摘要
目的探讨网络成瘾青少年的事件相关电位N400变化及其与语言功能变化的关系。方法选取Young评分超过80分的网络聊天成瘾青少年20例,接受N400检测,刺激程序分为A和B两部分,A为不包含网络语言的语句(语义匹配和不匹配语句各40句),B为包含有网络语言的语句(其中网络语言40句,不包含网络语言的正常匹配句40句),语句刺激过程中同步采集脑电数据并离线进行N400分析;采用词语流畅性实验,了解语言认知功能损害程度。随即选取年龄,文化程度等背景相似的无网络成瘾的被试作为正常对照。结果网络成瘾组与对照组相比,N400检测显示潜伏期延长,波幅降低;带有网络语言成分句N400检测网络成瘾组未检测到明显N400波形成,而正常对照组检测发现有N400波;词语流畅性作业前者结果也少于对照组,两者之间存在显著差异。结论网络成瘾青少年出现常规语言流畅性功能下降,与N400变化具有一定相关性。
Objective To investigate the significances of event--related potentials（ERPs） N400 in adolescents with internet addiction disorder（IAD）. Methods N400 of 20 adolescents with IAD（case group） and 20 healthy adolescent（control group） were taken. Stimulation program were divided into two groups,A and B. Group A did not include network languages. Group B included network lanuages. The results of case group and control group were compared with each other; The method of verbal fluency task was used to evaluate lingual and cognitive function. Resuits N400 amplitude and latency of the case group were 3. 5±2.0uv and 394.9±12. 9ms;N400 amplitude and latency of the control group were 6. 2±2. 3 uv and 365.8±13.0ms. The results of the case group were less than the control group in verbal fluency task. There were obvious difference between two groups（P〈0. 05）. Conclusion ERPs N400 of adolescent with IAD shows cognitive dysfunction in the patients.
出处
《立体定向和功能性神经外科杂志》
2008年第6期333-335,347,共4页
Chinese Journal of Stereotactic and Functional Neurosurgery
基金
国家自然科学基金项目(编号:30670683)
安徽省自然科学基金项目(编号:070413264X)
关键词
事件相关电位
语言
网络成瘾
Event- related potentials
Language
Internet addiction
