All of these people solved 12 problems online in the Great British Intelligence Test (GBIT), and also answered questions about their age, gender and level of experience. The tasks measured the level of various cognitive abilities, including working memory and attention. The researchers then compared the results with those of other Britons.
There were some differences. For example, neurosurgeons were able to solve problems faster. This may be due to the fact that this area attracts those who already have a penchant for fast processing, and the result of training in critical situations.
However, scientists have found little difference in cognitive ability between aerospace engineers and neuroscientists. As the authors of the study noted, it shows that everyone has different skills: some people are better at some things, while others are better at others. But it is very difficult to be better than others in everything.