How does one define extraordinary creativity? Is creative genius a product of nature or nurture? And can those of us who are less creative enhance the creative capacity in ourselves and others? Andreasen (The Broken Brain
), editor-in-chief of the Journal of the American Psychiatric Association
, brings neuroscience to bear in providing insight and expert analysis of the connections between extraordinary creativity, mental illness, intelligence and the social environment. The complex subject matter is punctuated with intriguing research, such as Andreasen's Iowa Writer's Workshop study examining the relationship between creativity and psychopathology; a study of London taxi drivers showing that their need for extensive memory of the city leads to a larger hippocampus; and a study of members of symphony orchestras that found increased gray matter in Broca's area. These studies lead Andreasen to conclude that "extraordinary creativity" is the result of neural processes that "differ qualitatively as well as quantitatively" from those of other people. The author's passion and admiration for creative genius and the arts—not surprising given her Ph.D. in Renaissance English literature—is evidenced in her exploration of such great minds as Mozart, da Vinci, Michelangelo and Tchaikovsky. And quotations from introspective accounts by mathematician Henri Poincaré, chemist Friedrich Kekulé, Stephen Spender and Neil Simon vividly describe mental activities that are anything but ordinary. Andreasen leaves us with hope that the potential exists to enhance the creative capacity in our children and in ourselves. Photos and illus. (Nov.)