Polygraph may benefit in explaining the psychological correlations of polygraph exams. It could also explain which parts of the brain are active when subjects use artificial memories. Most brain activity occurs in both sides of the prefrontal cortex, which is linked to response inhibition. This indicates that deception may involve inhibition of truthful responses. Recalling artificial memories are known to activate the posterior cingulate cortex. However, fMRIs are limited by being expensive, immobile, and having inconsistent lying responses. Some researchers believe that reaction time (RT) based tests may replace polygraphs in concealed information detection. RT based tests differ from polygraphs in
For a Few Dollars More For a Few Dollars More For a Few Dollars More () is a 1965 spaghetti Western film directed by Sergio Leone. It stars Clint Eastwood and Lee Van Cleef as bounty hunters and Gian Maria Volontè as the primary villain. German actor Klaus Kinski plays a supporting role as a secondary villain. The film was an international co-production among Italy, West Germany, and Spain. The film was released in the United States in 1967, and is the second part of what is commonly known as the "Dollars Trilogy", following "A Fistful of Dollars" and preceding "The Good, the Bad and