In the article “Right-Left Asymmetries in the Whisking Behavior of Rats Anticipate Head Movements,” by R. Blythe Towal and Mitra J. Hartmann, which appeared on pages 8838–8846 of the August 23, 2006 issue, the abbreviation OP should have been changed to ASYN in the following instances: p 8841, top of second column; p 8842, top of first column; and p 8842, last column of Table 1. In addition, the word “strongly” should have been added to the title of Figure 5. The title should have read as follows: “Velocity asymmetry does not strongly depend on head velocity.”