Correction

NEUROBIOLOGY. For the article “Altered emotional and locomotor responses in mice deficient in the transcription factor CREM” by Rafael Maldonado, Claire Smadja, Cristina Mazucchelli, and Paolo Sassone-Corti, which appeared in number 24, November 23, 1999, of Proc. Natl. Acad. Sci. USA (96, 14094–14099), the authors note that the last name of the third author is misspelled and should be Mazzucchelli.