Brains of creative people wired differently from others: study
24 January 2018
The brains of creative people are wired differently than others, according to Harvard scientists.
Researchers who studied brain scans of people who were asked to come up with inventive uses for everyday objects found a specific pattern of connectivity that corresponding to the most creative responses. They were able to use that pattern to predict how creative the responses of other people would be, on the basis of their connections in this network.
"What this shows is that the creative brain is wired differently," said Roger Beaty, a post-doctoral fellow at Harvard University in the US. "People who are more creative can simultaneously engage brain networks that do not typically work together," said Beaty, first author of the study published in the journal PNAS.
"We also used predictive modelling to show we could predict, with some degree of accuracy, how creative people's ideas were (based on brain scans) that had already been published," he said.
Beaty and colleagues reanalysed brain data from earlier studies and found that, by simply measuring the strength of connections in these peoples' brain networks, the degree of originality of their ideas could be estimated.
Even as the data showed the involvement of regions across the brain, in creative thought, according to Beaty, the evidence pointed to three subnetworks - the default mode network, the salience network and the executive control network - that appear to play key roles in creative thought.
He said that the default mode network, is involved in memory and mental simulation, and the theory is that it has an important role to play in processes like mind-wandering, imagination, and spontaneous thinking.
''In terms of creativity, we think that is important for brainstorming,'' Beaty said.
''But you are not always going to stumble onto the most creative idea that way, because you might be drawn to something unoriginal from memory, so that is when these other networks come online,'' he said.
The salience network detects important information in the environment and internally.
Researchers believe, it may be responsible for sorting through the ideas that emerge from the default mode network, when it comes to creativity.
According to Beaty, the executive network works to help people keep their focus on useful ideas while discarding those that are not working.