In the article “Synapse-Specific Expression of Functional Presynaptic NMDA Receptors in Rat Somatosensory Cortex” by Daniel J. Brasier and Daniel E. Feldman, which appeared on pages 2199–2211 of the February 27, 2008 issue, there was a labeling error in Figure 5D. The labels “L4-L2/3” and “L2/3-L2/3” were reversed. The corrected Figure 5 is printed here.
