Brain activity during sleep is characterized by circuit-specific oscillations, including slow
waves, spindles and theta waves, which are nested in thalamocortical or hippocampal …

Functional significance of delta oscillations is not fully understood. One way to approach this
question would be from an evolutionary perspective. Delta oscillations dominate the EEG of …

Sleep is essential for both cognition and maintenance of healthy brain function. Slow waves
in neural activity contribute to memory consolidation, whereas cerebrospinal fluid (CSF) …

The mining of huge databases of resting-state brain activity recordings represents state of
the art in the assessment of endogenous neuronal activity—and may be a promising tool in …

The physiological underpinnings of the necessity of sleep remain uncertain. Recent
evidence suggests that sleep increases the convection of cerebrospinal fluid (CSF) and …

Simultaneous EEG-fMRI has developed into a mature measurement technique in the past
25 years. During this time considerable technical and analytical advances have been made …

Isolated reports have long suggested a similarity in content and thought processes across
mind wandering (MW) during waking, and dream mentation during sleep. This overlap has …

Falling asleep is paralleled by a loss of conscious awareness and reduced capacity to
process external stimuli. Little is known on sleep-associated changes of spontaneously …

In humans, some evidence suggests that there are two different types of spindles during
sleep, which differ by their scalp topography and possibly some aspects of their regulation …

Learning and memory for extinction of conditioned fear is a basic mammalian mechanism for
regulating negative emotion. Sleep promotes both the consolidation of memory and the …