Hofmann, M. J., Herrmann, M. J., Dan, I., Obrig, H., Conrad, M., Kuchinke, L., et al. (2008). Differential activation of frontal and parietal regions during visual word recognition: An optical topography study. NeuroImage, 40(3), 1340-1349. doi:10.1016/j.neuroimage.2007.12.037.