Individual A_V distributions, on a spaxel-by-spaxel basis, of the galaxies of the sample ordered by increasing L_IR. The extremes of the distributions are the 5th and 95th percentiles (P₅ and P₉₅). The boxes illustrate the interquartile range, whereas the horizontal blue and red lines correspond to the median and the weighted mean of the distribution, respectively. The measurements of the nuclear extinction are plotted as black diamonds. The total A_V distributions for LIRGs and ULIRGs are shown on the right-hand side of the plot.