A new study shows that keeping away from tendency to brood even for a small amount of time will help you to increase problem-solving ability. But that’s actually not the part of the study I found interesting. The part I found interesting is how they testing this thesis.
To understand how rumination affects problem solving, researchers asked 51 study participants to watch a short movie clip. The movie clip was designed to make viewers sad. Afterwards they were given tests to check their problem solving abilities. Researchers found that people who were able to distract themselves did better at the tests.
What movie clip did they show them? How could they find a single clip that would make all people equally sad? The abstract doesn’t say.