Event-Related Alpha-Band Power Changes During Self-reflection and Working Memory Tasks in Healthy Individuals.
Event-Related Alpha-Band Power Changes During Self-reflection and Working Memory Tasks in Healthy Individuals.
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DOI：
10.3389/fnhum.2020.570279
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发表时间：
2020
影响因子：
2.9
通讯作者：
Matsuo K
中科院分区：
文献类型：
--
作者：
Matsuoka T;Shimode T;Ota T;Matsuo K
注意力控制功能障碍是在精神障碍患者中观察到的。然而，目前还没有建立神经生理学方法来评估这类患者的注意力。我们在一项初步研究中发现，健康受试者在自我反思（SR）和工作记忆（WM）任务中诱发内部和外部注意事件相关的α波段功率变化的任务中α波段功率存在差异。在这项研究中，我们的目的是阐明事件相关的α-波段功率变化的健康受试者在任务，解决了以前的研究的不足。对16名健康志愿者进行了事件相关功率（ERpow）的检测。结果表明，在目标刺激和命令刺激之间的一段时间内，WM和SR任务之间的顶枕区在8，10和12 Hz的α-波段ERpow的差异，其中被试从外部注意切换到内部注意根据SR任务，并保持在外部注意根据WM任务。结果表明，α-波段ERpow在这方面是与方向的注意力在认知刺激的反应，这表明ERpow在这两个任务的结果可能有助于澄清的病理生理功能障碍的变化，在精神疾病患者的注意力。
Dysfunctional attentional control is observed in patients with mental disorders. However, there is no established neurophysiological method to assess attention in such patients. We showed a discrepancy in alpha-band power in the tasks that evoked internal and external attention event-related alpha-band power changes in healthy subjects during self-reflection (SR) and working memory (WM) tasks in a preliminary study. In this study, we aimed at elucidating event-related alpha-band power changes in healthy subjects during the tasks, addressing the shortcomings of the previous study. Sixteen healthy volunteers were examined for the event-related power (ERpow) change during the tasks. The results demonstrated the discrepancy of alpha-band ERpow at 8, 10, and 12 Hz in the parieto-occipital area between the WM and SR tasks for a period between a target stimulus and a command stimulus, where a participant switched to internal attention from external attention according to the SR task and remained at external attention according to the WM task. The results suggest that alpha-band ERpow in this area is associated with the direction of attention in response to cognitive stimuli, indicating that the findings of ERpow during the two tasks would potentially aid in the clarification of the pathophysiology of the dysfunctional change in attention in patients with psychiatric disorders.
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作者：
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DOI：
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发表时间：
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期刊：
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影响因子：
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作者：
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影响因子：
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