Correction: Unilateral Left-Hand Contractions Produce Widespread Depression of Cortical Activity after Their Execution.

Reference 1. Cross-Villasana F, Gröpel P, Doppelmayr M, Beckmann J (2015) Unilateral Left-Hand Contractions ProduceWidespread Depression of Cortical Activity after Their Execution. PLoS ONE 10(12): e0145867. doi:10.1371/journal.pone.0145867 PMID: 26709832 Fig 2. Spectral plot of the last second during contractions (black), first second after contractions (red), and their difference (gray). A) For the left hand-block. B) For the right hand-block. The gray rectangle highlights the upper alpha band. Accompanying difference maps illustrate the difference over the scalp when subtracting the last second of contractions, from the first second after contractions.