Subject and Deck Keeler

deck: Without showing anyone, the subject would shuffle the cards into the deck, according to National Observer. Keeler went through all 52, one at a time, instructing his subject to deny picking the card, even if it was the one they had chosen. He would have his subject, hooked up to an array of electrodes and sensors, pick eight cards from the deck. One card at a time. Checking his machine, which monitored their breathing and heartbeat, Keeler could catch his subject in a lie. Photo from Shutterstock. (www.immigrantscanada.com). As reported in the news.