Correction for Anna Devor et al., Suppressed Neuronal Activity and Concurrent Arteriolar Vasoconstriction May Explain Negative Blood Oxygenation Level-Dependent Signal

Correction: In the article “Suppressed Neuronal Activity and Concurrent Arteriolar Vasoconstriction May Explain Negative Blood Oxygenation Level-Dependent Signal” by Anna Devor, Peifang Tian, Nozomi Nishimura, Ivan C. Teng, Elizabeth M. C. Hillman, S. N. Narayanan, Istvan Ulbert, David A. Boas, David Kleinfeld, and Anders M. Dale, which appeared on pages 4452–4459 of the April 18, 2007 issue, there were two errors. In Fig 1A, “time = 0” corresponds to “0.6 s before the stimulus onset,” and in Fig 1B, the arrow also corresponds to “0.6 s before the stimulus onset,” not “the stimulus onset.” In the Results, the second to last sentence reads “The best fit was obtained using t₀ = 0.6 s, τ_D = 0.1 s, and τ_C = 1.4 s.” However, it should have read “τ_D = 1 s.” These corrections do not affect any of the conclusions in the paper.