Her son's terrified voice acted like a stimulant, shocking her into full wakefulness.
For millions of people, good sleep and productive wakefulness are already elusive.
The daytime napper may be unable to easily snap back into useful wakefulness.
In these societies, polyphasic sleep-wake cycles are predominant and long periods of wakefulness for gathering and socialization processes occur at night.
That is, just as our brains also organise sensory information during wakefulness, our brains also organise sensory information during sleep.
The role of wakefulness stimulating agents such as modafinil in this, the hypoactive subtype of delirium, remains to be assessed.
Often fluid scenes portray in-between states of various kinds: the territories that lie between wakefulness and sleep, reality and fantasy, the earthly and the supernatural.
In wakefulness, mnemonic functions (selection and encoding of information) require search activity and correlate with the theta rhythm.
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