Multiple studies have examined associations between sleep and cognition in older adults,
but a majority of these depend on self-reports on sleep and utilize cognitive tests that assess …

Increasingly studied in a systematic manner since the 1970s, the cognitive processes of the
brain taking place during sleeping periods remain an important object of scrutiny in the …

How do we build up our knowledge of the world over time? Many theories of memory
formation and consolidation have posited that the hippocampus stores new information, then …

Cognitive impairments are described in central disorders of hypersomnolence (CDH), but
studies remain very limited and largely focused on narcolepsy type 1 (NT1). The precise …

REM sleep is critical for memory, emotion, and cognition. Manipulating brain activity during
REM could improve our understanding of its function and benefits. Earlier studies have …

Understanding the function of sleep requires studying the dynamics of brain activity across
whole-night sleep and their transitions. However, current gold standard polysomnography …

Background: Caffeine is a well-known psychostimulant reputed to alleviate the deleterious
effects of sleep deprivation. Nevertheless, caffeine can alter sleep duration and quality …

The transition from wakefulness to sleep is a progressive process that is reflected in the
gradual loss of responsiveness, an alteration of cognitive functions, and a drastic shift in …

ADHD has been associated with cortico-striatal dysfunction that may lead to procedural
memory abnormalities. Sleep plays a critical role in consolidating procedural memories, and …

Sleep spindles are a signature feature of non-REM (NREM) sleep, with demonstrated
relationships to sleep maintenance and learning and memory. Because PTSD is …