Conference Paper

The Effect of Weight on the Perception of Vibrotactile Intensity with Handheld Devices.

DOI: 10.1109/WHC.2007.112 Conference: Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (WHC 2007), 22-24 March 2007, Tsukuba, Japan
Source: DBLP

ABSTRACT The objective of this study was to determine whether the weight of a vibrating handheld object influenced the per- ceived intensity of its vibrations. Experiments were con- ducted to determine the subjective equivalence of vibrotac- tile intensity for objects that had the same size but had dif- ferent weights. The results suggest that for the same surface acceleration and hence the same movement, the heavier is the device, the stronger is the perceived intensity.

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    Acoustics, Speech, and Signal Processing Newsletter, IEEE 04/1974; 16(1):9- 9.
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    ABSTRACT: This paper addresses the question of strength perception for vibration signals used in mobile devices. Employing devices similar to standard cell phones and using pulsed vibration signals to combat adaptation effects, experiments were performed to study the effect of weight and underlying on perceived strength. Results shows that for the same measured acceleration on the device, a heavier box is perceived to vibrate with greater strength. Furthermore, signals with higher underlying frequency are perceived to be weaker for the same measured acceleration. While our results are consistent with previous studies, they are obtained for the specific condition of ungrounded, vibrating objects held in the hand. Our results suggest the need for a systematic correction law for use by designers to specify the vibratory characteristics of a device as a function of its weight and of the desired operating frequency.
    IEEE Transactions on Haptics 04/2010; · 1.39 Impact Factor
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    ABSTRACT: Weight perception has been of great interest for over three centuries. Most research has been concerned with the weight of static objects, and some illusions have been discovered. Here, we show a new illusion related to the perception of the heaviness of oscillating objects. We performed experiments that involved comparing the weight of two objects of identical physical appearance but with different gross weights and oscillation patterns (vibrating vertically at frequencies of 5 or 9 cycles per second with symmetric and asymmetric acceleration patterns). The results show that the perceived weight of an object vibrating with asymmetric acceleration increases compared to that with symmetric acceleration when the acceleration peaks in the gravity direction. In contrast, almost no heaviness perception change was observed in the anti-gravity direction. We speculate that the reason for the divergence between these results is caused by the differential impact of these two hypothesized perceptual mechanisms as follows: the salience of pulse stimuli appears to have a strong influence in the gravity direction, whereas filling-in could explain our observations in the anti-gravity direction. The study of this haptic illusion can provide valuable insights into not only human perceptual mechanisms but into the design of ungrounded haptic interfaces.
    IEEE Transactions on Haptics 02/2008; 1(1):9-18. · 1.39 Impact Factor

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