Apparent Movement in Vibrotactile Displays

Bice, Raymond C.

doi:10.2466/pms.1969.29.2.575

Cited by 10 publications

(6 citation statements)

References 6 publications

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“…The summary of an analysis of variance performed on the data is given in Table 1, where it can be seen that the main effect of number of stimulators on movement judgments was significant beyond the .05 level. The qualitative observations of Bice (1969), Bliss and Crane (1965), and Sherrick (1968) were therefore confirmed by the present study.…”

Section: Resultssupporting

confidence: 87%

Tactile apparent movement: The effects of number of stimulators.

Kirman

1974

Journal of Experimental Psychology

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Section: Resultssupporting

confidence: 87%

Tactile apparent movement: The effects of number of stimulators.

Kirman

1974

Journal of Experimental Psychology

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“…It is important to note the only other study of which we are aware that has employed circumferential abdominal stimulation for spatial orientation (although Bice, 1969, stimulated sites around the trunk in his study of apparent motion). Van Erp (2000) also employed a linear array of vibrotactile stimuli at the level just above the navel to examine directional acuity.…”

Section: General Discussion and Conclusionmentioning

confidence: 99%

Vibrotactile localization on the abdomen: Effects of place and space

Cholewiak

Brill

Schwab

2004

Perception & Psychophysics

228

165

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In this study, we explore the conditions for accurate localization of vibrotactile stimuli presented to the abdomen. Tactile orientation systems intended to provide mobility information for people who are blind depend on accurate identification of location of stimuli on the skin, as do systems designed to indicate target positions in space or the status of remotely operated devices to pilots or engineers. The spatial acuity of the skin has been examined for simple touch, but not for the types of vibrating signals used in such devices. The ability to localize vibratory stimuli was examined at sites around the abdomen and found to be a function of separation among loci and, most significantly, of place on the trunk. Neither the structures underlying the skin nor the types of tactor tested appeared to affect localization. Evidence was found for anatomically defined anchor points that provide localization referents that enhance performance even with wide target spacing.

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“…They determined that a range of 100 to 400 msec for interstimulus intervals leads to optimal movement. Also, shorter intervals (shorter than 48 msec) lead to a poor judgment for direction (with two actuators) (Bice, 1969).…”

Section: Early Studiesmentioning

confidence: 99%

“…Early research by Bice (1969) indicated that judgment of direction in the palm was more error-prone than on the abdomen.Craig & Lyle ( 2002) later provided evidence that the body part with the highest receptor density is more sensitive to tactile stimulation, and that the accuracy of responses in these parts is higher than elsewhere. However, Kirman (1974) reported in a pilot study that there was no special effect of the body part on high-quality apparent tactile motion perception.…”

Section: Body Partmentioning

confidence: 99%

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Effect of Vibration Frequency Mismatch on Apparent Tactile Motion

Kasaei

Lévesque

2022

2022 IEEE Haptics Symposium (HAPTICS)

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Vibrotactile feedback is increasingly common in our daily life. This growth in haptic feedback usage has produced a demand for higher quality feedback that improves users' experience when they communicate with different devices. The experience of sophisticated haptic feedback could further improve when more than one haptic devices are used simultaneously. A combination of different haptic devices could for example make it possible to feel illusions such as apparent tactile motion and phantom tactile sensations. The apparent tactile motion illusion, in particular, allows the perception of a continuously moving stimulus when two or more non-moving stimuli are produced with specific timing and distance intervals. This illusion could for example create a sensation of flow between multiple haptic devices, such as between a smartwatch and a handheld controller. Questions arise, however, when the haptic devices used are not designed to operate together, as may be the case for commercial products. How does a mismatch in the resonant frequency of two actuators affect the detection of tactile illusions, and more specifically apparent tactile motion? Does this illusion break down as the frequency mismatch increases? While perceptual illusions have been investigated for more than a century, most studies that investigate the influence of parameters on motion perception have assumed that the actuators used at two body locations are identical and therefore produced vibrations with the same amplitude and frequency. We ran two experiments to investigate the effect of mismatching vibratory frequency on the perception of apparent tactile motion. We asked participants to judge the tactile motion direction while the frequency was mismatched, the perceived intensity was normalized, and the distance between actuators and timing parameters were fixed. We simulated having actuators with different properties by changing the frequency and amplitude of the vibration pulses produced by a wide-band actuator. We varied frequencies in a range from 50 to 250 Hz and adjusted the amplitude to normalize the perceived intensity. The results suggest that the apparent tactile motion illusion is robust to mismatches in resonant frequency of actuators and that it can therefore be used with haptic devices manufactured with different specifications.

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Apparent Movement in Vibrotactile Displays

Cited by 10 publications

References 6 publications

Tactile apparent movement: The effects of number of stimulators.

Tactile apparent movement: The effects of number of stimulators.

Vibrotactile localization on the abdomen: Effects of place and space

Effect of Vibration Frequency Mismatch on Apparent Tactile Motion

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