A technique that has been around for many years is recently gaining popularity among parents - it's called Elimination Communication, or "infant potty training." It helps parents teach babies as young as 7 months old how to use a potty instead of a diaper.

A key part of the method is to teach the baby a verbal cue, such as "sssssss-sssss." When whispered into the ear, the infant is conditioned to release their bladder. The infants themselves are not necessarily "trained." Instead, parents get their children used to responding to the need to go.

Below is a link to a story on CBS about Elimination Communication, as well as additional information. In addition, resources for parents on the topic include The Diaper-Free Baby: The Natural Toilet Training Alternative and Infant Potty Training: A Gentle and Primeval Method Adapted to Modern Living, both available from Amazon.com

Here's the link to the CBS story: 7 Months Old? Potty Train Her! - CBS News

http://www.cbsnews.com/stories/2005/10/11/earlyshow/health/health_news/main931782.shtml