processing coordinated structures 1 Processing the NP- versus S-Coordination Ambiguity: Thematic Information Does not Completely Eliminate Processing Difficulty. John C. J. Hoeks Center for Language and Cognition Groningen and BCN NeuroImaging Center, University of Groningen, The Netherlands (j.c.j.hoeks@rug.nl) Petra Hendriks Center for Language and Cognition Groningen, University of Groningen, The Netherlands (p.hendriks@rug.nl) Wietske Vonk Department of Linguistics, University of Nijmegen and Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands (vonk@mpi.nl) Colin M. Brown Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands and Peter Hagoort FC Donders Centre for Cognitive NeuroImaging, Nijmegen, The Netherlands (peter.hagoort@fcdonders.kun.nl) Address correspondence to: Dr. John C.J. Hoeks CLCG / BCN NeuroImaging Center University of Groningen PO Box 716, 9700 AS Groningen, The Netherlands e-mail: j.c.j.hoeks@rug.nl fax: +31 (0)50 3636855