G Representative images of 4-week-old newborn granule neurons of WT and Tau-/- mice infected by a PSD95-GFP-expressing retrovirus and their corresponding high-power magnifications showing PSDs (green).H-IQuantification of the number of PSDs/µm (H) and PSD area (I) in each dendritic branching order of 4-week-old newborn granule neurons in WT and Tau-/- mice. 