Erratum to: Exp Brain Res (2006) 174:240–255 DOI 10.1007/s00221-006-0456-0

In the published original version of the article, two equations have been inverted.

The equation on page 243 (left column, section “Data analysis”) should appear on page 247 (left column, section “Behavioral estimate of reaching movement cancellation”) and vice versa.