Article Information
- Received August 25, 2005
- Revision received November 17, 2005
- Accepted November 18, 2005
- First published January 11, 2006.
- Version of record published January 11, 2006.
Author Information
Author contributions
Disclosures
- Received August 25, 2005.
- Revision received November 17, 2005.
- Accepted November 18, 2005.
This work was supported by National Institutes of Health Grant R01-DA13165 (S.Y.). We thank J. T. Serences, T. Liu, C. E. Connor, A. Shelton, B. Rapp, J. B. Sala, T. Brawner, and K. Kahl for comments, advice, and assistance.
Correspondence should be addressed to Dr. Sarah Shomstein, Department of Psychology, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213. E-mail: shomstein{at}cmu.edu.
DOI:10.1523/JNEUROSCI.4408-05.2006
Copyright © 2006 Society for Neuroscience 0270-6474/06/260435-05$15.00/0
aBecause the baseline for these plots is the mean of the signal in the 6 s preceding the target event and because, during the course of a run, this interval contained both hold and shift events, it cannot be interpreted as a “neutral” baseline state. Therefore, the changes in activity after shift and hold events can only be understood in relative terms (i.e., that shift events evoke a greater response in these areas than hold events).
