难治性精神分裂症患者认知异常的事件相关电位研究  被引量:4

Event-related potential study of abnormal cognition processing in treatment-refractory schizophre- nia

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作  者:赵瑾[1] 杨来启[1] 戴捷[1] 吴兴曲[1] 张彦[1] 李亚萍[1] 

机构地区:[1]中国人民解放军第三医院全军精神疾病防治中心,宝鸡721004

出  处:《中华行为医学与脑科学杂志》2012年第10期910-912,共3页Chinese Journal of Behavioral Medicine and Brain Science

基  金:军队中医药科研专项课题(10ZYX108);军队心理卫生科研课题(12XLZ303)

摘  要:目的探讨难治性精神分裂症患者诱发电位P300和失匹配负波(MMN)的特征。方法对21例难治性精神分裂症患者(病例组)和26名健康被试(对照组)行事件相关电位1)300和MMN检测,比较两组被试F3、H、Fz、cz点P300和Fz、Cz、Pz点MMN的差异。结果①病例组反应时[(408.91±202.24)ms]长于对照组[(361.60±254.32)ms],差异具有统计学意义(P〈0.05)。②病例组P300潜伏期在F3、F4、Fz、Cz四点[分别为(385.92±53.14)ms,(400.31±51.32)/ms,(386.77±62.68)ms,(374.77±57.61)ms]长于对照组[分别为(341.00±30.42)ms,(335.23±29.71)ms,(338.65±30.09)ms,(344.42±30.86)ins],病例组波幅在F4、Fz两点[分别为(4.68±2.90)μV,(5.83±3.73)μV]比对照组[分别为(6.71±2.57)μV,(7.99±2.78)μV]低,均差异具有统计学意义(均P〈0.05)。③病例组MMN在Fz点波幅[(2.77±2.25)μV]低于对照组[(5.87±3.28)μV],差异具有统计学意义(P〈0.05)。对照组脑中央电极从前向后波幅逐渐降低,而病例组却与此相反。结论难治性精神分裂症患者认知功能受损,事件相关电位技术可以为其提供生物学基础。Objective To explore the characteristics of evoked potentials P300 and mismatched negativity (MMN) in treatment-refractory schizophrenia. Methods 21 schizophrenia patients as case group and 26 healthy subjects as normal control group were measured events-related potential P300 and MMN, and the differences of P300 at F3,F4, Fz, Cz and MMN at Fz, Cz,Pz of the two groups were compared. Results ① The reaction time of case group[ (408.91 ± 202.24) ms ] was longer than normal control group( (361.60±254.32 ) ms), and the difference was significant (P 〈 0.05 ). (~)P300 latency at F3, F4, Fz, Cz of case group ( ( 385.92 ±53.14 ) ms, ( 400.31± 51.32 ) ms, ( 386.77 ± 62.68 ) ms, ( 374.77 ± 57.61 ) ms ) were significantly longer than those of normal control group ( ( 341.00± 30.42) ms, (335.23 ± 29.71 ) ms, ( 338.65 ± 30.09 ) ms, ( 344.42 ± 30.86 ) ms ). P300 amplitude at F4, Fz of case group ( ( 4.68 ± 2.90 )μV ( 5.83± 3.73 ) μV) were significantly lower than those of normal control group ( ( 6.71 ± 2.57 ) μV, ( 7.99 ± 2.78 )μV), P 〈 0.05. (~)MMN aptitude at Fz of case group ( (2.77 ± 2.25 ) μV) was significantly lower than that of normal control group ( ( 5.87 ± 3.28 )μV) (P 〈 0.05 ). The control group presented the expected reduction in the amplitude of the MMN from frontal to central and parietal locations. MMN amplitude of case group was contrary. Conclusion Treatment-refractory schizophrenia patients have cognitive function impairment.

关 键 词:难治性精神分裂症 事件相关电位 P300 失匹配负波 

分 类 号:R749.3[医药卫生—神经病学与精神病学]

 

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