Erratum: In the article “Heterogenous Population Coding of a Short-Term Memory and Decision Task” by Joseph K. Jun, Paul Miller, Adrián Hernández, Antonio Zainos, Luis Lemus, Carlos D. Brody, and Ranulfo Romo, which appeared on pages 916–929 of the January 20, 2010 issue, there was an error in the Results, on page 923. “Two competing computational models, by distinct subsets of the current authors, have proposed… should have appeared as “Two competing computational models, by distinct subsets of the current authors with their respective collaborators Xiao-Jing Wang and Christian Machens, have proposed…