"The gadget [...]measures electrical signals from users’ skin to assess their emotional state. The technology is similar to a lie detector recognising the nervousness behind a fib. The announcement by the two companies said online traders had nearly double the number of deals as those who traded through a broker and that online traders earned lower returns because of poor decisions. ”Driven by fear, they may sell too hastily when share prices drop. Driven by greed, they may be overenthusiastic,” the announcement said. The EmoBracelet and another device, an EmoBowl, use electrical displays to show a person’s emotional intensity. The two items were designed to warn traders to step back and take a breather by alerting them to their heightened emotional state. As a wearer’s emotions grow more intense, lights flicker faster on the bracelet and the colours inside the bowl change from a soft yellow to orange to a deep cautionary red." - Steven Perez from Bookmarklet