Department of Speech and Language Therapy, Faculty of Health Sciences, Izmir Bakırçay University, 35660, Izmir, Turkey.
Department of Neurosciences, Institute of Health Sciences, Dokuz Eylül University, 35340, Izmir, Turkey.
J Psycholinguist Res. 2022 Dec;51(6):1431-1451. doi: 10.1007/s10936-022-09907-2. Epub 2022 Aug 9.
Semantic priming in Turkish was examined in 36 right-handed healthy participants in a delayed lexical decision task via taxonomic relations using EEG. Prime-target relations included related- unrelated- and pseudo-words. Taxonomically related words at long stimulus onset asynchrony (SOA) were shown to modulate N400 and late positive component (LPC) amplitudes. N400 semantic priming effect in the time window of 300-500 ms was the largest for pseudo-words, intermediate for semantically-unrelated targets, and smallest for semantically-related targets as a reflection of lexical-semantic retrieval. This finding contributes to the ERP literature showing how remarkably universal the N400 brain potential is, with similar effects across languages and orthography. The ERP data also revealed different influences of related, unrelated, and pseudo-word conditions on the amplitude of the LPC. Attention scores and mean LPC amplitudes of related words in parietal region showed a moderate correlation, indicating LPC may be related to "relationship-detection process".
采用事件相关电位技术（EEG），通过语义类别关系，在 36 名右利手健康被试者延迟词汇判断任务中，对土耳其语的语义启动进行了研究。启动刺激与靶刺激之间的关系包括相关、不相关和伪词。在长的刺激呈现时间间隔（SOA）条件下，语义类别相关词会调节 N400 和晚期正成分（LPC）的幅度。N400 语义启动效应在 300-500ms 的时间窗中，对于伪词最大，语义不相关的靶刺激次之，语义相关的靶刺激最小，反映了词汇语义提取。这一发现丰富了 ERP 文献，表明 N400 脑电位在不同语言和正字法中具有多么显著的普遍性，具有相似的效应。ERP 数据还揭示了相关、不相关和伪词条件对 LPC 幅度的不同影响。顶叶区域相关词的注意分数和平均 LPC 幅度呈中度相关，表明 LPC 可能与“关系检测过程”有关。
