travel could be required for a more creative brain

For a more creative brain; travel -scientists say that living in another country can also make you more creative.

Foreign experiences increase both cognitive flexibility and depth and integrativeness of thought, the ability to make deep connections between disparate forms.

What a lot of psychological research has shown now is that the ability to engage with people from different backgrounds than yourself, and the ability to get out of your own social comfort zone, is helping you to build a strong and acculturated sense of your own self.

Our ability to differentiate our own beliefs and values... is tied up in the richness of the cultural experiences that we have had.

http://www.theatlantic.com/health/archive/2015/03/for-a-more-creative-brain-travel/388135/