The story
From prosopo- (“person, mask”) + -poiesis; introduced by French psychical researcher René Sudre, whose book "Parapsychology" (1926) was published in English by Grove Press in 1962. Possibly influenced by προσωποποιία (prosōpopoiía, “dramatization, prosopopoeia”).
Etymology from Wiktionary, CC BY-SA 4.0.