The interpretation of phrase-medial prosodic prominence in Japanese: is it sensitive to visual and discourse context?

Due to the language-specific prosodic architecture, a phrase-medial pitch expansion in Japanese may signal either a narrow contrast or the beginning of a new syntactic phrase. To examine how visual and discourse context affects the tug of war between these two interpretations, three eye-tracking experiments tested the interpretation of a pitch expansion in referential contexts that varied in the plausibility of contrastive interpretation. The results showed that the degree of structural interpretation was inversely related to the plausibility of contrastive interpretation. Although there was no direct evidence of contrastive processing of the pitch prominence, participants responded to the trials with the pitch expansion much slower than to those without the expansion only when the contrastive interpretation of the pitch prominence was contextually infelicitous. These results suggest that the phrase-medial pitch expansion may have been simultaneously processed for contrast and structural disambiguation. However, the task that demanded resolutions of standing referential ambiguities seemed to make the structural disambiguation the best use of the prosodic cue. [ABSTRACT FROM AUTHOR]