感音神经性聋患者失匹配负波特征分析
Mismatch Negativity in Patients with Sensorineural Hearing Loss
查看参考文献15篇
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文摘
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目的 初步研究感音神经性聋患者短纯音刺激失匹配负波(mismatch negativity,MMN)的变化特征.方法 采用美国32导Neuroscan EEG/ERP记录系统对24例(48耳)听力正常受试者和7例(14耳)感音神经性聋患者进行MMN测试.采用经典0ddball模式,标准刺激和偏差刺激分别为500 Hz和1 000 Hz的短纯音测试两组受试者MMN,比较两组MMN潜伏期和波幅的差异.结果 感音神经性聋组MMN潜伏期为145.00±16.11 ms,与对照组130.45±7.31 ms相比,明显延长(P=0.009),两组的波幅改变无统计学意义(P=0.908).而两组的波幅变异系数(CV%)均大于对应潜伏期的变异系数(CV%).结论 感音神绛性聋患者MMN的潜伏期明显延长,波幅变化不大.MMN潜伏期相对比较稳定,但波幅个体间差异较大. |
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其他语种文摘
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Objective To investigate the characteristics of mismatch negativity in sensorineural hearing loss (SNHL) patients. Methods Mismatch negativity(MMN) was recorded from 7 adults(14 ears) with hearing impairment and 24 normal hearing adults(48 ears) using American 32 -channel Neuroscan EEG/ERP system. The standard (500 Hz tone burst) and deviant stimuli(1 000 Hz tone burst) were presented in an oddball paradigm and the MMN were recorded under a passive listening condition. The latencies and amplitudes of the two groups were compared. Results The peak latency of MMN in the SNHL group was 145.00±16.11 ms, which was significantly longer than that of 130.45±7.31 ms in the control group (P = 0.009). In comparison with the control group,the MMN amplitude was unchanged in the SNHL group(P = 0.908). Conclusion The latency of MMN in SNHL group is significantly longer than that of the control group, but the amplitude changes slightly. The latency of MMN is relatively stable, but the amplitude of MMN is variable among individuals. |
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来源
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听力学及言语疾病杂志
,2009,17(1):20-23 【扩展库】
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关键词
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感音神经性聋
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失匹配负波
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事件相关电位
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地址
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首都医科大学附属北京同仁医院耳鼻咽喉头颈外科, 北京, 100730
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首都医科大学附属北京同仁医院放射科
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北京市耳鼻咽喉科研究所
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中国科学院心理研究所
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北京市第一聋人学校
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1006-7299 |
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学科
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耳鼻咽喉科学 |
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基金
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北京市自然科学基金
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北京市教委科技发展计划面上项目
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国家教育部高等学校博士学科点专项科研基金
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北京市科技新星计划项目
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北京市自然科学基金
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文献收藏号
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CSCD:3570883
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参考文献 共
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