When parsing and interpretation misalign: A case of WH-scope ambiguity in Mandarin

A large amount of sentence-processing work has focused on revealing how the parser incrementally integrates each incoming word into the current linguistic representation. It is often explicitly or implicitly assumed that the structure endorsed by the parser should determine the ultimate interpretation of the sentence. The current study investigates whether the interpretive bias in sentence comprehension necessarily tracks the parsing bias. Our case study concerns the locality bias in nonlocal dependencies, specifically Mandarin wh-in-situ scope dependencies. Our findings suggest a misalignment between parsing and interpretative decisions at the global level. In particular, for Mandarin wh-in-situ constructions that involve scope ambiguity, there is a locality bias in parsing, but an antilocality bias in interpretation. Building upon the rational speech act framework, we propose a Bayesian pragmatic analysis to account for these findings. Under our proposal, the seeming conflict between parsing and interpretation will ultimately disappear because parsing preferences will be naturally embedded under the pragmatic reasoning process to generate the ultimate interpretation. The current study therefore makes novel contributions, both empirically and theoretically, to addressing the broader question about the relationship between parsing and interpretation.