REM sleep behavior disorder (RBD) is a parasomnia with dream enactment and presence of REM sleep without atonia (RSWA). RBD diagnosed manually via polysomnography (PSG) scoring, which is time ...

RBD is marked by loss of REM sleep atonia, leading to physical dream enactment. Polysomnography is essential to confirm RBD and rule out other disorders. Idiopathic RBD is a strong predictor of ...

Also called muscle atonia, sleep paralysis happens as a person is entering or leaving REM sleep. During REM, signals from the brain relax muscles in the arms and legs, preventing too much movement ...

"Experiencing paralysis upon waking is known as REM sleep paralysis," he explained. "Normally, during REM sleep, the brain induces muscle atonia (temporary paralysis) to prevent dream enactment.

These brain areas, in healthy conditions, generate muscle atonia in REM sleep by inhibiting the cranial nerves and the motor neurons of the spinal cord. 3 The diagnosis of RBD requires video ...

For example, one possible cause is Parkinson's, a disease that usually manifests after age 60. However, the exact cause of sleep myoclonus is not entirely clear, although researchers have a few ...

Biological functions related to sleep and emotional processing are integral to human brain function but often remain unexamined in the context of disorders such as Insomnia and Bipolar Disorder (BD).

To understand why people see the Hat Man, we must also understand how sleep paralysis works. Sleep paralysis is linked to the rapid eye movement (REM) stage of the sleep cycle. REM is the stage in ...

REM sleep behaviour disorder (RBD) is a parasomnia characterised by the loss of muscle atonia in REM sleep, leading to dream enactment behaviours with or without vocalisations. ‘Idiopathic’, or ...

Known as the Hat Man, this tall, dark, featureless entity has been seen in people's bedrooms across the globe, watching over them from a doorway, cupboard or corner as they drift between sleep and ...

Sleep paralysis is a surprisingly common sleep state — a waking nightmare that taps into our paranormal and supernatural beliefs.