Morpho-semantic analysis of ambiguous morphemes in Chinese compound word recognition: An fMRI study

Simin Zhao, Yan Wu*, Yiu Kei TSANG, Xue Sui, Zude Zhu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The present fMRI study examined the neural basis of processing context-supported or -unsupported interpretations of ambiguous morphemes during Chinese compound word reading in a masked priming lexical decision task. Targets were Chinese bimorphemic words that contained ambiguous morphemes. Prime words contained the same ambiguous morphemes with either the same meanings (context-supported interpretation) or different ones (context-unsupported interpretation). Lexical-level semantic sharing and unrelated control conditions were also included. Compared to the unrelated control condition, the context-supported morphemic meaning was associated with increased activity in the left SFG and bilateral MTG, and this priming effect could be dissociated from that of the lexical-level semantic-related condition. In broader brain regions, including the left SFG, bilateral MTG, left STG, right IOG, and left precuneus, the context-unsupported meaning condition showed decreased activity compared with the unrelated control condition. These findings indicate that both the context-supported and -unsupported meanings evoke significant priming effects, however, they differ from each other with different brain basis, providing new insight into the neural substrates of ambiguous morpheme processing.

Original languageEnglish
Article number107862
JournalNeuropsychologia
Volume157
DOIs
Publication statusPublished - 16 Jul 2021

Scopus Subject Areas

  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience
  • Behavioral Neuroscience

User-Defined Keywords

  • Ambiguous morpheme processing
  • Compound word recognition
  • fMRI
  • Morpho-semantics

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