The primary goal of this paper is to understand the information structure of right dislocation (RD). I report a variation in RD in Asian languages with regard to the information structural status of the right dislocated elements. The discussion focuses on Alasha, a Mongolic language spoken in Mongolia. Through a comparative perspective on right dislocation, I show that RD languages come in two types: one that allows focused elements to be right dislocated, and one that disallows focused elements to be right dislocated. I argue that Alasha belongs to the former type, and I propose a bi-clausal analysis of Alasha RD, where Focus movement may occur in the second clause. Drawing on these findings, I further argue that the variation in RD is due to the parametric difference on the licensing condition of Focus Projection in Asian languages. Ultimately, the findings of this paper strengthen a non-uniform approach to RD in natural languages in both syntactic structure and information structure, despite their surface similarities.

本文的主要目标是了解右位错（RD）的信息结构。我报告了亚洲语言中关于右错位元素的信息结构状态的 RD 变化。讨论的重点是阿拉莎语，一种在蒙古使用的蒙古语。通过右错位的比较视角，我表明RD语言有两种类型：一种是允许焦点元素右错位，另一种是不允许焦点元素右错位。我认为Alasha属于前一种类型，并且我建议对Alasha RD进行双分句分析，其中焦点运动可能发生在第二个分句中。根据这些发现，我进一步认为 RD 的变化是由于亚洲语言的焦点投影许可条件的参数差异造成的。最终，本文的研究结果强化了自然语言中句法结构和信息结构的非统一研发方法，尽管它们表面上相似。