Runnqvist, ElinStrijkers, KristofSadat Schaffai, Jasmin, 1982-Costa, Albert, 1970-2016-02-152016-02-152011Runnqvist E, Strijkers K, Sadat J, Costa A. On the temporal and functional origin of L2 disadvantages in speech production: a critical review. Front Psychol. 2011;379(2):1-8. DOI: 10.3389/fpsyg.2011.00379.1664-1078http://hdl.handle.net/10230/25822Despite a large amount of psycholinguistic research devoted to the issue of processing differences between a first and a second language, there is no consensus regarding the locus where these emerge or the mechanism behind them. The aim of this article is to briefly examine both the behavioral and neuroscientific evidence in order to critically assess three hypotheses that have been put forward in the literature to explain such differences: the weaker links, executive control, and post-lexical accounts. We conclude that (a) while all stages of processing are likely to be slowed down when speaking in an L2 compared to an L1, the differences seem to originate at a lexical stage; and (b) frequency of use seems to be the variable mainly responsible for these bilingual processing disadvantages.application/pdfeng© 2011 Runnqvist, Strijkers, Sadat and Costa./nThis is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited.info:eu-repo/semantics/articlehttp://dx.doi.org/10.3389/fpsyg.2011.00379Second language speech productionBilingual disadvantageFirst versus second language processing differencesinfo:eu-repo/semantics/openAccess