Second language acquisition and first language loss in adult early bilinguals: Exploring some differences and similarities

TL;DR: The acquisition of heritage languages has become a central focus of study within linguistics and applied linguistics as discussed by the authors, focusing on the grammatical development of the heritage language and the language learning trajectory of heritage speakers.

TL;DR: The authors examine several important grammatical phenomena from the standpoint of their representation in heritage languages, including case, aspect, and other interface phenomena, and discuss how the questions raised by data from heritage speakers could fruitfully shed light on cur- rent debates about how language works and how it is acquired under different conditions.

TL;DR: This article investigated argument expression in adult simultaneous bilinguals who are heritage speakers of Spanish, because in this language subjects, direct, and indirect objects are regulated by syntactic, pragmatic and semantic factors.

TL;DR: This book provides a pioneering introduction to heritage languages and their speakers, written by one of the founders of this new field, and offers analysis of resilient and vulnerable domains in heritage languages, with a special emphasis on recurrent structural properties that occur across multiple heritage languages.

TL;DR: The authors argued that the best theory for describing this domain is not a traditional system of discrete roles (Agent, Patient, Source, etc.) but a theory in which the only roles are two cluster-concepts called PROTO-AGENT and PROTO -PATIENT, each characterized by a set of verbal entailments: an argument of a verb may bear either of the two proto-roles (or both) to varying degrees, according to the number of entailments of each kind the verb gives it.

TL;DR: The time schemata presupposed by various verbs will appear as important constituents of the concepts that prompt us to use those terms the way the authors consistently do and may be used as models of comparison in exploring and clarifying the behavior of any verb whatever.

TL;DR: This book explains the process of starting with one language and adding another, and the extent of the bilingual mind.

TL;DR: In this paper, the authors give an argument in favor of the advancement analysis of impersonal passives over the demotion analysis, based on the interaction of this phenomenon with an independently motivated hypothesis about linguistic structure, the Unaccusative Hypothesis.