Does adding an accent mark hinder lexical access? Evidence from Spanish

Abstract

Recent research has shown that omitting the accent mark in a Spanish word, which is a language in which these diacritics only indicate lexical stress, does not cause a delay in lexical access (e.g., cárcel [prison] ≈ carcel; cárcel-CÁRCEL ≈ carcel-CÁRCEL). This pattern has been interpreted as accented and nonaccented vowels sharing the abstract letter representations in Spanish. However, adding an accent mark to a nonaccented Spanish word appears to produce a reading cost in masked priming paradigms (e.g., féliz-FELIZ [happy] > feliz-FELIZ). We examined whether adding an accent mark to a non accented Spanish word slows down lexical access in two semantic categorization experiments to solve this puzzle. We added an accent mark either on the stressed syllable (Experiment 1, e.g., cébra for the word cebra [zebra]) or an unstressed syllable (Experiment 2, e.g., cebrá). While effect sizes were small in magnitude, adding an accent mark produced a cost relative to the intact words, especially when the accent mark was added on an unstressed syllable (cebrá > cebra). These findings favor the view that letter identity and (to a lesser extent) accent mark information are encoded during word recognition in Spanish. We also examined the practical implications of these results.