ELiTU&BIMU, Utrecht University, UIL OTS Lexical bottlenecks in the processing of L2 morphosyntax Holger Hopp, Mannheim University In this talk, I explore the extent to which aspects of lexical representations and processing affect grammatical processing in late L2 learners. I will present data from a series of eye tracking experiments in the visual-world paradigm on grammatical gender agreement and in the reading paradigm on syntactic ambiguity resolution. Experiments 1 and 2 show how the nature of lexical (gender) representations affects the online predictive processing of grammatical gender agreement in English-German learners. In the third experiment, I demonstrate how non-native German readers of English with lower degrees of lexical automaticity fail to compute syntactic structure in L2 reading; yet, once speed of lexical access is controlled for, robust and native-like structure-driven parsing preferences surface in adult L2ers, too.