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首页> 外文期刊>International journal of psychophysiology: official journal of the International Organization of Psychophysiology >Inter-individual variability of oscillatory responses to subject's own name. A single-subject analysis.
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Inter-individual variability of oscillatory responses to subject's own name. A single-subject analysis.

机译:个体对自己名字的振荡反应之间的个体差异。单主题分析。

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In previous studies event-related potentials and oscillations in response to subject's own name have been analyzed extensively on group-level in healthy subjects and in patients with a disorder of consciousness. Subject's own name as a deviant produces a P3. With equiprobable stimuli, non-phase-locked alpha oscillations are smaller in response to subject's own name compared to other names or subject's own name backwards. However, little is known about replicability on a single-subject level. Seventeen healthy subjects were assessed in an own-name paradigm with equiprobable stimuli of subject's own name, another name, and subject's own name backwards. Event-related potentials and non-phase locked oscillations were analyzed with single-subject, non-parametric statistics. No consistent results were found either for ERPs or for the non-phase locked changes of oscillatory activities. Only 4 subjects showed a robust effect as expected, that is, a lower activity in the alpha-beta range to subject's own name compared to other conditions. Four subjects elicited a higher activity for subject's own name. Thus, analyzing the EEG reactivity in the own-name paradigm with equiprobable stimuli on a single-subject level yields a high variance between subjects. In future research, single-subject statistics should be applied for examining the validity of physiologic measurements in other paradigms and for examining the pattern of reactivity in patients.
机译:在先前的研究中,已经在健康受试者和意识障碍患者的小组水平上广泛分析了与事件相关的电位和响应受试者自身姓名的波动。受试者自己的名字作为偏差产生一个P3。通过等概率的刺激,与其他名称或对象自己的名称相比,非锁相的α振荡对对象自己的名称的响应要小。但是,关于单主体水平的可复制性知之甚少。在一个以自己名字命名的范例中评估了十七名健康受试者,并向后对受试者自己的名字,另一个名字和受试者自己的名字进行了相当可能的刺激。与事件相关的电势和非锁相振荡通过单项非参数统计进行了分析。对于ERPs或振荡活动的非相位锁定变化均未找到一致的结果。只有4位受试者表现出预期的强效效果,也就是说,与其他条件相比,受试者自身名字在alpha-beta范围内的活性较低。四名受试者对受试者自己的名字提出了更高的要求。因此,在单科目的水平上用等概率刺激分析自名范式中的脑电图反应性会导致受试者之间的差异很大。在未来的研究中,应将单项统计学应用于检查其他范例中生理测量的有效性以及检查患者的反应模式。

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