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Full-form vs. combinatorial processing of Chinese compound words: Evidence from mismatch negativity

Zou Y, Tsang YK, Shum YH, Tse CY

International journal of psychophysiology : official journal of the International Organization of Psychophysiology, 2023

Abstract

This study examined whether Chinese spoken compound words are processed via full-form access or combination through morphemes by recording mismatch negativity (MMN). MMN has been shown to be larger for linguistic units that involves full-form access (lexical MMN enhancement) and smaller for separate but combinable units (combinatorial MMN reduction). Chinse compound words were compared against pseudocompounds, which do not have full-form representations in the long-term memory and are "illegal" combinations. All stimuli were disyllabic (bimorphemic). Word frequency was manipulated with the prediction that low-frequency compounds are more likely processed combinatorially, while high-frequency ones are more likely accessed in full forms. The results showed that low-frequency words elicited smaller MMNs than pseudocompounds, which supported the prediction of combinatorial processing. However, neither MMN enhancement nor reduction was found for high-frequency words. These results were interpreted within the dual-route model framework that assumes simultaneous access to words and morphemes.

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