Secrets of the Creative Brain
A leading neuroscientist who has spent decades studying creativity shares her research on where genius comes from, whether it is dependent on high IQ—and why it is so often accompanied by mental illness.
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.
.. The basic concept that has been used in the development of these tests is skill in “divergent thinking,” or the ability to come up with many responses to carefully selected questions or probes, as contrasted with “convergent thinking,” or the ability to come up with the correct answer to problems that have only one answer.
.. By matching based on education, I hoped to match for IQ, which worked out well; both the test and the control groups had an average IQ of about 120. These results confirmed Terman’s findings that creative genius is not the same as high IQ. If having a very high IQ was not what made these writers creative, then what was?
.. 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.
.. “There is no greater joy that I have in my life than having an idea that’s a good idea. At that moment it pops into my head, it is so deeply satisfying and rewarding … My nucleus accumbens is probably going nuts when it happens.” (The nucleus accumbens, at the core of the brain’s reward system, is activated by pleasure, whether it comes from eating good food or receiving money or taking euphoria-inducing drugs.)
.. “Everybody has crazy things they want to try,” that same subject told me. “Part of creativity is picking the little bubbles that come up to your conscious mind, and picking which one to let grow and which one to give access to more of your mind, and then have that translate into action.”