1. Aknowledgements; 2. Introduction; 3. Psycholinguistic studies; 4. 1. Empirical approaches to the study of code-switching in sentential contexts (by Altarriba, Jeanette); 5. 2. Language selection and performance optimisation in multilinguals (by Meuter, Renata F.I.); 6. 3. The neurocognition of switching between languages: A review of electrophysiological studies (by Hell, Janet G. van); 7. 4. Sources of triggering in code switching (by Bot, Kees de); 8. 5. Triggered code switching: Evidence from Dutch - English and Russian - English bilinguals (by Broersma, Mirjam); 9. 6. Two speakers, one dialogue: An interactive alignment perspective on code-switching in bilingual speakers (by Kootstra, Gerrit Jan); 10. 7. Language interaction as a window into bilingual cognitive architecture (by Marian, Viorica); 11. Sociolinguistic and linguistic studies; 12. 8. Trying to hit a moving target: On the sociophonetics of code-switching (by Bullock, Barbara E.); 13. 9. Which language? Participation potentials across lexical categories in code-switching (by Jake, Janice L.); 14. 10. Adjectives and word order: A focus on Italian-German code-switching (by Cantone, Katja Francesca); 15. 11. On the unity of contact phenomena and their underlying mechanisms: The case of borrowing (by Winford, Donald); 16. 12. Codeswitching as one piece of the puzzle of language change: The case of Turkish yapmak (by Backus, Ad); 17. 13. Transfer and code-switching: Separate territories but common concerns on the border (by Odlin, Terence); 18. Author index; 19. Index of terms