Nature Reviews Neuroscience 11, 329–338 (2010)

On page 331 of the above article, we wrote that: “Surprisingly, these defects could be partially rescued by a single miRNA, miR-340 (Ref. 17).” This should have read: “Surprisingly, these defects could be partially rescued by a single miRNA, miR-430 (Ref. 17).” This was corrected online on 30 April 2010. The authors apologize for this error.