Finally, tau has been identified as a susceptibility factor for Parkinson's [45] and PET scan analysis of Parkinsonian tauopathies such as progressive supranuclear palsy, corticobasal degeneration, frontotemporal dementia and parkinsonism linked to chromosome 17 have revealed that there is a propensity of brain areas to bind to pathological tau [373]. This evidence concerns the gene MAPT and frontotemporal dementia.