Thank you.
Since I first had the idea for this series, I've come across this book: Madness and Creativity by Ann Belford Ulanov. I've ordered it, but it hasn't arrived yet.
Here's one summary of it: "Analyst and author Ann Belford Ulanov draws on her years of clinical work and reflection to make the point that madness and creativity share a kinship, an insight that shakes both analysand and analyst to the core, reminding us as it does that the suffering places of the human psyche are inextricably—and, often inexplicably—related to the fountains of creativity, service, and even genius. She poses disturbing questions: How do we depend on order, when chaos is a necessary part of existence? What are we to make of evil—both that surrounding us and that within us? Is there a myth of meaning that can contain all the differences that threaten to shatter us?"
There may well be some interesting material in it for a later article in the series.