According to some research, "those with high scores on a psychopath test are better at creative thinking". You can read more about it in the article below. What do you think, do you have to be a psychopath to be good at creative writing? Do your favorite authors exhibit psychopathic traits?
I think the study has to be taken with a grain of salt, as it deals with self-reported creativity, especially if you take into account that psychopaths tend to have an inflated sense of their own talents. Anyway, if you are curious, read the article.
http://www.medicaldaily.com/creative-thinking-psychopath-test-arts-384117
(Posted Apr 30, 2016)