An increasing number of adults learn more than one foreign language simultaneously. While the cognitive benefits of using multiple languages from birth have been studied extensively, little is known about possible cognitive benefits of learning multiple languages simultaneously in adulthood. Among the cognitive abilities which play a role in…

In this article, I argue that first language (L1), second language (L2) and third language (L3) acquisition are fundamentally the same process, based on learning by parsing. Both child and adult learners are sensitive to fine linguistic distinctions, and language development takes place in small steps. While the bulk of the article focuses on…

When natural language input contains grammatical forms that are used probabilistically and inconsistently, learners will sometimes reproduce the inconsistencies; but sometimes they will instead regularize the use of these forms, introducing consistency in the language that was not present in the input. In this paper we ask what produces such…

Compares different approaches to first- and second-language development. It is argued that the observed differences between first- and (adult) second-language acquisition can be accounted for by assuming that adult second-language learners can not use Universal Grammar principles as a learning device in the same way that first-language learners…

Understanding the mechanisms learners use to process target language input is crucial to developing a complete model of both first language (L1) and second language (L2) acquisition. If adult L2 learners are found to process the target language with mechanisms that differ from those used by child L1 learners and adult native speakers, what…

Describes a study done to test the hypothesis that factors that shape children's production of their native language (L1) will also influence adults' pronunciation of sounds in a foreign language (L2). Results confirmed the hypothesis that developmental processes are "reactivated" when adults attempt to produce L2 sounds not found in their L1.…

Examination of existing empirical and theoretical literature suggests there is no conclusive support for the existence of a critical period for human speech learning. Assumption of a critical period may inhibit the search for testable hypotheses concerning observed adult-child differences in second language production. (Author/LMO)

Theories of human cognition and language suggest that there is a gap between the phases of perception and the phases of production of language. Unfortunately, this is often forgotten in language teaching, so that beginners' courses too frequently contain simplified and non-authentic linguistic input to assure that output does not lag too far…

This article discusses second language vocabulary learning strategies and includes an analysis and classification of possible strategies and the report of a study conducted among second language learners in Japan. Research on vocabulary learning strategies is synthesized into two lists of strategies: 14 methods for initial learning of a new word's…