FTLD-tau includes the following tauopathies (Figures 2A–D): Pick's disease (PiD), corticobasal degeneration (CBD), progressive supranuclear palsy (PSP), FTD and parkinsonism linked to chromosome 17 (pathogenic MAPT mutations; FTDP-17), and unclassifiable tauopathies (Mackenzie et al., 2010). Here, MAPT is linked to red-green color blindness.