Impact of pulse width and pulse oscillation interval on perception of pseudo-attraction force

This paper discusses the effect of acceleration profiles on the kinesthetic illusion of being pulled (pseudo-attraction force perception). We have found that when a hand-held object oscillates in the hands, if the acceleration pattern is lopsided, one feels a pulling force sensation, although the object does move in two opposite directions. Our previous findings indicate that the pulse frequency of a lopsided oscillation determines the effective generation of the pseudo-attraction force. The object of this study is to clarify the effect of pulse width and pulse interval on force perception at the pulse frequency. The experimental results suggest that (i) there were no significant difference between pulse widths as regards perceiving a pseudo-attraction force, and (ii) there was a depressive interaction between pulse width and pulse interval with respect to force perception.