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The N250 event-related potential as an index of face familiarity: a replication study
Royal Society Open Science ( IF 3.5 ) Pub Date : 2021-06-02 , DOI: 10.1098/rsos.202356
Werner Sommer 1 , Katarzyna Stapor 2 , Grzegorz Kończak 3 , Krzysztof Kotowski 2 , Piotr Fabian 4 , Jeremi Ochab 5 , Anna Bereś 6 , Grażyna Ślusarczyk 7
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The neural correlates of face individuation—the acquisition of memory representations for novel faces—have been studied only in coarse detail and disregarding individual differences between learners. In their seminal study, Tanaka et al. (Tanaka et al. 2006 J. Cogn. Neurosci.18, 1488–1497. (doi:10.1162/jocn.2006.18.9.1488)) required the identification of a particular novel face across 70 trials and found that the N250 component in the EEG event-related potentials became more negative from the first to the second half of the experiment, where it reached a similar amplitude as a well-known face. We were unable to directly replicate this finding in our study when we used the original split of trials. However, when we applied a different split of trials we observed very similar changes in N250 amplitude. We conclude that the N250 component is indeed sensitive to the build-up of a robust representation of a face in memory; the time course of this process appears to vary as a function of variables that may be determined in future research.



中文翻译:

N250 事件相关电位作为面孔熟悉度的指标:一项重复研究

面部个性化的神经相关性——新面孔的记忆表征的获得——仅进行了粗略的细节研究,而忽略了学习者之间的个体差异。在他们开创性的研究中,Tanaka等人。(Tanaka et al. 2006 J. Cogn. Neurosci. 18, 1488–1497。(doi:10.1162/jocn.2006.18.9.1488)) 要求在 70 次试验中识别特定的新面孔,并发现 EEG 事件相关电位中的 N250 成分从实验的前半部分变得更加负,它达到了与众所周知的面孔相似的幅度。当我们使用最初的试验分割时,我们无法在我们的研究中直接复制这一发现。然而,当我们应用不同的试验分割时,我们观察到 N250 振幅的非常相似的变化。我们得出的结论是,N250 组件确实对记忆中人脸的鲁棒表示的建立很敏感;这一过程的时间进程似乎随着未来研究中可能确定的变量而变化。

更新日期:2021-06-02
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