He noticed that his patients tended to get themselves caught in a feedback loop in which irrational negative beliefs caused powerful negative feelings, which in turn seemed to drive patients’ reasoning, motivating them to find evidence to support their negative beliefs. Beck noticed a common pattern of beliefs, which he called the “cognitive triad” of depression: “I’m no good,” “My world is bleak,” and “My future is hopeless.” Many people experience one or two of these thoughts fleetingly, but depressed people tend to hold all three beliefs in a stable and enduring psychological structure.
