The independent effects of prosodic structure and information status on tonal coarticulation
Various factors constrain the production of a sequence of lexical tones. Thisstudy aims to test the joint influence of three important ones: tonal coarticulation,prosodic structure, and information status. F0 realization of rising andfalling tones, in both compatible and conflicting tonal contexts, was comparedacross two prosodic conditions (prosodic headedness and boundary depth) andtwo focus conditions (with vs. without narrow focus). Results show that in conflictingtonal contexts, where salient coarticulatory adjustment of F0 trajectoriesis to be expected, both prosodic structure and information status influencedthe implementation of F0 slopes, albeit in different ways. These findings lendsupport to the proposal that information status and prosodic structure exertindependent prosodic strengthening effects on tonal implementation.