Correction

Hörning, M., S. Kidoaki, …, K. Yoshikawa, 2012. Rigidity Matching between Cells and the Extracellular Matrix Leads to the Stabilization of Cardiac Conduction. Biophys. J. 102:379–387.

Eq. 1 in the paper of Hoerning et al. should be corrected as

$$F=\frac{2E\tan \alpha }{\pi \left(1-{\mu }^2\right)}{\delta }^2$$ (1)

The same mistake on the factor is found in the quoted paper (1). Through this correction, all measured substrate and cell rigidities should be increased by a factor 3. Thus, the cell rigidity changes to (13.2+/− 1.8) kPa. This error does not affect the results or the conclusions that were stated in the manuscript.