Universiteit Leiden

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Keiko Yoshioka


Dr. K. Yoshioka
+31 71 527 2553

Keiko Yoshioka is a Lecturer at the Leiden University Institute for Area Studies.

More information about Keiko Yoshioka


Field of interest
My research interests focus on the psychology of second language acquisition. I am particularly interested in how the knowledge of learners’ L1 (mother tongue) and L2 (the second, third etc. language(s)) possibly interact in various L2 situations. I adopt an interdisciplinary approach (linguistic and psychological), and analyze speech as well as gestures which co-occur with speech. The domains of language use that I am interested are those of space and time. I am also interested in language pedagogy with a specific focus on Japanese as a second language.

PhD University of Groningen, the Netherlands. Dissertation title: “Linguistic and gestural introduction and tracking of referents in L1 and L2 discourse”, completed October 2005.



PhD Groningen University, Groningen, the Netherlands. Area of concentration: Second language acquisition, gesture studies and Japanese linguistics.

MA Department of Foreign Languages, Eastern Michigan University, Michigan, U.S.A. Area of concentration: Second language acquisition, teaching English as a second language (TESOL).

BA Department of English Language Studies, Sophia University, Tokyo, Japan.


Key publications

Selected work
(in print) (with Beryl Hilberink-Schulpen). The role of grammar in the conceptualization of ‘progression’: A comparative analysis of Dutch and Japanese event descriptions. In Filipović, Luna and Kasia M. Jaszczolt (Eds.), Space and time across languages and cultures. Cambridge: John Benjamins.

2009. Dainigengo shuutoku kenkyu ni okeru gesuchaa kenkyu (Gesture studies in SLA research). Acquisition of Japanese as a Second Language (in Japanese), 12: 127-144.

2008. Gesture and information structure in L2 discourse, Gesture 8(2): 236-255.


  • Faculty of Humanities
  • Leiden Institute for Area Studies
  • SAS Japan

Work address

Matthias de Vrieshof
Matthias de Vrieshof 1
2311 BZ Leiden
Room number 1.04b


No relevant ancillary activities

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