Researchers found that blueberry eaters showed a reduction in several factors influencing the inflammatory response. They concluded that blueberry polyphenols can lessen learning impairments resulting from neurotoxic insult and exert anti-inflammatory actions, perhaps by alteration of gene expression.
Other studies have found that diets rich in blueberries significantly improved both the learning capacity and motor skills [...]

Blueberries are among the fruits with the highest antioxidant activity.  Using a test called ORAC , researchers have shown that a serving of fresh blueberries provides more antioxidant activity than many other fresh fruits and vegetables.
In one study, Jim Joseph, director of the neuroscience laboratory in the USDA Human Nutrition Research Center (HNRC), fed blueberry [...]