1. Andrews PW, Thomson JA Jr. The bright side of being blue: depression as an adaptation for analyzing complex problems. Psychol Rev. 2009;116:620-654.
2. Lehrer J. Depression’s upside. New York Times. February 25, 2010.
3. Coyne JA. Is depression an evolutionary adaptation? [Part 1] [Part 2] Accessed May 25, 2010.
4. Lonnqvist JK. Suicide. In: Gelder MN, Andreasen, Lopez-Ibor J, Geddes J, eds. New Oxford Textbook of Psychiatry. 2nd ed. Oxford, UK: Oxford University Press; 2009:951-957.
5. Pies R. The myth of depression’s upside. PsychCentral. Accessed May 25, 2010.
6. Keedwell P. How Sadness Survived: The Evolutionary Basis of Depression. Oxford, UK: Radcliffe Publishing; 2008.
7. Gilbert P, Allan S. The role of defeat and entrapment (arrested flight) in depression: an exploration of an evolutionary view. Psychol Med. 1998;28:585-598.
8. Taylor SE. Positive Illusions: Creative Self-deception and the Healthy Mind. New York: Basic Books; 1991.
9. Andreasen NC. Creativity and mental illness: prevalence rates in writers and their first-degree relatives. Am J Psychiatry. 1987;144:1288-1292.