I saw this article on AlterNet.org by Sara Ost at EcoSalon...

Simply put, your brain likes to eat. And it likes powerful fuel: quality fats, antioxidants, and small, steady amounts of the best carbs.

On a deadline? Need to rally? Avoid the soda, vending machine snacks and tempting Starbucks and go for these powerful brain boosters instead. The path to a bigger, better brain is loaded with Omega-3 fats, antioxidants, and fiber. Give your brain a kick start: eat the following foods on a daily or weekly basis for results you will notice.

Read their article...