… , including shorter sleep duration and fragmented sleep, 4–7 … of sleep on cognitive decline
and/or Alzheimer's disease meta-… alterations, nocturnal sleep fragmentation, decreased sleep …

… We assessed sleep fragmentation by actigraphy and related this to cognitive function, to …
Greater sleep fragmentation was associated with higher neocortical expression of genes …

… factor for Alzheimer's disease. However, no study has assessed the relationships … in sleep
quality have been related to cognitive decline and increased risk of developing dementia [2], [3…

… domains (such as daytime dysfunction, fragmentation, latency and subjective quality). As for
the subtypes of … . Self-Reported sleep disturbance is associated with Alzheimer's disease …

… sleep, including sleep fragmentation, abnormal sleep duration, and sleep disorders, as risk
factors for dementia. … —namely Alzheimer's disease (AD) and Parkinson's disease (PD). We …

… and MCI and had a faster cognitive decline. … In the model that includes both sleep
fragmentation index and α, the effect of sleep fragmentation index on incident Alzheimer's dementia …

… with higher levels of sleep fragmentation showed a stronger association of APOE ɛ4 genotype
with cognitive decline, postmortem density of neurofibrillary tangles, and incident AD [32]. …

… We also show decreased sleep fragmentation and longer total sleep time was associated
with reports of more decline over time, and greater seriousness attributed to everyday memory …

… to their sleep (one with a propensity to deepen the sleep and … the lighter sleep stage), we
hypothesized that the cognitive decline … In fact, sleep disturbances such as sleep fragmentation, …

… found no link between insomnia and dementia or Alzheimer's disease. Surprisingly, in the
latter, fragmented sleep was associated with lower dementia risk and better cognition scores. …