Article Information
- Received June 21, 2002
- Revision received January 10, 2003
- Accepted January 21, 2003
- First published April 1, 2003.
- Version of record published April 1, 2003.
Author Information
Author contributions
Disclosures
- Received June 21, 2002.
- Revision received January 10, 2003.
- Accepted January 21, 2003.
This research was supported in part by a grant from the United States–Israel Binational Science Foundation and a grant from the Israeli Science Foundation. I.S. was supported by the Israel Science Foundation and the Office of Naval Research. We gratefully acknowledge useful correspondence with Michael Shadlen. We thank Carl van Vreeswijk for helpful discussions, particularly for suggesting the calculation that appears in . H.S. gratefully acknowledges helpful discussions with Daniel D. Lee.
Correspondence should be addressed to Prof. Haim Sompolinsky, Racah Institute of Physics, Hebrew University, Jerusalem 91904, Israel. E-mail: haim{at}fiz.huji.ac.il.
V. Litvak's present address: Department of Bio-Medical Engineering, Technion–Israel Institute of Technology, Technicon City, Haifa 32000, Israel.
