The U.S. News and World Report – Vernon Williams, M.D., 
When most people consider the concept of brain training to improve learning, they tend to think of those online game programs or puzzles that are purported to give the brain a “workout” by practicing memory and problem solving skills to sharpen the mind. Others consider more advanced techniques aimed at optimizing brainwave activity through neurofeedback or stimulation therapies. Although the games can be fun, there’s little research to support their true efficacy in training the brain for improved success in learning. (more)