Article Information
- Received September 4, 2001
- Revision received December 26, 2001
- Accepted December 26, 2001
- First published March 15, 2002.
- Version of record published March 15, 2002.
Author Information
Author contributions
Disclosures
- Received September 4, 2001.
- Revision received December 26, 2001.
- Accepted December 26, 2001.
This work was supported by a Grant-in-Aid for Scientific Research on Priority Areas (C) of Ministry of Education, Culture, Sports, Science and Technology, Core Research for Evolutional Science and Technology of Japan Science and Technology Corporation, and Japan Society for the Promotion of Science Research for the Future program. We thank Johan Lauwereyns, Shunsuke Kobayashi, Yoriko Takikawa, Reiko Kawagoe, Hiro Nakahara, and Hideaki Itoh for helpful comments, Makoto Kato and Brian Coe for designing the computer programs, and Masashi Koizumi for technical support.
Correspondence should be addressed to Okihide Hikosaka, Laboratory of Sensorimotor Research, National Eye Institute, National Institutes of Health, Building 49, Room 2A50, Bethesda, MD 20892. E-mail:oh{at}lsr.nei.nih.gov.
