Figure 3. Comparison of neuronal density, proportion and soma size in layer II interneuron subpopulations of three human prefrontal areas 24, 10 and 46 correspond to cortical areas analyzed. PV: PV-positive neurons. CB: CB-positive neurons. CR: CR-positive neurons. Neurons/mm²: neuronal density. % neurons: percentage of neurons of a subpopulation of the total number of interneurons. Soma area µm²: soma size in micrometers². The mean values and the respective standard deviations are shown in the graph. The filled circles, squares and triangles represent discrete values, and continuous and dotted lines show trends of change between cortical areas analyzed.