by movie makers and writers to convey the flavour of 16th century English speech" rather than actual Renaissance English, a date that was inaccurate but was the same as a recognized printing error in historical pamphlets, and a subject that reported historically accurate information from the Roman era that was identical to information found in a 1947 novel set in the same time as the individual's memories, with the same name reported by the person regressed. Other details cited are common knowledge and not evidence of the factual nature of the memories; subjects asked to provide historical information that would allow checking provided only vague responses that did not allow for verification, and sometimes were unable to provide critical details that would have been common knowledge (e.g. a subject described the life of a Japanese fighter pilot during World War II but was unable to identify Hirohito as the Emperor of Japan during the 1940s). Studies Studies suggest that past lives are likely false memories, implanted through the susceptibility of the hypnotic method. A 1976 study found that 40% of hypnotizable subjects described new identities and used different names when given a suggestion to regress past their birth. In the 1990s, a series of experiments undertaken by Nicholas Spanos examined the nature of past life memories. Descriptions of alleged past lives were found to be extremely elaborate, with vivid, detailed descriptions. This, however, is not indicative of the validity of this therapeutic method. Subjects who reported memories of past lives exhibited high hypnotizability, and patients demonstrated that the expectations conveyed by the experimenter were most important in determining the characteristics of the reported memories. The degree to which the memories were considered credible by the experimental subjects was correlated most significantly to the subjects' beliefs about reincarnation and their expectation to remember a past life rather than hypnotizability. Spanos' research leads him to the conclusion that past lives are not memories, but actually social constructions based on patients acting "as if" they were someone else, but with significant flaws that would not be expected of actual memories. To create these memories, Spanos' subjects drew upon the expectations established by authority figures and information outside of the experiment such as television, novels, life experiences and their own desires. In sum, it is therefore suggested that past lives are likely false memories, implanted through the susceptibility of the hypnotic method. Ethical questions