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Its mirror is the hypnagogic state at sleep onset; though often conflated, the two states are not identical and have a different phenomenological character. Hypnopompic and hypnagogic hallucinations are frequently accompanied by sleep paralysis, which is a state wherein one is consciously aware of one's surroundings but unable to move or speak.
A young house sparrow (Passer domesticus) exhibits unihemispheric slow-wave sleep. Unihemispheric slow-wave sleep (USWS) is sleep where one half of the brain rests while the other half remains alert. This is in contrast to normal sleep where both eyes are shut and both halves of the brain show unconsciousness.
Hori et al. regard sleep onset hypnagogia as a state distinct from both wakefulness and sleep with unique electrophysiological, behavioral and subjective characteristics, [10] [12] while Germaine et al. have demonstrated a resemblance between the EEG power spectra of spontaneously occurring hypnagogic images, on the one hand, and those of both ...
These impacts range in severity and it is important to be aware of the increased risk of health issues that may arise due to the stress-sleep cycle. Many of the physical impacts of stress overlap with the physical impacts of sleep deprivation, including short-term impacts like fatigue and headaches, and long-term impacts like high blood ...
Clouding of consciousness, also called brain fog or mental fog, [1] [2] occurs when a person is slightly less wakeful or aware than normal. [3] They are less aware of time and their surroundings, and find it difficult to pay attention. [3] People describe this subjective sensation as their mind being "foggy". [4]
Sleeping Girl, Domenico Fetti, c. 1615 . Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. . During sleep, there is a marked decrease in muscle activity and interactions with the surrounding environm
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The Buddhist term translated into English as "mindfulness" originates in the Pali term sati and in its Sanskrit counterpart smṛti. It is often translated as "bare attention", but in the Buddhist tradition it has a broader meaning and application, and the meaning of these terms has been the topic of extensive debate and discussion.