungal frontal sinusitis in a dog
장광호,권영삼,강원모,장환수,송창현,최동학,김대영,이근우,오태호,장인호,Jang, Kwang-ho,Kwon, Yong-sam,Kang, Won-mo,Jang, Hwan-soo,Song, Chang-hyun,Choi, Dong-hag,Kim, Dae-young,Lee, Keun-woo,Oh, Tae-ho,Jang, In-ho The Korean Society of Veterinary Science 2000 大韓獸醫學會誌 Vol.40 No.3
9.3kg의 6년령인 수컷 바셋하운드가 1년 이상 진행된 양측성 전두부위로부터 심한 점액화농성 분비물의 병력을 나타내었다. 내원당시 환축의 신체상태와 식욕은 불량하였다. 전두골위 피부에 형성된 누공으로부터 농성 삼출물이 양측성으로 분비되었다. 삼출물 시료를 배양하여 진균을 분리하였다. 방사선 검사에서는 전두동의 경계가 불분명하고 두꺼운 점액성막으로 덮여 있었으며 전두동의 혼탁도가 미만성으로 증가되어 있었다. 최종적으로 만성 진균성 전두동염으로 진단하였다. 전두동의 외과적 제거후 국소와 전신성 항진균요법으로 Chlorhexidine과 Ketoconazole을 적용하였다. 환축은 점진적으로 건강과 식욕을 회복하였다. A 6-year-old male Basset hound weighing 9.3 kg was presented with a history of severe mucopurulent discharge from the bilateral fronto-nasal area which had been developed progressively over 1 year. At admission, the physical state and appetite of the patient was poor. There was bilateral thick and mucoprulent discharge on the fronto-orbital area with fistula opening in the skin over the frontal bone. A sample of exudate was cultured and fungi were isolated. Radiographically, there was an increased diffuse opacity of the frontal sinus with decreased definition and a thickening of the mucous membrane lining the sinus. This case was finally diagnosed as chronic fungal frontal sinusitis. After surgical obliteration of the sinus, local and systemic antifungal therapy with chlorhexidine and ketoconazole were applicated. The dog had gradually recovered the physical state and appetite.