There have been a number of advances in the search for the neural correlates of
consciousness—the minimum neural mechanisms sufficient for any one specific conscious …

The role of the frontal cortex in consciousness remains a matter of debate. In this
Perspective, we will critically review the clinical and neuroimaging evidence for the …

The mechanisms through which general anaesthetics, an extremely diverse group of drugs,
cause reversible loss of consciousness have been a long-standing mystery. Gradually, a …

The negative effects of sleep deprivation on alertness and cognitive performance suggest
decreases in brain activity and function, primarily in the thalamus, a subcortical structure …

Several theories claim that dreaming is a random by-product of REM sleep physiology and
that it does not serve any natural function. Phenomenal dream content, however, is not as …

The thalamic midline and intralaminar nuclei, long thought to be a non-specific arousing
system in the brain, have been shown to be involved in separate and specific brain …

Sleep can be addressed across the entire hierarchy of biological organization. We discuss
neuronal-network and regional forebrain activity during sleep, and its consequences for …

Experimental data indicate a role for the prefrontal cortex in mediating normal sleep
physiology, dreaming and sleep-deprivation phenomena. During nonrandom-eye …

Recent blood oxygenation level dependent functional MRI (BOLD fMRI) studies of the
human brain have shown that in the absence of external stimuli, activity persists in the form …

This mini-review focuses on the effects of exercise on sleep. In its early days, sleep research
largely focused on central nervous system (CNS) physiology using standardized tabulations …