Introduction. Heretofore, research on optimizing academic performance has suffered from an inability to translate what is known about an individual’s learning behaviors to how effectively they are able to use the critical nodes and hubs in their cerebral cortex for learning. A previous study from our laboratory suggests that lower theta-beta ratios (TBRs) measured by EEG may be associated with higher academic performance in a medical school curriculum. Methods. In this study, we tested the hypothesis that TBR and academic performance may be correlated with EEG coherence, a measure of brain connectivity. We analyzed the interhemispheric coherences of the subjects involved in our prior study. TBR and coherence measurements were made at 19 scalp electrode recording sites and 171 electrode combinations with eyes open and closed (EO, EC). Control data were acquired during a session of acclimation to the research protocol 3 d before an initial examination in anatomy-physiology (control exam) and were repeated five weeks later, 3 d before a second exam covering different anatomy-physiology topics (comparison exam). Results. Between the control and comparison exams, beta coherences increased significantly at the frontal pole, frontal, parietal, midtemporal, posterior temporal, and occipital recording sites under the EO condition and at the inferior frontal, central, midtemporal, and posterior temporal sites under the EC condition. Alpha coherences increased significantly at the same sites and under the same EO/EC conditions as found for the beta coherences. The beta coherences were negatively correlated with the TBR and were positively correlated with the comparison exam score at the midfrontal electrode site (F3-F4) but only under the EO condition. Beta and alpha coherences at the midfrontal, inferior frontal midtemporal, posterior temporal, and occipital sites were also negatively correlated with the average TBR under the EO condition. Conclusions. Lower TBR, an indicator of attentional control, was associated with higher alpha and beta interhemispheric coherences measured with eyes open at sites overlying the frontal, temporal, and occipital cortices. Changes in EEG coherences and TBRs might be useful as neurophysiological measures of neuroplasticity and the efficacy of strategies for preventing academic underachievement and treatments for improving academic performance.

中文翻译：

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阿尔法和贝塔半球间脑电图一致性与注意力控制和学业成绩指数的关联。

介绍。迄今为止，关于优化学习成绩的研究一直受到困扰，无法将个人学习行为的已知信息转化为他们如何有效地利用大脑皮层中的关键节点和中枢进行学习。我们实验室之前的一项研究表明，通过脑电图测量的较低的 θ-β 比值 (TBR) 可能与医学院课程中较高的学业成绩相关。方法。在这项研究中，我们测试了这样的假设：TBR 和学习成绩可能与脑电图一致性（大脑连通性的衡量标准）相关。我们分析了之前研究中涉及的受试者的半球间一致性。TBR 和相干性测量是在 19 个头皮电极记录位点和 171 个睁眼和闭眼电极组合（EO、EC）上进行的。对照数据是在解剖学-生理学初次检查（对照检查）前 3 天的研究方案适应过程中获取的，并在五周后、涵盖不同解剖学-生理学主题的第二次检查前 3 天重复进行（比较检查） 。结果。在对照检查和比较检查之间，EO 条件下额极、额叶、顶叶、颞中、颞后和枕叶记录部位的 β 相干性显着增加，而 EC 条件下额下、中央、颞中和颞后部位的 β 相干性显着增加健康）状况。与 β 相干性相同，在相同的 EO/EC 条件下，α 相干性显着增加。β 相干性与 TBR 呈负相关，与中额叶电极部位（F3-F4）的比较考试分数呈正相关，但仅在 EO 条件下。额中叶、额下颞叶中叶、后颞叶和枕叶部位的 Beta 和 α 相干性也与 EO 条件下的平均 TBR 呈负相关。结论。较低的 TBR（注意力控制指标）与较高的 α 和 β 半球间一致性相关，这些一致性是在额叶、颞叶和枕叶皮质上方的部位睁开眼睛时测得的。脑电图一致性和 TBR 的变化可能有助于神经可塑性的神经生理学测量，以及防止学业成绩不佳的策略和提高学业成绩的治疗的有效性。