In a recent series of experiments we recorded the electroencephalogram (EEG) response to
a direct cortical stimulation in humans during wakefulness, NREM sleep, REM sleep and …

Consciousness fades during deep nonrapid eye movement (NREM) sleep early in the night,
yet cortical neurons remain active, keep receiving sensory inputs, and can display patterns …

We recorded the electroencephalographic (EEG) responses evoked by transcranial
magnetic stimulation (TMS) during the first rapid eye movement (REM) sleep episode of the …

We normally assess another individual's level of consciousness based on her or his ability to
interact with the surrounding environment and communicate. Usually, if we observe …

When subjects become unconscious, there is a characteristic change in the way the cerebral
cortex responds to perturbations, as can be assessed using transcranial magnetic …

The occurrence of dynamic changes in spontaneous electroencephalogram (EEG) rhythms
in the awake state or sleep is highly variable. These rhythms can be externally modulated …

Prolonged wakefulness is associated not only with obvious changes in the way we feel and
perform but also with well-known clinical effects, such as increased susceptibility to seizures …

Sleep slow waves are the main phenomenon underlying NREM sleep. They are
homeostatically regulated, they are thought to be linked to learning and plasticity processes …

Experiments on putative neuronal mechanisms underlying absence seizures as well as
clinical observations are critically reviewed for their ability to explain apparent “loss of …

Background Sleep electroencephalogram (EEG) brain oscillations in the low-frequency
range show local signs of homeostatic regulation after learning. Such increases and …