Editing Sleep paralysis (section)

=== Etymology ===
[[File:Der Albtraum (Anonym 19 Jh).jpg|thumb|230px|A 19th century version of ''[[Henry Fuseli|Füssli's]] The Nightmare'' (1781)]]
The original definition of sleep paralysis was codified by [[Samuel Johnson]] in his ''[[A Dictionary of the English Language]]'' as ''[[nightmare]]'', a term that evolved into the modern definition. The term was first used and dubbed by British neurologist, [[Samuel Alexander Kinnier Wilson|S.A.K. Wilson]] in his 1928 dissertation, ''The Narcolepsies.''<ref>Wilson S. A. K. (1928). The narcolepsies. ''Brain'' 51 63–109. 10.1093/brain/51.1.63</ref> Such sleep paralysis was widely considered the work of [[demon]]s, and more specifically [[Incubus|incubi]], which were thought to sit on the chests of sleepers. In [[Old English language|Old English]], the name for these beings was ''mare'' or ''mære'' (from a [[proto-Germanic language|proto-Germanic]] ''*marōn'', cf. [[Old Norse language|Old Norse]] ''[[mara (folklore)|mara]]''), hence comes the ''mare'' in the word ''nightmare''. The word might be [[cognate]] to [[Ancient Greek|Greek]] ''Marōn'' (in the [[Odyssey]]) and [[Sanskrit]] ''[[Mara (demon)|Māra]]''.