T-bar plots showing the averaged values and standard errors of N1 and P2 amplitudes across three tasks. The black, the dotted, and the crossed T-bars denote the responses for the MVP, VOR, and MVR task, respectively. The asterisks indicate the significant difference between conditions.
Chen et al. BMC Neuroscience 2012 13:55 doi:10.1186/1471-2202-13-55