Erik Hoffmann PhD is a retired Danish professor who has been researching the human brain and consciousness for more than 30 years. He has a Master's degree in psychology from Copenhagen University and worked there as an assistant professor at the Psychology Department for eight years. He also worked as a visiting professor at Rutgers University in New Jersey for several terms and was a research director at the Primal Center in Los Angeles for two years. Erik is the founder of the Mental Fitness & Research Center in Copenhagen, working with brain wave (neurofeedback) training. He has given talks at international conferences, conducted numerous workshops and published a number of articles in peer reviewed, scientific journals.