<https://www.c-span.org/person/?susannahcahalan>Journalist Susannah Cahalan talked about her book, The Great Pretender: The Undercover Mission That Changed Our Understanding of Madness, about David Rosenhahn's and the pretend-to-be-a-patient studty. <https://www.c-span.org/video/?466007-1/qa-susannah-cahalan#>https://www.c-span.org/video/?466007-1/qa-susannah-cahalan# https://www.amazon.com/Great-Pretender-Undercover-Mission-Understanding/dp/1538715287/ref=sr_1_1?keywords=great+pretender&qid=1573578002&s=books&sr=1-1 "People Who experience mood swings, fear, voices and visions"