EEG Biofeedback of low beta band components: frequency-specific effects on variables of attention and event-related brain potentials
EEG Biofeedback of low beta band components: frequency-specific effects on variables of attention and event-related brain potentials
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DOI：
10.1016/s1388-2457(03)00353-5
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发表时间：
2004-01-01
影响因子：
4.7
通讯作者：
Gruzelier, JH
中科院分区：
文献类型：
--
作者：
Egner, T;Gruzelier, JH
目的：为了测试脑电图（EEG）生物反馈训练（神经反馈）临床使用的一个常见假设，即离散频带的调制与频率特异性效应相关。具体而言，该提案进行了评估，增强低β组件感觉运动节律（SMR：12-15 Hz）和β]（15-18 Hz）影响不同方面的attentional processing.Methods：受试者（n = 25）被随机分配到培训与SMR或β协议，或非神经反馈控制组。受试者进行评估之前和之后的两个持续注意力测试的培训过程。的神经反馈参与者也进行了评估，在传统的听觉oddball paradig.Results：协议特定的影响，得到了SNIR培训与增加知觉灵敏度“d总理”（d），减少遗漏错误和反应时的变异性的目标P300事件相关电位（ERP）的幅度。β 1训练与更快的反应时间和增加目标P300振幅，而没有变化是显而易见的在control group.Conclusions：神经反馈训练的SMR和β波段组件导致显着的和协议的具体影响在健康受试者。这些数据可以被解释为表明SMR训练的一般注意力增强效应和β 1训练的唤醒增强效应。(C)2004年国际临床神经生理学联合会。由Elsevier爱尔兰有限公司出版。保留所有权利。
Objective: To test a common assumption underlying the clinical use of electroencephalographic (EEG) biofeedback training (neurofeedback), that the modulation of discreet frequency bands is associated with frequency-specific effects. Specifically, the proposal was assessed that enhancement of the low beta components sensorimotor rhythm (SMR: 12-15 Hz) and beta] (15-18 Hz) affect different aspects of attentional processing.Methods: Subjects (n = 25) were randomly allocated to training with either an SMR or betal protocol, or to a non-neurofeedback control group. Subjects were assessed prior and subsequent to the training process on two tests of sustained attention. The neurofeedback participants were also assessed on target P300 event-related potential (ERP) amplitudes in a traditional auditory oddball paradigm.Results: Protocol-specific effects were obtained in that SNIR training was associated with increased perceptual sensitivity 'd prime' (d'), and reduced omission errors and reaction time variability. Beta1 training was associated with faster reaction times and increased target P300 amplitudes, whereas no changes were evident in the control group.Conclusions: Neurofeedback training of SMR and betal band components led to significant and protocol-specific effects in healthy subjects. The data can be interpreted as indicating a general attention-enhancing effect of SMR training, and an arousal-enhancing effect of betal training. (C) 2004 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.