Multichannel recording technologies have revealed travelling waves of neural activity in
multiple sensory, motor and cognitive systems. These waves can be spontaneously …

Objective sleep quality can be measured by electroencephalography (EEG), a non-invasive
technique to quantify electrical activity generated by the brain. With EEG, sleep depth is …

We investigated the developmental changes in high-frequency oscillation (HFO) and
Modulation Index (MI)–the coupling measure between HFO and slow-wave phase. We …

During non-rapid eye movement (NREM) sleep (stage N3), when consciousness fades,
cortico-cortical interactions are impaired while neurons are still active and reactive. Why is …

Declarative memory consolidation is hypothesized to require a two-stage, reciprocal cortical–
hippocampal dialogue. According to this model, higher frequency signals convey …

The insula plays a fundamental role in a wide range of adaptive human behaviors, but its
electrophysiological dynamics are poorly understood. Here, we used human intracranial …

Human sleep is considered a global phenomenon, orchestrated by central specialized
neuronal networks modulating the whole-brain activity. However, recent studies point to a …

The role of cortical connectivity in brain function and pathology is increasingly being
recognized. While in vivo magnetic resonance imaging studies have provided important …

Sensory processing is distributed among many brain regions that interact via feedforward
and feedback signaling. Neuronal oscillations have been shown to mediate intercortical …

Sleep offers a unique opportunity to relate changes in brain activity to changes in
consciousness. Indeed, if it were not for sleep, when consciousness fades in and out on a …