A new technique that separates truth from lies finds it takes about 30 percent longer to fib. The computer-based analysis, reported in The Times of London, showed that British test subjects took 1.2 seconds on average to speak reality in recent tests, while prevarications took 1.8 seconds. The timed antagonistic response alethiometer test (Tara) was developed by Aiden Gregg, a psychologist at the University of Southampton.