David Hufford / the 'Old Hag'.
documentedpersonAbduction Research
Folklorist whose study of the Newfoundland 'Old Hag' tradition (The Terror That Comes in the Night, 1982) grounded a stable cross-cultural experience in the physiology of sleep paralysis.
Same universal biology, different cultural label: Old Hag / incubus / kanashibari / - in modern America - alien abduction. The trigger is universal; the interpretation is supplied by the local cultural script.