An individual's language can change in the moment due to the topic of conversation and over time because of regional mobility. This paper investigates the relationship between these two types of shifts by asking whether speakers with substantial second dialect exposure change their pronunciation more when the topic changes in a regionally meaningful way compared to speakers with less exposure. Specifically, topic-based shifts on three phonological variables that differ between British and US English are investigated in native speakers of both dialects as a function of the migrant status of the speaker. Experience matters in that speakers only shift between variants in their repertoire, and expatriates have acquired some second dialect features that nonmigrants do not have. However, it does not appear that more exposure to, or increased rates of usage of a variant leads to more topic-based shifting toward that variant. These findings, interpreted within the existing literature, suggest that topic-based shifts are driven primarily by stereotypical sociolinguistic representations.

中文翻译：

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方言经验在演讲产生中基于主题的转变中的作用

一个人的语言可能会因谈话主题而改变，而随着时间的推移，由于区域流动性，他们的语言可能会发生变化。本文通过询问与较少接触第二方言的说话者相比，当主题以具有区域意义的方式发生变化时，是否有大量第二方言接触的说话者会更多地改变他们的发音，从而调查这两种类型的转变之间的关系。具体而言，在两种方言的母语人士中调查了英美英语之间不同的三个语音变量的基于主题的变化，作为说话者的移民身份的函数。经验很重要，因为说话者只会在他们的曲目中转换，而外籍人士已经获得了非移民所没有的一些第二方言特征。然而，似乎没有更多的接触或增加费率变体的使用会导致更多基于主题的转向该变体。在现有文献中解释的这些发现表明，基于主题的转变主要是由刻板的社会语言学表征驱动的。