Speech is extremely variable along many different dimensions. One source of variability listeners often encounter is accented speech, in which phonological units can systematically differ from the listener's native categories. This dissertation presents five experiments testing how listeners adapt to accent-based phonological variability,…

Many studies evidence the flexibility of speech perception in the first language (L1), which allows rapid adaptation to unfamiliar foreign accents. Two influential studies by Bradlow and Bent (2008) and a follow-up study by Baese-Berk et al. (2013) found that increased variability as a function of the number of talkers and accents facilitated the…

Spoken words vary phonetically along a number of dimensions, such as duration, pitch, and vowel quality. Much of this variation is associated with social factors like the dialect, age, or gender of the speaker -- a type of variation termed 'socio-indexical'. Traditional theories of speech perception have seen this socio-indexical variation as a…

As English becomes an established lingua franca in the ASEAN region, what should be the pedagogical approach to oral skills and pronunciation teaching in the region? Should teachers target common features and patterns developing in ASEAN English or target more "Western" pronunciation? This study strives to balance the discussion of the…

A study of dialectal variation in Mexican Sign Language (MSL), the primary language for a large segment of Mexico's deaf community, is presented. Signs used by nine different sources representing various locations, ages, and social groups are compared. The first section reviews a number of previous informal assessments of dialectal variation in…

The present work is divided into two parts. Part I provides a general orientation to the material for both linguists and non-linguists. Part II contains information about 700 of the world's languages. Chapter 1 presents a few of the essentials about language and languages for non-linguists. Chapter 2 provides a brief explanation of how the data…

The Pacific area is generally acknowledged to manifest great linguistic diversity. Such diversity is generally assumed to be dysfunctional, an obstacle to efficient functioning of society. Such diversity must, however, have its functions at least in the circumstances in which it arose. It is also generally assumed that such diversity is the result…