Paper presented at the 1st quarterly meeting of the Korean Educational Psychology Association, Seoul, Korea.

Paper presented at the 4th quarterly meeting of the Korean Educational Psychology Association, Seoul, Korea.

Keynote address delivered at the 2010 bMRI Symposium on Motivation, Seoul, Korea.

Paper presented at the annual meeting of the Society for the Study of Motivation, Chicago, IL.

Paper presented in the annual meeting of the American Educational Research Association, Vancouver, British Columbia, Canada.

Paper presented in the annual meeting of the American Educational Research Association, Vancouver, British Columbia, Canada.

Paper presented at the annual meeting of the Korean Society of Cognitive Science, Seoul, Korea.

Paper presented at the annual meeting of the Korean Society of Cognitive Science, Seoul, Korea

Poster session presented at the annual meeting of the Korean Society of Cognitive Science, Seoul, Korea.

Poster session presented at the annual meeting of the Korean Society of Cognitive Science, Seoul, Korea.