N250 effects for letter transpositions depend on lexicality: 'casual' or 'causal'?

被引：37

作者：

Andoni Dunabeitia, Jon ^{[1
]}

Molinaro, Nicola

Laka, Itziar ^{[3
]}

Estevez, Adelina

Carreiras, Manuel ^{[2
]}

机构：

[1] Univ La Laguna, Dept Psicol Cognit, Inst Tecnol Biomed, Tenerife 38205, Spain

[2] Basque Ctr Cognit Brain & Language, Donostia San Sebastian, Spain

[3] Univ Basque Country UPV EHU, Vitoria, Spain

来源：

NEUROREPORT | 2009年 / 20卷 / 04期

关键词：

letter transpositions; N250; orthographic neighbors; visual word recognition; VISUAL WORD RECOGNITION; ORTHOGRAPHIC NEIGHBORHOOD; TIME-COURSE; MODEL; PERCEPTION; WRODS; CODE;

D O I：

10.1097/WNR.0b013e3283249b1c

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We examined the electrophysiological correlates of one of the most influential orthographic effects: the transposedletter-masked priming effect. Transposed-letter nonword-word pairs ('jugde-judge'), as well as transposed-letter word-word pairs ('casual-causal') were included to investigate the influence of prime's lexicality in the transposed-letter effect. The results showed that when compared with the substituted-letter control conditions ('jugde-judge' vs. 'jupte-judge'), transposed-letter primes produced a lower negativity in the N250 component. In contrast, no differences were obtained between the two word-word priming conditions ('casual-causal' vs. 'carnal-causal'). The influence of lexicality in the transposed-letter effect is discussed according to the models of visual word recognition and previous evidence from event-related potentials. NeuroReport 20:381-387 (C) 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins.

引用

页码：381 / 387

页数：7

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