FOS and hepatocellular carcinoma: Dentate Gyrus (DG). The estimated number of c-Fos-positive cells per 100 μm3 (seeDataset 4) in the DG (quantified inFigure 4A; representative images from rats trained on the MWM shown inFigure 5 and for groups HCC and ONL inSupplemental Figure S2 andSupplemental Figure S3) was analyzed using a 3×3 univariate ANOVA (age (PND16, PND18, PND20) and training history (HCC, ONL, MWM) as the fixed factors).