To what extent is memory reliable?

Researchers have demonstrated that memory may not be as reliable as we think through the use of DNA technology; psychologists have demonstrated that eyewitnesses can be wrong. Memories may be influenced by other factors than what was recorded in the first place, due to the reconstructive nature of memory.

Studies that conclude memory is good typically test recollections of more recent events and emphasize the astounding accuracy of their details. In the University of Toronto study, researchers measured memories of verifiable experiences by focusing on those regarding an audio guided tour of a hospital.