The thinking is that areas for language and creativity compete in the brain, which might explain why some people with brain damage suddenly become artistic, a new research suggests.
To better pinpoint the areas involved in creative thinking, Simone Shamay-Tsoory, from the University of Haifa, Israel, and her team compared 40 people with damage in the brain, and a group without any damage.
As well as having their brains scanned, the two groups were shown 30 identical circles on a piece of paper and given five minutes to draw as many different pictures of meaningful objects as they could, each of which had to include at least one circle.
Although they were unable to check volunteers' levels of creativity before brain damage, the results suggest that levels of originality directly relate to where in the brain the damage has happened. Those who scored significantly higher than healthy volunteers in originality had more damage to the left side of the brain, in areas responsible for processing language. Those with the lowest scores tended to have more damage to the right side of the brain, in an area involved in planning and decision-making.
"(Language)regions may compete with the right hemisphere's ability to produce creative ideas," Shamay-Tsoory says. This would explain why, when these language areas are damaged, originality seems to increase.
2010-12-22 17:02 编辑：kuaileyingyu