![]() ![]() In addition, a second smaller wave of electrical activity was seen on EEG. This type of activity is associated with high-level processing of information, and researchers say it was also centered in the same right temporal lobe area. The study showed that about one-third of a second before the "Aha!" moment, there was a sudden burst of high-frequency brain waves. In the second experiment, researchers monitored the participants' brainwave activity using an electroencephalogram (EEG) during insight and noninsight problem solving tasks. Researchers say previous studies have shown that this right temporal lobe may be important for drawing distantly related information together, which is a key component of insight. ![]() Little activity was detected in this area during noninsight solutions. Using brain imaging techniques, researchers found that activity increased in a small part of the right lobe of the brain called the temporal lobe when the participants reported experiencing creative insight during problem solving. In the first, study participants were given a series of word problems to solve designed to evoke a distinct "Aha!" moment about half the time they were solved. In the study, which appears in the April issue of PloS Biology, researchers compared brain activity in two different experiments. Surge of Brain Activity Accompanies 'Aha!' Moments "We believe this is the first research showing that distinct computational and neural mechanisms lead to these breakthrough moments." "For thousands of years people have said that insight feels different from more straightforward problem solving," says researcher Mark Jung-Beeman, an associate professor of psychology at Northwestern University, in Evanston, Ill. Ap- It may not appear in the shape of a light bulb above your head, but researchers say "Aha!" moments are marked by a surge of electrical activity in the brain.Ī new study shows that solving a problem that requires creative insight prompts distinct changes in brain activity that don't occur under normal problem-solving conditions.
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