1 Listening to Accented Speech in a Second Language: First Language and Age of Acquisition Effects Saioa Larraza CNRS. Laboratoire Psychologie de la Perception, UMR 8158 BCBL. Basque Center on Cognition, Brain and Language. Donostia-San Sebastian, Spain Arthur G. Samuel BCBL. Basque Center on Cognition, Brain and Language. Donostia-San Sebastian, Spain IKERBASQUE, Basque Foundation for Science Department of Psychology, Stony Brook University Miren Lourdes Oñederra University of the Basque Country, Vitoria-Gasteiz, Spain Department of Linguistics and Basque Studies Corresponding author: Saioa Larraza Laboratoire Psychologie de la Perception, UMR 8158 CNRS - Université Paris Descartes 45, Rues des Saints-Pères 75006 Paris France Tel. +33(0)1.42.86.43.14 Email: saioa.larraza@parisdescartes.fr Manuscript