Spectral Dynamics and Therapeutic Implications of the Theta/Alpha Crossover in Alpha-Theta Neurofeedback

Mark L. Johnson, Eugenia Bodenhamer-Davis, L. Bailey, Michael S. Gates
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引用次数: 7

Abstract

The theta-over-alpha frequency crossover seen in alpha-theta neurofeedback, considered an important factor in the treatment's success, has had little definitive research. This study examined 182 alpha-theta session graphs from 10 subject case files for interactions between frequency band activity and subject reports of imagery or biographical memories during crossovers, as well as treatment outcomes. Statistical analyses revealed significantly more reports of imagery/memories during crossover conditions having specific spectral, amplitude, and duration characteristics. Imagery reports were more likely to occur during crossover activity of 1 microvolt or more, lasting at least 3 minutes, and including 3.75µv of 15–20 Hz beta. This defined therapeutic crossover condition also was significantly related to better treatment outcome measures.
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Alpha-Theta神经反馈中Theta/Alpha交叉的频谱动力学和治疗意义
在神经反馈中看到的-over- α频率交叉,被认为是治疗成功的一个重要因素,但几乎没有明确的研究。本研究检查了来自10个受试者病例档案的182个alpha-theta会话图,以了解频带活动与受试者在交叉期间的图像或传记记忆报告之间的相互作用,以及治疗结果。统计分析显示,在交叉条件下,具有特定频谱、幅度和持续时间特征的图像/记忆报告显著增加。图像报告更有可能发生在1微伏或更高的交叉活动中,持续至少3分钟,包括3.75 μ v的15-20 Hz β。这种定义的治疗交叉条件也与更好的治疗结果测量显着相关。
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