The integration of segregated brain functional modules is a prerequisite for conscious
awareness during wakeful rest. Here, we test the hypothesis that temporal integration …

Cognitive hyperarousal, resulting in enhanced cognitive activation, has been cited as an
important contributor to the development and preservation of insomnia. To further …

The influence of the circadian pacemaker and of the duration of time awake on the
electroencephalogram (EEG) was investigated in 19 humans during∼ 40 h of sustained …

We used the waking electroencephalogram to study the homeostatic sleep regulatory
process in human short sleepers and long sleepers. After sleeping according to their …

Prolonged wakefulness increases electroencephalogram (EEG) low-frequency activity (< 10
Hz) in waking and sleep, and reduces spindle frequency activity (∼ 12–16 Hz) in non-rapid …

Based on physiological models of neurovisceral integration, different studies have shown
how cognitive processes modulate heart rate and how the heartbeat, on the other hand …

Transcranial magnetic stimulation (TMS) has been widely used in human cognitive
neuroscience to examine the causal role of distinct cortical areas in perceptual, cognitive …

The low amplitude, high frequency waves of the electroencephalogram (EEG) indicative of
wakefulness, are produced by a summation of potentials of thalamocortical neurons, which …

During non-rapid eye movement (NREM) sleep, cortical neurons alternate between ON
periods of firing and OFF periods of silence. This bi-stability, which is largely synchronous …

The separate contribution of circadian rhythmicity and elapsed time awake on
electroencephalographic (EEG) activity during wakefulness was assessed. Seven men lived …