The "This Man" phenomenon http://thisman.org/history.htm Ever dream about this man? The 2nd recognition description is unsettling, but with the other reports (and without knowing more detail), it seems that the psychiatrists could have been unintentionally planting a suggestion to the patients that they had seen the face, especially if they were pointedly asking "have you seen this face in your dreams?" rather than just leaving the picture out for discovery. This questioning could have built up into a false memory ("maybe I did dream that face"), or maybe even triggered a dream of the face to occur (sort of a self-fulfilling prophecy). Just had to share this one because it was so strange. Could be the whole thing is baloney, though.