This Special Issue of "Language Learning" presents an interdisciplinary state-of-the-art overview of current approaches to linguistic relativity. It contains empirical and theoretical studies and reflections on linguistic relativity from a variety of perspectives, such as associative learning, conceptual transfer, multilingual awareness,…

If first language is rational in the sense that acquisition produces an end-state model of language that is a proper reflection of input and that optimally prepares speakers for comprehension and production, second language is usually not. This paper considers the apparent irrationalities of L2 acquisition, that is the shortcomings where input…

This descriptive study analyzed the emergence of the imperfect in the written production of 30 beginning learners of Spanish. The analysis focused on the use of the imperfect and the morphological marking of state verbs. The results follow the patterns predicted by the aspect hypothesis (Andersen and Shirai, 1994), and support some refinements of…