Neuroscience

Detecting Parkinson's disease decades before symptoms appear

Researchers at The Florey and Austin Health have shown it is possible to detect tell-tale signs of Parkinson's disease 20–30 years before symptoms appear. Their work opens the door to screening programs and preventative ...

Neuroscience

Study identifies how muscles are paralyzed during sleep

Two powerful brain chemical systems work together to paralyze skeletal muscles during rapid eye movement (REM) sleep, according to new research in the July 11 issue of The Journal of Neuroscience. The finding may help scientists ...

Psychology & Psychiatry

Psychologists chase down sleep demons

What do Moby Dick, the Salem witch trials and alien abductions all have in common? They all circle back to sleep paralysis.

Neuroscience

Study finds we can respond to verbal stimuli while sleeping

Sleep is not a state in which we are completely isolated from our environment: while we sleep, we are capable of hearing and understanding words. These observations, the result of close collaboration between teams at Paris ...

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Sleep paralysis is paralysis associated with sleep that may occur in healthy persons or may be associated with narcolepsy, cataplexy, and hypnagogic hallucinations. The pathophysiology of this condition is closely related to the normal hypotonia that occurs during REM sleep. When considered to be a disease, isolated sleep paralysis is classified as MeSH D020188. Some evidence suggests that it can also, in some cases, be a symptom of migraine.

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