Janzen T, Graap K, Stephanson S, Marshall W, Fitzsimmons G
Department of Educational Psychology, University of Alberta, Edmonton, Canada.
Biofeedback Self Regul. 1995 Mar;20(1):65-82. doi: 10.1007/BF01712767.
This study was designed as a replication of previous studies describing dynamic EEG differences between behaviorally dissimilar groups. This study is intended as a reference point from which other researchers can continue to establish the EEG correlates of "on-task" behavior. Eight Attention Deficit Disordered (ADD) children and eight Normally Achieving Controls (NAC) were assessed using dynamic EEG measures. Results are reported for the tasks of baseline (eyes open), reading, and drawing as recorded from FZ, CZ, PZ, C3, and C4. Significant amplitude differences between the groups were demonstrated in the theta band (4-8 hertz) during all tasks and for all sites. Amplitude differences in the beta band (12-20 hertz) were negligible. Differences between groups expressed as a ratio of theta/beta revealed significant differences mainly in the parietal region for on-task conditions. These results are discussed in relation to EEG neuro-feedback training paradigms and the importance of establishing normative "on-task" EEG values.
本研究旨在复制先前描述行为不同组之间动态脑电图差异的研究。本研究旨在作为一个参考点，其他研究人员可以从中继续确定“任务执行中”行为的脑电图相关性。使用动态脑电图测量方法对八名注意力缺陷障碍（ADD）儿童和八名正常发育对照组（NAC）进行了评估。报告了从FZ、CZ、PZ、C3和C4记录的基线（睁眼）、阅读和绘画任务的结果。在所有任务和所有部位中，两组之间在θ波段（4-8赫兹）表现出显著的振幅差异。β波段（12-20赫兹）的振幅差异可忽略不计。以θ/β比值表示的组间差异主要在顶叶区域的任务执行条件下显示出显著差异。结合脑电图神经反馈训练范式以及建立规范性“任务执行中”脑电图值的重要性对这些结果进行了讨论。
