This is a very interesting interview on the Beyond Consequences website.
"This discussion with Dr. Robert Scaer and Heather T. Forbes, LCSW, centers on the connection of childhood trauma and the addictive nature of video games. Dr. Scaer discusses how trauma, at an unconscious level, can heighten a child's arousal system, creating the child's need to seek extreme excitement and pleasure. Video games meet this need and give children that "rush" their bodies are craving." Check it out here.