it did with a long break (12 minutes). Sleep Research has shown sleep to help produce insight. Individuals were initially trained on insight problems. Following training, one group was tested on the insight problems after sleeping for eight hours at night, one group was tested after staying awake all night, and one group was tested after staying awake all day. Those that slept performed twice as well on the insight problems than those who stayed awake. In the brain Differences in brain activation in the left and right hemisphere seem to be indicative of insight versus non-insight solutions. Using RAT’s that were either presented to the left or right visual field, it was shown that participants having solved the problem with insight were more likely to have been shown the RAT on the left visual field, indicating right hemisphere processing. This provides evidence that the right hemisphere plays a unique role in insight. fMRI and EEG scans of participants completing RAT's demonstrated unique brain activity corresponding to problems solved by insight. For one, there is high EEG activity in the alpha- and gamma-band about 300 milliseconds before participants indicated a solution to insight problems, but not to non-insight problems. Additionally, problems solved by insight corresponded to increased activity in the temporal lobes and mid-frontal cortex, while more activity in the posterior cortex corresponded to non-insight problems. The data suggests there is something different occurring in the brain when solving insight versus non-insight problems that happens right before the solving of the problem. This conclusion has been supported also by eye-tracking data which shows an increased eye blink duration and frequency when people solve problems via Insight. This latter result, paired with an eye pattern oriented to look away from sources of visual inputs (such as looking at blank wall, or out the window at the sky) proves different attention involvement in Insight problem solving vs problem solving via analysis. Group insight It was found that groups typically perform better on insight problems (in the form of rebus puzzles with either helpful or unhelpful clues) than individuals. Additionally, while incubation improves insight performance for individuals, it improves insight performance for groups even more. Thus, after a 15-minute break, individual performance improved for the rebus puzzles with unhelpful clues, and group performance improved for rebus puzzles with both unhelpful and helpful clues. Individual differences Personality and gender, as they relate to performance