“…Apparently, so did Aristotle (in Gallop, 1996), Descartes (1649/1985), Freud (1900/1931), and everyone else we've been able to find who wrote on the topic prior to the 20th century. In the middle of the 20th century, however, research psychologists and the general public in the United States thought they dreamed primarily in black and white (e.g., Middleton, 1942; Hall, 1951; de Martino, 1953; see Schwitzgebel, 2002 for a review).…”