Assessing the utility of frequency tagging for tracking memory-based reactivation of word representations.
Assessing the utility of frequency tagging for tracking memory-based reactivation of word representations.
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DOI：
10.1038/s41598-018-26091-3
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发表时间：
2018-05-21
影响因子：
4.6
通讯作者：
Schoffelen JM
中科院分区：
文献类型：
--
作者：
Lewis AG;Schriefers H;Bastiaansen M;Schoffelen JM
恢复记忆相关的神经活动测量具有较高的时间精度，可能提供了一个有用的指标，实时监测的时间激活的记忆内容在认知加工。这种指数的效用扩展到任何情况下，其中一个感兴趣的激活不同来源的信息在内存中的（相对）时间，其中一个范例的情况下，跟踪词汇激活在语言处理。这种方法的关键是记忆恢复效果是强大的，所以他们的缺席（平均）明确表示没有词汇激活。我们使用脑电图测试的鲁棒性，随后的记忆发现，涉及恢复特定频率的夹带振荡脑活动在随后的识别。参与者学习了以6或15 Hz闪烁的背景上呈现的单词列表，以引起稳态大脑反应。随后呈现在一个非闪烁的背景上，被正确识别为以前看到的目标词在两个夹带频率表现出恢复效果。然而，这些统计推断的可靠性严重依赖于用于多重比较校正的方法。我们的结论是，效果是不够强大，可以作为一个可靠的指标词汇激活在语言处理。
Reinstatement of memory-related neural activity measured with high temporal precision potentially provides a useful index for real-time monitoring of the timing of activation of memory content during cognitive processing. The utility of such an index extends to any situation where one is interested in the (relative) timing of activation of different sources of information in memory, a paradigm case of which is tracking lexical activation during language processing. Essential for this approach is that memory reinstatement effects are robust, so that their absence (in the average) definitively indicates that no lexical activation is present. We used electroencephalography to test the robustness of a reported subsequent memory finding involving reinstatement of frequency-specific entrained oscillatory brain activity during subsequent recognition. Participants learned lists of words presented on a background flickering at either 6 or 15 Hz to entrain a steady-state brain response. Target words subsequently presented on a non-flickering background that were correctly identified as previously seen exhibited reinstatement effects at both entrainment frequencies. Reliability of these statistical inferences was however critically dependent on the approach used for multiple comparisons correction. We conclude that effects are not robust enough to be used as a reliable index of lexical activation during language processing.
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影响因子：
3
作者：
Bastos AM;Schoffelen JM
通讯作者：
Schoffelen JM
影响因子：
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作者：
Oostenveld R;Fries P;Maris E;Schoffelen JM
通讯作者：
Schoffelen JM
影响因子：
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作者：
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通讯作者：
Norman, Kenneth A.
影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
Norman, KA