The bridge was not introduced into the dog training world by sea mammal trainers in the 1990s. If we go back in history, it was actually Keller and Marian Brelands who introduced the use of a clicker signal just after the Second World War. This former student of professor Skinner worked with bridge signals under his supervision. They were so convinced about the power of these bridge signals that they introduced this into the professional animal training world.
A bridge signal is a clear signal telling the animal that reinforcement is on its way. One of the golden rules in animal training is ‘clear communication!’ Nowadays, we read a lot about marker training. Trainers talk about an audible marker, a signal like a clicker, whistle, or word. A marker or bridge signal is not new in the dog training world. But it seems to be relatively new in the detection dog community. Now you can get this original clicker!