Freer, P. (2003). Play Attention: User's manual. Asheville, NC: Unique Logic and Technology Inc.
2.
Kraft, U. (2006). Train your brain: Mental exercises with neurofeedback may ease symptoms of attention-deficit disorder, epilepsy and depression-and even boost cognition in healthy brains. Scientific American Mind, 17, 58-63.
3.
Siglin, J.A. (2000). Play Attention-Focusing on success. Intervention in School and Clinic, 36, 122-124.
4.
Snider, M. (2005, September 27). Video games actually can be good for you. USA Today, p. D7.