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Received December 2, 2011; Revised April 13, 2012; Published October 1, 2012Abstract: In this study, we analyzed the kind of psychological effects that were caused bynonlinear, possibly chaotic vibrations as compared to regular vibrations. For this analysis,we produced a chaotic low-frequency electrical therapy device to generate chaotic vibrations.Using the device, we analyzed the direct effects of chaotic vibrations on the human body. Inthe experiments, we generated fully chaotic vibrations, intermittent chaotic vibrations, andperiodic vibrations. To evaluate the effects of the vibrations on the human body, we used oneof the subjective methods; a paired comparison method. We identified a rank-order scale bycomparing pairs of two vibrations. The results indicate that complicated vibrations are moreeffective than periodic vibrations.Key Words: Chaos, Nonlinear vibration, Electrical therapy |
