中国医学科学杂志(英文版)
中國醫學科學雜誌(英文版)
중국의학과학잡지(영문판)
CHINESE MEDICAL SCIENCES JOURNAL
2001年
3期
153-156
,共4页
张晓君%赵毅%高玉红%耿稚萍%余华峰
張曉君%趙毅%高玉紅%耿稚萍%餘華峰
장효군%조의%고옥홍%경치평%여화봉
Objective. To explore the changes of three-tone paradigm P300 and observe the improvement of the diagnostic sensitivity of P300 in aging dementia.``Methods. Thirty-four patients of aging dementia underwent traditional P300 (2t-P300) and three-tone paradigm auditory P300 (3t-P300). The resuhs of these two methods were compared.Results. Abnormal P300 was found in 18 of 34 dementia cases (52.9%) by 2t-P300, and in 26 of 30 patients who finished the 3t-P300 tests (86. 7% ). In 2t-P300, 9 of 24 mild cases, 7 of 8 moderate cases and 2severe cases showed abnormal results. In 3t-P300, 20 of 24 mild cases and all 6 moderate cases showed abnormal results. Abnormal 3t-P300 was found in 13 of 16 cases which showed normal 2t-P300. Besides prolonged and bad-shaped P300, no certain response of P300 to rare non-target stimulus (r-nT) was found in 10 mild cases by 3t-P300.``Conclusion. Three-tone paradigm auditory P300 had higher sensitivity in early diagnosis of aging dementia than traditional auditory P300. No P300 response to r-nT in 3t-P300 is an important index in early diagnosis of mild dementia.