Correction

In the article “Learning of Visuomotor Transformations for Vectorial Planning of Reaching Trajectories,” by John W. Krakauer, Zachary M. Pine, Maria-Felice Ghilardi, and Claude Ghez, which appeared on pages 8916–8924 of the December 1, 2000 issue, erroneous funding information was given. The correct information is as follows: “The work was supported by National Institutes of Health Grants NS 22715, NS 02138, and NS 01961.” Also, for the last sentence on page 8922 and continuing on page 8923, “perceptrons” rather than “perceptions” was meant. Finally, for Figure 5, “Target direction” should be the label on the abscissa, rather than in the middle of the figure.