PT - JOURNAL ARTICLE ED - Maunsell, John TI - Open Choice DP - 2008 Jan 09 TA - The Journal of Neuroscience PG - 337--337 VI - 28 IP - 2 4099 - http://www.jneurosci.org/content/28/2/337.short 4100 - http://www.jneurosci.org/content/28/2/337.full SO - J. Neurosci.2008 Jan 09; 28