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抑郁障碍患者五种脑诱发电位指标的临床随访研究
A clinical follow-up study of 5 kinds of brain evoked potentials in patients with depressive disorder
【摘要】 目的探讨抑郁障碍患者5种脑诱发电位指标及其治疗前后的特点。方法应用美国脑诱发电位仪,记录38例抑郁障碍患者(患者组)和33名正常对照者(对照组)的听觉诱发电位(AEP)、视觉诱发电位(VEP)、事件相关电位 P300(ERP-P300)、失匹性负波(MMN)和关联性负变(CNV)。对其中18例患者随访至缓解期(治疗第9周末)。结果(1)与对照组相比,患者组出现AEP-N1潜伏期长[对照组(88±18)ms,患者组(104±25)ms],N1-P2波幅低[对照组(5.3±1.9)μV,患者组(3.7±1.6)μV];VEP-N1潜伏期长[对照组(125±19)ms,患者组(141±21)ms],N1-P2波幅低[对照组(8.4±2.9)μV,患者组(6.9±2.6)μV];P300-P3b潜伏期长[对照组(316±26)ms,患者组(330±21)ms],P3a和 P3b的波幅均低;CNV 中的 M1和 M2波幅低,反应时间(RT)长[对照组(213±81)ms,患者组(306±126)ms],均 P<0.01和 P<0.05。(2)随访部分患者,AEP 中的 N1-P2波幅、VEP 中的 N1潜伏期、P300中的 P3b潜伏期,MMN 波幅及 CNV 的波幅和 RT 等,与治疗前比较,差异有统计学意义(P<0.05和 P<0.01)。结论抑郁障碍患者的 AEP、VEP、P300和 CNV,较正常对照组有改变。治疗后随抑郁症状的改善,与认知功能有关的指标也有相应的改善。
【Abstract】 Objective To explore the characteristics and treatment effects of different brain evoked potentials(BEPs)in patients with depressive episode.Methods The auditory evoked potentials(AEP), visual evoked potentials(VEP),auditory event-related potentials(P30o),mismatch negativity(MMN)and contingent negative variations(CNV)were recorded and measured in 38 patients with depression and 33 normal controls,and 18 patients were followed up after clinical remission.Results(1)In comparison with controls,the patient had prolonged latencies of AEP-N1[(88±18)ms vs.(104±25)ms,P<0.01], decreased amplitude of N1-P2[(5.3±1.9)μV,vs.(3.7±1.6)μV,P<0.01],prolonged latencies of VEP-N1[(125±19)msvs.(141±21)ms,P<0.01]and of P300-P3b[(316±26)ms vs.(330±21)ms, P<0.05],decreased amplitude of P300-P3b[(6.6±3.8)μV vs.(4.2±1.7)μV,P<0.01],decreased amplitude of CNV and prolonged reaction time[(213±81)ms vs.(306±126)ms,P<0.01].(2)After clinical remission,the amplitudes of AEP-N1,AEP-P2,VEP-P2,MMN,CNV,and latencies of P300-P3bin patients showed significant changes as compared with baseline(P<0.05 or P<0.01).Conclusion The characteristics of AEP,VEP,P300and CNV are different in patients with depression episode from normal controls,and could be improved after antidepressants treatment.
- 【文献出处】 中华精神科杂志 ,Chinese Journal of Psychiatry , 编辑部邮箱 ,2007年04期
- 【分类号】R749.4
- 【被引频次】5
- 【下载频次】31