Myelin maturation failure and oligodendrocyte precursor loss underlie default mode network disruption in a humanized APP knock-in model of Alzheimer’s disease
Alzheimer’s disease disrupts large-scale brain networks before cognitive symptoms emerge, yet the mechanisms underlying this progression remain unclear. In humans, default mode network (DMN) connectivity follows a biphasic trajectory, with a transition from hypersynchrony to hyposynchrony associated with increasing amy...