法医学杂志2011，Vol.27Issue(2)：91-93,101,4.DOI:10.3969/j.issn.1004-5619.2011.02.003
模式翻转视诱发电位P100与视敏度的相关性
Correlation of Pattern Reversal Visual Evoked Potentials P100 with Visual Acuity
摘要
Abstract
Objective To explore pattern reversal visual evoked potential (PRVEP) P100 components in the patients with different visual acuity and the correlation of P100 components with visual acuity using different visual simulation angles. Methods PRVEPs were recorded at Oz point in the patients (100 eyes) with different visual acuity including 0.2, 0.4, 0.6, 0.8 and 1.0 and induced by pattern reversal visual simulation with the different spatial frequencies(check sizes: 8°-7.5'). The latency and amplitude of components P100 were analyzed and statistical analysis was performed using SPSS 13.0 software. Results The latency and amplitude of P100 wave showed a curvilinear relationship with check sizes. With check size 1° simulation in 0.2 visual acuity group, the P100 latency reached to the minimum and the P100 amplitude showed peak value. Other groups displayed the best value with check size 30'. The P100 latency and amplitude showed a linear correlation with visual acuity. With the increase of visual acuity, the P100 wave latency decreased and the amplitude increased gradually. Regression models between visual acuity and the P100 wave latency and amplitude were also established. Conclusion The regression functions can be an objective and accurate method to evaluate the visual acuity based on the better simulation angles using PRVEP examination.关键词
法医学/诱发电位/视觉/视敏度/图形翻转视诱发电位/P100Key words
forensic medicine/ evoked potentials, visual/ visual acuity/ pattern reversal visual evoked potential/ P100分类
社会科学引用本文复制引用
李倩倩,刘小琴,陈溪萍..模式翻转视诱发电位P100与视敏度的相关性[J].法医学杂志,2011,27(2):91-93,101,4.基金项目
国家自然科学基金项目(30872666) （30872666）
上海市法医学重点实验室开放课题项目(KF1005) （KF1005）
