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首页> 美国卫生研究院文献>Frontiers in Behavioral Neuroscience >Cognition Impairment Prior to Errors of Working Memory Based on Event-Related Potential
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Cognition Impairment Prior to Errors of Working Memory Based on Event-Related Potential

机译：基于事件相关电位的工作记忆错误之前的认知障碍

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Cognitive impairment contributes to errors in different tasks. Poor attention and poor cognitive control are the two neural mechanisms for performance errors. A few studies have been conducted on the error mechanism of working memory. It is unclear whether the changes in memory updating, attention, and cognitive control can cause errors and, if so, whether they can be probed at the same time in one single task. Therefore, this study analyzed event-related potentials in a two-back working memory task. A total of 40 male participants finished the task. The differences between the error and the correct trials in amplitudes and latencies of N1, P2, N2, and P3 were analyzed. The P2 and P3 amplitudes decreased significantly in the error trials, while the N2 amplitude increased. The results showed that impaired attention, poor memory updating, and impaired cognitive control were consistently associated with the error in working memory. Furthermore, the results suggested that monitoring the neurophysiological characteristics associated with attention and cognitive control was important for studying the error mechanism and error prediction. The results also suggested that the P3 and N2 amplitudes could be used as indexes for error foreshadowing.
机译：认知障碍会导致不同任务中的错误。注意力不足和认知控制不佳是导致表现错误的两种神经机制。关于工作记忆的错误机制已经进行了一些研究。尚不清楚记忆更新，注意力和认知控制的变化是否会导致错误，如果是，是否会在一项任务中同时发现它们。因此，本研究分析了两向工作记忆任务中与事件相关的电位。共有40位男性参与者完成了任务。分析了N1，P2，N2和P3的幅度和延迟之间的误差与正确试验之间的差异。在误差试验中，P2和P3幅度显着下降，而N2幅度增加。结果表明，注意力不集中，记忆更新不佳和认知控制受损一直与工作记忆错误有关。此外，结果表明，监测与注意力和认知控制有关的神经生理学特征对于研究错误机制和错误预测很重要。结果还表明，P3和N2幅度可用作误差预埋的指标。

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