Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816174
Anna Metzger, M. Toscani, Matteo Valsecchi, K. Drewing
Haptic search is a common every day task. Here we characterize the movement dynamics in haptic search. Participants searched for a particular configuration of symbols on a tactile display. We compared the exploratory behavior of the fingers in proximity to potential targets: when any of the fingers encountered a potential target, there was higher probability that subsequent exploration was performed by the index or the middle finger. At the same time, the middle and the index fingers dramatically slowed down. Being in contact with the potential target, the index and the middle finger moved in around a smaller area than the other fingers, which rather seemed to move away to leave them space. Our results corroborate a previous hypothesis [1] that haptic search consists of two phases: a process of target search using all fingers, and a target analysis using the middle and the index finger, which might be specialized for fine analysis.
{"title":"Dynamics of exploration in haptic search*","authors":"Anna Metzger, M. Toscani, Matteo Valsecchi, K. Drewing","doi":"10.1109/WHC.2019.8816174","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816174","url":null,"abstract":"Haptic search is a common every day task. Here we characterize the movement dynamics in haptic search. Participants searched for a particular configuration of symbols on a tactile display. We compared the exploratory behavior of the fingers in proximity to potential targets: when any of the fingers encountered a potential target, there was higher probability that subsequent exploration was performed by the index or the middle finger. At the same time, the middle and the index fingers dramatically slowed down. Being in contact with the potential target, the index and the middle finger moved in around a smaller area than the other fingers, which rather seemed to move away to leave them space. Our results corroborate a previous hypothesis [1] that haptic search consists of two phases: a process of target search using all fingers, and a target analysis using the middle and the index finger, which might be specialized for fine analysis.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"36 1","pages":"277-282"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75512503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816152
P. Sharma, Akansha Pio Pio Britto, N. Aggarwal, B. Hughes
In two experiments we investigated blindfolded, sighted participants’ capacity to extract the number of raised dots from arrays of braille cells via active touch. The arrays could contain between one and 12 raised dots and estimates were based on scanning with one or more fingers on one or both hands (Experiment 1), or when the dots were as spatially compact or as spatially separated as the braille code permits (Experiment 2). We found participants’ estimates of numerosity increased in a strongly linear fashion with actual numerosity, and confidence in the judgment declined linearly with increasing numerosity. Finger combinations made no difference to accuracy, errors, or confidence. Spatially compacting the configuration of dots had the effect of diminishing perceptual accuracy, exaggerating underestimation and reducing confidence. We found partial evidence that perceptual accuracy was particularly high with up to six raised dots but beyond six, accuracy and confidence both diminished and variance increased. We interpret the results in terms of haptic information processing demands in space and time.
{"title":"Raised dot number perception (subitizing?) via haptic exploration*","authors":"P. Sharma, Akansha Pio Pio Britto, N. Aggarwal, B. Hughes","doi":"10.1109/WHC.2019.8816152","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816152","url":null,"abstract":"In two experiments we investigated blindfolded, sighted participants’ capacity to extract the number of raised dots from arrays of braille cells via active touch. The arrays could contain between one and 12 raised dots and estimates were based on scanning with one or more fingers on one or both hands (Experiment 1), or when the dots were as spatially compact or as spatially separated as the braille code permits (Experiment 2). We found participants’ estimates of numerosity increased in a strongly linear fashion with actual numerosity, and confidence in the judgment declined linearly with increasing numerosity. Finger combinations made no difference to accuracy, errors, or confidence. Spatially compacting the configuration of dots had the effect of diminishing perceptual accuracy, exaggerating underestimation and reducing confidence. We found partial evidence that perceptual accuracy was particularly high with up to six raised dots but beyond six, accuracy and confidence both diminished and variance increased. We interpret the results in terms of haptic information processing demands in space and time.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"83 1","pages":"103-108"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76132282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816175
M. Jamalzadeh, Burak Güçlü, Yasemin Vardar, C. Basdogan
Masking has been used to study human perception of tactile stimuli, including those created on haptic touch screens. Earlier studies have investigated the effect of in-site masking on tactile perception of electrovibration. In this study, we investigated whether it is possible to change the detection threshold of electrovibration at fingertip of index finger via remote masking, i.e. by applying a (mechanical) vibrotactile stimulus on the proximal phalanx of the same finger. The masking stimuli were generated by a voice coil (Haptuator). For eight participants, we first measured the detection thresholds for electrovibration at the fingertip and for vibrotactile stimuli at the proximal phalanx. Then, the vibrations on the skin were measured at four different locations on the index finger of subjects to investigate how the mechanical masking stimulus propagated as the masking level was varied. Finally, electrovibration thresholds were measured in the presence of vibrotactile masking stimuli. Our results show that vibrotactile masking stimuli generated sub-threshold vibrations around fingertip and, hence, probably did not mechanically interfere with the electrovibration stimulus. However, there was a clear psychophysical masking effect due to central neural processes. Electrovibration absolute threshold increased approximately 0.19 dB for each dB increase in the masking level.
{"title":"Effect of Remote Masking on Detection of Electrovibration","authors":"M. Jamalzadeh, Burak Güçlü, Yasemin Vardar, C. Basdogan","doi":"10.1109/WHC.2019.8816175","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816175","url":null,"abstract":"Masking has been used to study human perception of tactile stimuli, including those created on haptic touch screens. Earlier studies have investigated the effect of in-site masking on tactile perception of electrovibration. In this study, we investigated whether it is possible to change the detection threshold of electrovibration at fingertip of index finger via remote masking, i.e. by applying a (mechanical) vibrotactile stimulus on the proximal phalanx of the same finger. The masking stimuli were generated by a voice coil (Haptuator). For eight participants, we first measured the detection thresholds for electrovibration at the fingertip and for vibrotactile stimuli at the proximal phalanx. Then, the vibrations on the skin were measured at four different locations on the index finger of subjects to investigate how the mechanical masking stimulus propagated as the masking level was varied. Finally, electrovibration thresholds were measured in the presence of vibrotactile masking stimuli. Our results show that vibrotactile masking stimuli generated sub-threshold vibrations around fingertip and, hence, probably did not mechanically interfere with the electrovibration stimulus. However, there was a clear psychophysical masking effect due to central neural processes. Electrovibration absolute threshold increased approximately 0.19 dB for each dB increase in the masking level.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"118 1","pages":"229-234"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75771484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816074
Xiao Xu, E. Steinbach
This paper extends the state-of-the-art multi-Dof time domain passivity approach (TDPA), leading to more flexible usability and improved user experience in time-delayed teleoperation. TDPA is an effective method to guarantee stable teleoperation in the presence of communication delay. As the TDPA has gained increasing attention, several studies have focused on extending the originally proposed one-degree-of-freedom (1-Dof) TDPA to multi-Dof. In this paper, we describe that the existing multi-Dof TDPA introduces additional distortions which do not appear in the 1-Dof TDPA. More specifically, motion in one direction can cause distortion (force fluctuation and position drift) even perpendicular to the motion. We name this phenomenon cross-dimensional artifact (CDA). The CDA leads to disturbed teleoperation control and degraded user experience. To address this issue, we first offer a deep analysis of this CDA. Then, we propose a projection-based multi-Dof TDPA extension and suggest a corresponding adaptation to eliminate the CDA. Subjective experiments show that the proposed adaptation is able to remove the distortions caused by the CDA and improve the user experience for sliding tasks and perceiving object surface features.
{"title":"Elimination of Cross-dimensional Artifacts in the Multi-Dof Time Domain Passivity Approach for Time-delayed Teleoperation with Haptic Feedback","authors":"Xiao Xu, E. Steinbach","doi":"10.1109/WHC.2019.8816074","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816074","url":null,"abstract":"This paper extends the state-of-the-art multi-Dof time domain passivity approach (TDPA), leading to more flexible usability and improved user experience in time-delayed teleoperation. TDPA is an effective method to guarantee stable teleoperation in the presence of communication delay. As the TDPA has gained increasing attention, several studies have focused on extending the originally proposed one-degree-of-freedom (1-Dof) TDPA to multi-Dof. In this paper, we describe that the existing multi-Dof TDPA introduces additional distortions which do not appear in the 1-Dof TDPA. More specifically, motion in one direction can cause distortion (force fluctuation and position drift) even perpendicular to the motion. We name this phenomenon cross-dimensional artifact (CDA). The CDA leads to disturbed teleoperation control and degraded user experience. To address this issue, we first offer a deep analysis of this CDA. Then, we propose a projection-based multi-Dof TDPA extension and suggest a corresponding adaptation to eliminate the CDA. Subjective experiments show that the proposed adaptation is able to remove the distortions caused by the CDA and improve the user experience for sliding tasks and perceiving object surface features.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"29 1","pages":"223-228"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81245714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816090
De-Ru Tsai, W. Hsu
A new type of a large-area multi-touch tactile device operated by electrotactile stimulation is proposed. Being able to stimulate as many types of mechanoreceptors as possible, the use of electrical stimulation is widespread. However, the area of a device is usually limited because the more electrodes a device is composed of, the more difficult wires are placed if we want to deliver different signals to different regions of one touch panel simultaneously. To get closer to the possibility of integrating multi-touch tactile devices operated by electrotactile stimulation into smartphones or other flat-panel displays, this paper focuses on developing a large-area electrotactile display device driven by electrotactile stimulation that can fully cover smartphones, which has the advantages of larger touched area and better resolution comparing to traditional ones. It is also capable of delivering different stimulation simultaneously on the same surface. The new type of touch panel with cathodes-surrounding anodes taking responsibility for delivering signals and cathodes playing the role of switches to divide signals.
{"title":"A new type of a large-area multi-touch tactile device operated by electrotactile stimulation","authors":"De-Ru Tsai, W. Hsu","doi":"10.1109/WHC.2019.8816090","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816090","url":null,"abstract":"A new type of a large-area multi-touch tactile device operated by electrotactile stimulation is proposed. Being able to stimulate as many types of mechanoreceptors as possible, the use of electrical stimulation is widespread. However, the area of a device is usually limited because the more electrodes a device is composed of, the more difficult wires are placed if we want to deliver different signals to different regions of one touch panel simultaneously. To get closer to the possibility of integrating multi-touch tactile devices operated by electrotactile stimulation into smartphones or other flat-panel displays, this paper focuses on developing a large-area electrotactile display device driven by electrotactile stimulation that can fully cover smartphones, which has the advantages of larger touched area and better resolution comparing to traditional ones. It is also capable of delivering different stimulation simultaneously on the same surface. The new type of touch panel with cathodes-surrounding anodes taking responsibility for delivering signals and cathodes playing the role of switches to divide signals.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"111 1","pages":"313-318"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77065733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816172
S. Papetti, Martin Fröhlich, S. Schiesser
The TouchBox is a low-cost human-computer interface yielding advanced auditory and vibrotactile feedback, made available in open-source form. It offers affordances similar to small touchscreens and isometric pointing devices as it tracks the position of up to two finger-pads in contact with its top surface, measures their contact areas as well as the applied normal and lateral forces. The interface is the result of several design iterations that on the one hand optimized its sensing accuracy and output reliability, and on the other hand expanded its input capabilities so as to measure various quantities relevant to everyday finger-based interaction. Applications range from using the interface as a calibrated measurement device to advanced human-machine interaction.
{"title":"The TouchBox: an open-source audio-haptic device for finger-based interaction","authors":"S. Papetti, Martin Fröhlich, S. Schiesser","doi":"10.1109/WHC.2019.8816172","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816172","url":null,"abstract":"The TouchBox is a low-cost human-computer interface yielding advanced auditory and vibrotactile feedback, made available in open-source form. It offers affordances similar to small touchscreens and isometric pointing devices as it tracks the position of up to two finger-pads in contact with its top surface, measures their contact areas as well as the applied normal and lateral forces. The interface is the result of several design iterations that on the one hand optimized its sensing accuracy and output reliability, and on the other hand expanded its input capabilities so as to measure various quantities relevant to everyday finger-based interaction. Applications range from using the interface as a calibrated measurement device to advanced human-machine interaction.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"15 1","pages":"491-496"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81836141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816103
Steven Cutlip, J. Freudenberg, N. Cowan, R. Gillespie
According to the internal model principle from control engineering, error feedback together with a controller containing an internal model that generates an expected disturbance signal can achieve perfect delay-tolerant disturbance rejection using only modest loop gains. While internal models of plant dynamics have been central to the study of human motor control, internal models of reference or disturbance signal generators have received very little attention. In this paper we show how the internal model principle suggests a certain control strategy for achieving steady oscillatory motion in a virtual spring-mass. The strategy relies on haptic feedback in its dual roles of carrying power and information and this dual reliance may be used to derive numerous testable hypotheses. We present results from an initial study involving N=5 human subjects in which high time-correlation between surface electromyography and commanded torque signals suggests the adoption of a control strategy based on the internal model principle.
{"title":"Haptic Feedback and the Internal Model Principle","authors":"Steven Cutlip, J. Freudenberg, N. Cowan, R. Gillespie","doi":"10.1109/WHC.2019.8816103","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816103","url":null,"abstract":"According to the internal model principle from control engineering, error feedback together with a controller containing an internal model that generates an expected disturbance signal can achieve perfect delay-tolerant disturbance rejection using only modest loop gains. While internal models of plant dynamics have been central to the study of human motor control, internal models of reference or disturbance signal generators have received very little attention. In this paper we show how the internal model principle suggests a certain control strategy for achieving steady oscillatory motion in a virtual spring-mass. The strategy relies on haptic feedback in its dual roles of carrying power and information and this dual reliance may be used to derive numerous testable hypotheses. We present results from an initial study involving N=5 human subjects in which high time-correlation between surface electromyography and commanded torque signals suggests the adoption of a control strategy based on the internal model principle.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"253 1","pages":"568-573"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79457217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816173
Massimiliano Di Luca, Arash Mahnan
The goal of this work is to establish the range of visual-haptic asynchronies that go unnoticed when touching an object. To perform a psychophysical study, however, we would need asynchronous visual-haptic stimuli, but because the contact of the finger with a real object inevitably creates synchronized haptic feedback, here we employ instead a virtual reproduction of the interaction. Participants immersed in a realistic Virtual Reality environment tapped on a virtual object with their index while viewing a fully articulated representation of their hand. Upon tapping, they received haptic feedback in the form of vibration at their fingertip. After each tap, participants judged whether they perceived the view of the contact and the haptic signal to be synchronous or asynchronous and they also reported which of the two seemed to happen first. Despite the difference between the two judgments, results indicate that none of the 19 participants could reliably detect the asynchrony if haptic feedback was presented less than 50ms after the view of the contact with an object. The asynchrony tolerated for haptic before visual feedback was instead only 15ms. These findings can be used as guidelines for haptic feedback in hand-based interactions in Virtual Reality.
{"title":"Perceptual Limits of Visual-Haptic Simultaneity in Virtual Reality Interactions","authors":"Massimiliano Di Luca, Arash Mahnan","doi":"10.1109/WHC.2019.8816173","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816173","url":null,"abstract":"The goal of this work is to establish the range of visual-haptic asynchronies that go unnoticed when touching an object. To perform a psychophysical study, however, we would need asynchronous visual-haptic stimuli, but because the contact of the finger with a real object inevitably creates synchronized haptic feedback, here we employ instead a virtual reproduction of the interaction. Participants immersed in a realistic Virtual Reality environment tapped on a virtual object with their index while viewing a fully articulated representation of their hand. Upon tapping, they received haptic feedback in the form of vibration at their fingertip. After each tap, participants judged whether they perceived the view of the contact and the haptic signal to be synchronous or asynchronous and they also reported which of the two seemed to happen first. Despite the difference between the two judgments, results indicate that none of the 19 participants could reliably detect the asynchrony if haptic feedback was presented less than 50ms after the view of the contact with an object. The asynchrony tolerated for haptic before visual feedback was instead only 15ms. These findings can be used as guidelines for haptic feedback in hand-based interactions in Virtual Reality.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"49 1","pages":"67-72"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88691818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816129
Ryuya Omori, Yoshihiro Kuroda, Shunsuke Yoshimoto, O. Oshiro
Motion instruction is indispensable for improving skills such as sports and dance. Presenting force and tactile information to humans makes it possible to directly teach motion information; however, existing research for the lower limbs is primarily for walking navigation, since the degree of freedom is only one in navigating directions. In this study, we propose a system that induces leg movement by rotating three end effectors with servomotors. It is possible to induce both translational and rotational motions of the leg by rotating three end effectors. The slip between the end effector and the skin is a significant issue in displaying force. Thus, we aim to examine the effect of the end effector’s curvature on the slip occurrence. In the experiment, the contact area and the shearing force were evaluated when the curvature of the end effector was changed. We confirmed that the effect of the slip could be lessened by increasing the radius of the end effector curvature.
{"title":"A Wearable Skin Stretch Device for Lower Limbs: Investigation of Curvature Effect on Slip","authors":"Ryuya Omori, Yoshihiro Kuroda, Shunsuke Yoshimoto, O. Oshiro","doi":"10.1109/WHC.2019.8816129","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816129","url":null,"abstract":"Motion instruction is indispensable for improving skills such as sports and dance. Presenting force and tactile information to humans makes it possible to directly teach motion information; however, existing research for the lower limbs is primarily for walking navigation, since the degree of freedom is only one in navigating directions. In this study, we propose a system that induces leg movement by rotating three end effectors with servomotors. It is possible to induce both translational and rotational motions of the leg by rotating three end effectors. The slip between the end effector and the skin is a significant issue in displaying force. Thus, we aim to examine the effect of the end effector’s curvature on the slip occurrence. In the experiment, the contact area and the shearing force were evaluated when the curvature of the end effector was changed. We confirmed that the effect of the slip could be lessened by increasing the radius of the end effector curvature.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"58 1","pages":"37-42"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88268781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816120
Sung Y. Kim, Janelle P. Clark, P. Kortum, M. O'Malley
Wearable haptic devices that convey skin stretch have been used in a broad range of applications, from prosthesis proprioception to language transmission. Despite their prevalence, rigorous evaluation of the perception of skin stretch cues is still ongoing. Prior studies indicate that skin stretch cue presentation velocity may impact cue perception, but we lack quantitative data regarding the impact of skin stretch velocity on cue perceptibility. It is important to understand the impact of presentation velocity to ensure the haptic cues are delivered in the most salient manner. In this paper, the Method of Constant Stimuli and Likert surveys were used to capture the just noticeable difference (JND) and participant impressions for two rotational velocities of the Rice Haptic Rocker. The velocities tested did not affect the JND; however, participants reported the faster speed was easier to discern. This study suggests skin stretch devices can be expected to maintain their perceptual performance at varying actuation speeds, meeting the requirements of a variety of applications.
{"title":"The Influence of Cue Presentation Velocity on Skin Stretch Perception","authors":"Sung Y. Kim, Janelle P. Clark, P. Kortum, M. O'Malley","doi":"10.1109/WHC.2019.8816120","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816120","url":null,"abstract":"Wearable haptic devices that convey skin stretch have been used in a broad range of applications, from prosthesis proprioception to language transmission. Despite their prevalence, rigorous evaluation of the perception of skin stretch cues is still ongoing. Prior studies indicate that skin stretch cue presentation velocity may impact cue perception, but we lack quantitative data regarding the impact of skin stretch velocity on cue perceptibility. It is important to understand the impact of presentation velocity to ensure the haptic cues are delivered in the most salient manner. In this paper, the Method of Constant Stimuli and Likert surveys were used to capture the just noticeable difference (JND) and participant impressions for two rotational velocities of the Rice Haptic Rocker. The velocities tested did not affect the JND; however, participants reported the faster speed was easier to discern. This study suggests skin stretch devices can be expected to maintain their perceptual performance at varying actuation speeds, meeting the requirements of a variety of applications.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"41 1","pages":"485-490"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86884585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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