Functional and structural connectivity measures, assessed by means of functional and diffusion MRI, are emerging as potential intermediate biomarkers for Alzheimer disease and other neurodegenerative disorders. In this article, Pievani et al. evaluate the evidence that connectivity biomarkers are associated downstream with clinical phenotypes and topographic brain imaging markers of neurodegeneration, and upstream with molecular determinants of neurodegeneration and susceptibility genes.
- Michela Pievani
- Nicola Filippini
- Giovanni B. Frisoni
