False memories may be full-blown memories of events that were never experienced or (perhaps more commonly) memories that are distorted (i.e., the event one is remembering actually occurred, but it did not occur in the way that is being recalled). Even though memory can foster an illusion of reliving an experience, it is actually a reconstruction and hence subject to departures from objective facts. This entry focuses on false episodic memories, or inaccurate memories of episodes in one's past, which can be distinguished from false semantic memories, which include inaccurate knowledge (e.g., erroneously believing that the capital of Russia is St. Petersburg).

For example, when conveying anecdotes in casual social interactions, people sometimes embellish them to make them more interesting, often spicing them with fresh details in subsequent retellings to assure the desired pungency. Although innocent in intent, such embellishments can actually alter the...