Image recall in hypnotic state

The International Society of Life Information Science (ISLIS) and the Japan Institute of Hypnosis (JIH) attempted collaboratively to compare physiological data during hypnosis and qigong. The authors report the results of electrodermal activity (EDA) and photoplethysmogram (PPG) during an image recall experiment in the hypnotic state and in static qigong (Shinki-unko-ho in Japanese; Zhenqi-yunxing-fa in Chinese). Subjects of the qigong experiment imaged 'qi' and imagined its control inside their bodies. A subject of the hypnosis experiment was led into a medium (perceptual) hypnotic state, then he tried to form the image of a target Chinese character printed on a paper which was folded and then rolled into a ball with plastic clay to prevent its being opened. EDA [micro S] and beat rate of PPG [bpm] declined after the start of qigong and rose 2 minutes before its end. EDA had positive relationships with PPG in both qigong and hypnosis; r = 0.83 (p < 0.001) in qigong; r = 0.62 (p < 0.001) in hypnosis. Also, there was a negative relationship in the medium hypnotic stage during hypnotic induction; r =-0.47 (p < 0.05).