It sounds like the start of a horror film: a shadowy figure at the end of your bed, a faceless presence sitting on your chest ...

What Is Demon Face Syndrome? Demon face syndrome, or prosopometamorphopsia, is a rare brain disorder that affects how a person sees faces. If you have this condition, other people’s features might ...

A neuroscientist describes particular sleep disorders that occur while falling asleep and waking up. Hypnopompic hallucinations can happen with sleep paralysis, when body paralysis lingers during the ...

A woman suffering a rare vision problem experienced terrifying hallucinations – seeing images of alien faces, demons and animals. Alison Henthorne, 59, was diagnosed with Charles Bonnett syndrome ...

A woman suffering from a condition has told of how she experienced terrifying hallucinations - seeing images of alien faces, demons and animals. Alison Henthorne, 59, was diagnosed with Charles ...