In line with these results, reduced brain connectivity within the left-sided frontoparietal (i.e., left precuneus) and the ventral salience (i.e., middle frontal gyrus) networks, whose involvement is typical of GRN-related FTD [37,38], was found at resting-state functional magnetic resonance imaging in non-demented GRN carriers [39]. This evidence concerns the gene GRN and frontotemporal dementia.