Jackson's Dilemma noted a shrunken vocabulary, compared with earlier works.
Researchers analyzing Murdoch's
Researchers in London who analyzed the final novel by author Iris Murdoch have detected signs of Alzheimer's disease in the book's language. Murdoch wrote Jackson's Dilemma just before she was diagnosed with the degenerative brain disease. NPR's Melissa Block talks with Dr. Peter Garrard, lead author of the study.