Krippner and Davidson (1972) cited acupuncture as one of the possible "practical applications" of Soviet parapsychology. They mentioned Kirlian photography as one of the tools utilized in attempting to understand ESP (referred to as "biological information" in the .) and PK (referred to by the Soviets as "biological energy"). Krippner and Davidson (1972) wrote: Almost everyone we met in Russia mentioned acupuncture, although it is not as widely practiced there as in China. There are, in fact, important differences between the two techniques. Instead of using needles, as the Chinese do, Soviet physicians usually stimulate the appropriate area with massage, ointments, lotions, weak pulses of electricity, injected chemicals, and even, in the.