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4 Σεπ 2023 · Sleep paralysis refers to the phenomenon in which resumption of consciousness occurs while muscle atonia of REM (rapid eye movement) sleep is maintained, leading to intense fear and apprehension in the patient as the patient lies awake without the ability to use any part of their body.
5 Απρ 2018 · This chapter discusses a variety of sleep paralysis experiences from the perspective of enactive cognition and cultural neurophenomenology. Current knowledge of neurophysiology and associated conditions is presented, and some techniques for coping with sleep paralysis are proposed.
Sleep paralysis is influenced by risk factors such as sleep deprivation, irregular sleep patterns, and high stress or anxiety. It can also be affected by conditions like narcolepsy and insomnia, as well as sleeping on your back.
3 Απρ 2023 · REM is the phase of sleep responsible for dreaming. It is characterized by total body voluntary muscle paralysis (except for the extraocular muscles). This paralysis is thought to be a mechanism to prevent neural stimuli from dreams to manifest in actual muscular impulses during sleep.
15 Αυγ 2018 · Patients with narcolepsy exhibit excessive daytime sleepiness associated with frequent intrusions of REM sleep into the waking state. Narcolepsy is also often accompanied by cataplexy, which is a temporary state of paralytic muscle weakness whose onset is triggered by positive emotions such as excitement or laughter.
The pathophysiology of sleep paralysis is reflected in neurophysiologic manifestations, and includes atonia of striated muscles under voluntary control, except the diaphragm, external eye muscles, and stapedius, similar to the atonia in REM sleep. Muscle twitches also occur.
7 Ιουν 2023 · The primary neurophysiological processes that lead to sleep paralysis are well known and include alterations in the gamma-aminobutyric acid, glycine, orexin, and serotonin systems. Despite a universal neurophysiological basis, there is large variability in subjective experiences across cultures.
