I've recently posted (July 10 and 11) on how our biome (the microbial community within us) may affect our moods and brain functioning. However, the following excerpts from the article on creativity reminds us that we cannot neglect looking at our genetic history and genes. I highlighted in bold-type some of the research results. This author is the neuroscientist Nancy Andreason, who has spent decades studying creativity and where creative genius comes from, whether it is dependent on high IQ, and why it is so often accompanied by mental illness. Do go and read the whole article. From The Atlantic:
Secrets of the Creative Brain
I have spent much of my career focusing on the neuroscience of mental illness, but in recent decades I’ve also focused on what we might call the science of genius, trying to discern what combination of elements tends to produce particularly creative brains. What, in short, is the essence of creativity? Over the course of my life, I’ve kept coming back to two more-specific questions: What differences in nature and nurture can explain why some people suffer from mental illness and some do not? And why are so many of the world’s most creative minds among the most afflicted? My latest study, for which I’ve been scanning the brains of some of today’s most illustrious scientists, mathematicians, artists, and writers, has come closer to answering this second question than any other research to date.
Although many people continue to equate intelligence with genius, a crucial conclusion from Terman’s study is that having a high IQ is not equivalent to being highly creative...Subsequent studies by other researchers have reinforced Terman’s conclusions, leading to what’s known as the threshold theory, which holds that above a certain level, intelligence doesn’t have much effect on creativity: most creative people are pretty smart, but they don’t have to be that smart, at least as measured by conventional intelligence tests. An IQ of 120, indicating that someone is very smart but not exceptionally so, is generally considered sufficient for creative genius.
But if high IQ does not indicate creative genius, then what does? And how can one identify creative people for a study?...In my own version of a eureka moment, the answer finally came to me: creative people are better at recognizing relationships, making associations and connections, and seeing things in an original way—seeing things that others cannot see.
This time around, I wanted to examine a more diverse sample of creativity, from the sciences as well as the arts...My individual jewels so far include, among others, the filmmaker George Lucas, the mathematician and Fields Medalist William Thurston, the Pulitzer Prize–winning novelist Jane Smiley, and six Nobel laureates from the fields of chemistry, physics, and physiology or medicine.
You cannot force creativity to happen—every creative person can attest to that. But the essence of creativity is making connections and solving puzzles.
As I hypothesized, the creative people have shown stronger activations in their association cortices during all four tasks than the controls have. This pattern has held true for both the artists and the scientists, suggesting that similar brain processes may underlie a broad spectrum of creative expression....Many creative people are polymaths, people with broad interests in many fields—a common trait among my study subjects.
So far, this study—which has examined 13 creative geniuses and 13 controls—has borne out a link between mental illness and creativity similar to the one I found in my Writers’ Workshop study. The creative subjects and their relatives have a higher rate of mental illness than the controls and their relatives do (though not as high a rate as I found in the first study), with the frequency being fairly even across the artists and the scientists. The most-common diagnoses include bipolar disorder, depression, anxiety or panic disorder, and alcoholism.
As in the first study, I’ve also found that creativity tends to run in families, and to take diverse forms. In this arena, nurture clearly plays a strong role. Half the subjects come from very high-achieving backgrounds, with at least one parent who has a doctoral degree. The majority grew up in an environment where learning and education were highly valued.
So why do these highly gifted people experience mental illness at a higher-than-average rate? Given that (as a group) their family members have higher rates than those that occur in the general population or in the matched comparison group, we must suspect that nature plays a role—that Francis Galton and others were right about the role of hereditary factors in people’s predisposition to both creativity and mental illness. We can only speculate about what those factors might be, but there are some clues in how these people describe themselves and their lifestyles.
One possible contributory factor is a personality style shared by many of my creative subjects. These subjects are adventuresome and exploratory. They take risks. Particularly in science, the best work tends to occur in new frontiers. (As a popular saying among scientists goes: “When you work at the cutting edge, you are likely to bleed.”) They have to confront doubt and rejection. And yet they have to persist in spite of that, because they believe strongly in the value of what they do. This can lead to psychic pain, which may manifest itself as depression or anxiety, or lead people to attempt to reduce their discomfort by turning to pain relievers such as alcohol.
I’ve been struck by how many of these people refer to their most creative ideas as “obvious.” Since these ideas are almost always the opposite of obvious to other people, creative luminaries can face doubt and resistance when advocating for them. ... When you have talent and see things in a particular way, you are amazed that other people can’t see it.” Persisting in the face of doubt or rejection, for artists or for scientists, can be a lonely path—one that may also partially explain why some of these people experience mental illness.
One interesting paradox that has emerged during conversations with subjects about their creative processes is that, though many of them suffer from mood and anxiety disorders, they associate their gifts with strong feelings of joy and excitement. “Doing good science is simply the most pleasurable thing anyone can do,” one scientist told me.
As for how these ideas emerge, almost all of my subjects confirmed that when eureka moments occur, they tend to be precipitated by long periods of preparation and incubation, and to strike when the mind is relaxed—during that state we called REST. “A lot of it happens when you are doing one thing and you’re not thinking about what your mind is doing,” one of the artists in my study told me. “I’m either watching television, I’m reading a book, and I make a connection …
Many creative people are autodidacts. They like to teach themselves, rather than be spoon-fed information or knowledge in standard educational settings.
Creative people tend to be very persistent, even when confronted with skepticism or rejection....Of course, having too many ideas can be dangerous. One subject, a scientist who happens to be both a kite and a string, described to me “a willingness to take an enormous risk with your whole heart and soul and mind on something where you know the impact—if it worked—would be utterly transformative.” The if here is significant. Part of what comes with seeing connections no one else sees is that not all of these connections actually exist.