Figure 1From: Density of dopaminergic fibres in the prefrontal cortex of gerbils is sensitive to agingDevelopment of dopaminergic fibre densities in the prefrontal cortex (a). There is a significant decline in the density in 24 months old animals compared to 12 months and 6 months old gerbils. Picture (b) shows the developmental patterns of the prelimbic (PrL) and infralimbic cortex (IL) separately.Back to article page