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On the proper treatment of tonal chain-shifts

2004

This paper proposes that certain attested instances of tonal chain-shifts in Taiwanese (and other Southern Min dialects) can be captured in OT by appropriate ranking of phonetically-motivated constraints and anti-merger constraints militating against syncretism in a tonal paradigm (Padgett, 2003). By scrutinizing previous psycholinguistic studies, I point out the fact that tones that “trigger” chain-shifts are much more prone to tone sandhi in the experimental settings. The alleged “semi-productivity” of Taiwanese tone sandhi is attributed to the subjects’ difficulties of doing computation over an unfamiliar set of candidates. In addition, an exemplar-based or analogi- cal approach can be rejected because the asymmetrical distributions of error rates for each tone are arguably phonetically-grounded. Based on evidence from various angles, I argue that Taiwanese tonal chain-shifts are intricately constructed in the following way: these alternations are motivated by (i) phonetically-driven constraints, (ii) formed by the requirement of neutral- ization avoidance, and (iii) encoded in the grammar by Strong Lexicon Op- timization (Sanders, 2003).