Pub Date : 2019-07-01DOI: 10.1109/WHC.2019.8816155
Yoshihiro Tanaka, T. Hasegawa, Masatoshi Hashimoto, T. Igarashi
Tactile sensations are based on stimulation elicited on the skin through mechanical interaction between the skin and an object. It is important to consider skin properties in addition to the object. We developed a wearable skin vibration sensor and previously showed the availability for texture evaluations. However, the sensor output is not reproducible because human skin cannot maintain the same condition. Thus, we propose using artificial fingers. The artificial finger is worn on a human finger and the skin vibration sensor is wrapped on the artificial finger in the same way as the sensor would be mounted on a human finger. The artificial finger consists of a rigid base, a soft layer, and a thin layer having ridge on the surface, and can be easily exchanged to other finger with different properties. Experiments with different artificial fingers for particle surfaces show that the sensor output has a relation with particle size, and the height of the ridge influences the intensity of the sensor output and the groove width influences the peak frequency and the measuring range. Results indicate that the proposed artificial finger might be useful for tactile evaluations, reflecting different skin properties and customizing towards target objects and users.
{"title":"Artificial Fingers Wearing Skin Vibration Sensor for Evaluating Tactile Sensations*","authors":"Yoshihiro Tanaka, T. Hasegawa, Masatoshi Hashimoto, T. Igarashi","doi":"10.1109/WHC.2019.8816155","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816155","url":null,"abstract":"Tactile sensations are based on stimulation elicited on the skin through mechanical interaction between the skin and an object. It is important to consider skin properties in addition to the object. We developed a wearable skin vibration sensor and previously showed the availability for texture evaluations. However, the sensor output is not reproducible because human skin cannot maintain the same condition. Thus, we propose using artificial fingers. The artificial finger is worn on a human finger and the skin vibration sensor is wrapped on the artificial finger in the same way as the sensor would be mounted on a human finger. The artificial finger consists of a rigid base, a soft layer, and a thin layer having ridge on the surface, and can be easily exchanged to other finger with different properties. Experiments with different artificial fingers for particle surfaces show that the sensor output has a relation with particle size, and the height of the ridge influences the intensity of the sensor output and the groove width influences the peak frequency and the measuring range. Results indicate that the proposed artificial finger might be useful for tactile evaluations, reflecting different skin properties and customizing towards target objects and users.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"140 1","pages":"377-382"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78198893","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.2019.8816124
Diana Angelica Torres Guzman, B. Lemaire-Semail, Anis Kaci, F. Giraud, M. Amberg
In this paper, a psychophysical experiment is designed and setup to perform the comparison between lateral and normal ultrasonic vibration for friction modulation on haptic devices at the same vibration amplitudes. Thanks to a simple analytical modelling relying on mechanical contact, the results obtained are explained. A parametric analysis of this comparison is then performed.
{"title":"Comparison Between Normal and Lateral Vibration on Surface Haptic Devices","authors":"Diana Angelica Torres Guzman, B. Lemaire-Semail, Anis Kaci, F. Giraud, M. Amberg","doi":"10.1109/WHC.2019.8816124","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816124","url":null,"abstract":"In this paper, a psychophysical experiment is designed and setup to perform the comparison between lateral and normal ultrasonic vibration for friction modulation on haptic devices at the same vibration amplitudes. Thanks to a simple analytical modelling relying on mechanical contact, the results obtained are explained. A parametric analysis of this comparison is then performed.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"104 1","pages":"199-204"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76322029","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.2019.8816165
Hyungki Son, Inwook Hwang, Tae-Heon Yang, Seungmoon Choi, Sang-Youn Kim, Jin Ryong Kim
We present RealWalk, a pair of haptic shoes for HMD-based VR, designed to create realistic sensations of ground surface deformation and texture through MR fluid actuators. RealWalk offers a novel interaction scheme through the physical interaction between the shoes and the ground surfaces while walking in VR. Each shoe consists of two MR fluid actuators, an insole pressure sensor, and a foot position tracker. When a user steps on the ground with the shoes, the two MR fluid actuators are depressed, creating a variety of ground material deformation such as snow, mud, and dry sand by changing its viscosity. We build an interactive VR application and compare RealWalk with vibrotactile-based haptic shoes to investigate its effectiveness. We report that, compared to vibrotactile-haptic shoes, RealWalk provides higher ratings for discrimination, realism, and satisfaction. We also report qualitative user feedback for their experiences.
{"title":"RealWalk: Haptic Shoes Using Actuated MR Fluid for Walking in VR","authors":"Hyungki Son, Inwook Hwang, Tae-Heon Yang, Seungmoon Choi, Sang-Youn Kim, Jin Ryong Kim","doi":"10.1109/WHC.2019.8816165","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816165","url":null,"abstract":"We present RealWalk, a pair of haptic shoes for HMD-based VR, designed to create realistic sensations of ground surface deformation and texture through MR fluid actuators. RealWalk offers a novel interaction scheme through the physical interaction between the shoes and the ground surfaces while walking in VR. Each shoe consists of two MR fluid actuators, an insole pressure sensor, and a foot position tracker. When a user steps on the ground with the shoes, the two MR fluid actuators are depressed, creating a variety of ground material deformation such as snow, mud, and dry sand by changing its viscosity. We build an interactive VR application and compare RealWalk with vibrotactile-based haptic shoes to investigate its effectiveness. We report that, compared to vibrotactile-haptic shoes, RealWalk provides higher ratings for discrimination, realism, and satisfaction. We also report qualitative user feedback for their experiences.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"14 1","pages":"241-246"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84919519","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.2019.8816080
Esther I. Zoller, P. Cattin, A. Zam, G. Rauter
Orientational misalignment between the master and slave devices in teleoperation leads to decreased task performance. Such a misalignment occurs for example when indexing is applied to rotational degrees of freedom of the master device. In this context, the handle of the telemanipulator on the master side seems to play a crucial role and should be designed in a way that allows users to reach the rotational workspace necessary for the task at hand. Therefore, in this study we investigated the reachable rotational workspace for and the usability of different grasp type handles mounted to a lambda.6 device. We could show a clear difference in the functional rotational workspace that nine naive participants could reach with nine different grasp type handles. For example, the biggest pitch / yaw workspace was reached with the fixed hook and quadpod grasp handles. The differences between the handles were robust despite a high interpersonal variability for both the functional pitch / yaw and roll workspaces for many grasp type handles. According to these results, telemanipulator handles must be chosen carefully with respect to the target application.
{"title":"Assessment of the Functional Rotational Workspace of Different Grasp Type Handles for the lambda.6 Haptic Device*","authors":"Esther I. Zoller, P. Cattin, A. Zam, G. Rauter","doi":"10.1109/WHC.2019.8816080","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816080","url":null,"abstract":"Orientational misalignment between the master and slave devices in teleoperation leads to decreased task performance. Such a misalignment occurs for example when indexing is applied to rotational degrees of freedom of the master device. In this context, the handle of the telemanipulator on the master side seems to play a crucial role and should be designed in a way that allows users to reach the rotational workspace necessary for the task at hand. Therefore, in this study we investigated the reachable rotational workspace for and the usability of different grasp type handles mounted to a lambda.6 device. We could show a clear difference in the functional rotational workspace that nine naive participants could reach with nine different grasp type handles. For example, the biggest pitch / yaw workspace was reached with the fixed hook and quadpod grasp handles. The differences between the handles were robust despite a high interpersonal variability for both the functional pitch / yaw and roll workspaces for many grasp type handles. According to these results, telemanipulator handles must be chosen carefully with respect to the target application.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"1863 1","pages":"127-132"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89946139","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.2019.8816101
Mitsuru Ito, Yuji Kokumai, H. Shinoda
In this study, we propose a method to create a quasi-click sensation in midair based on two types of tactile stimulation methods that create different sensations both in the intensity and quality. We consider two-layers of regions in the space that forms a virtual button. A user’s hand is tracked by a sensor and stimulated by the two methods according to the hand position. When the user’s hand is in the upper or lower layer, the hand skin is stimulated weakly or strongly by the two methods, respectively. These two states indicate a neutral position and action completion. This midair click was enabled by a recent finding where an ultrasound focus motion on the skin produced a stronger perception than amplitude modulation given at a constant position. We conducted experiments to confirm whether two haptic layers can be perceived. In addition, we investigated whether a blind operation of button selection can be performed.
{"title":"Midair Click of Dual-Layer Haptic Button","authors":"Mitsuru Ito, Yuji Kokumai, H. Shinoda","doi":"10.1109/WHC.2019.8816101","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816101","url":null,"abstract":"In this study, we propose a method to create a quasi-click sensation in midair based on two types of tactile stimulation methods that create different sensations both in the intensity and quality. We consider two-layers of regions in the space that forms a virtual button. A user’s hand is tracked by a sensor and stimulated by the two methods according to the hand position. When the user’s hand is in the upper or lower layer, the hand skin is stimulated weakly or strongly by the two methods, respectively. These two states indicate a neutral position and action completion. This midair click was enabled by a recent finding where an ultrasound focus motion on the skin produced a stronger perception than amplitude modulation given at a constant position. We conducted experiments to confirm whether two haptic layers can be perceived. In addition, we investigated whether a blind operation of button selection can be performed.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"4 1","pages":"349-352"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86545091","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.2019.8816073
F. E. V. Beek, Raymond J. King, Casey Brown, Massimiliano Di Luca
In this study, we examined the contributions of kinesthetic and skin stretch cues, in isolation and together, to the static perception of weight. In two psychophysical experiments, we asked participants either to detect on which hand a weight was presented or to compare between two weight cues. Two closed-loop controlled haptic devices were used to present weights with a precision of 0.05g to an end-effector held in a pinch grasp. Our results show that combining skin stretch and kinesthetic information leads to better weight detection thresholds than presenting uni-sensory cues does. For supra-threshold stimuli, Weber fractions ranged from 22-44%. Kinesthetic information was less reliable for lighter weights, while both sources of information were equally reliable for weights up to 300g. Our data for lighter weights complied with an Optimal Integration model, while for heavier weights, measurements were closer to predictions from a Sensory Capture model. The difference might be accounted for by the presence of correlated noise across the two cues with heavier weights, which would affect model predictions such that all our data could be explained through an Optimal Integration model. Our experiments provide device-independent measures that can be used to inform, for instance, skin stretch device design.
{"title":"The contributions of skin stretch and kinesthetic information to static weight perception","authors":"F. E. V. Beek, Raymond J. King, Casey Brown, Massimiliano Di Luca","doi":"10.1109/WHC.2019.8816073","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816073","url":null,"abstract":"In this study, we examined the contributions of kinesthetic and skin stretch cues, in isolation and together, to the static perception of weight. In two psychophysical experiments, we asked participants either to detect on which hand a weight was presented or to compare between two weight cues. Two closed-loop controlled haptic devices were used to present weights with a precision of 0.05g to an end-effector held in a pinch grasp. Our results show that combining skin stretch and kinesthetic information leads to better weight detection thresholds than presenting uni-sensory cues does. For supra-threshold stimuli, Weber fractions ranged from 22-44%. Kinesthetic information was less reliable for lighter weights, while both sources of information were equally reliable for weights up to 300g. Our data for lighter weights complied with an Optimal Integration model, while for heavier weights, measurements were closer to predictions from a Sensory Capture model. The difference might be accounted for by the presence of correlated noise across the two cues with heavier weights, which would affect model predictions such that all our data could be explained through an Optimal Integration model. Our experiments provide device-independent measures that can be used to inform, for instance, skin stretch device design.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"96 1","pages":"235-240"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88313168","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.2019.8816146
C. Parthiban, P. Dills, It Fufuengsin, Nick Colonnese, Priyanshu Agarwal, M. Zinn
Hybrid actuation approaches for haptic interfaces generally suffer from asymmetry in active and passive torque capabilities. This paper describes the design of a high-performance balanced hybrid haptic device, which addresses the asymmetry by combining a high-power, low-impedance active compliant actuation (series-elastic actuator) with energy absorbing high-force passive actuation in parallel with a fast, low-power secondary active actuation. We describe the actuation, design and control approaches and experimentally validate the approach with a one degree-of-freedom testbed. The performance is compared with active only approach and results show significant improvements in stability and rendering range of the device.
{"title":"A Balanced Hybrid Active-Passive Actuation Approach for High-Performance Haptics","authors":"C. Parthiban, P. Dills, It Fufuengsin, Nick Colonnese, Priyanshu Agarwal, M. Zinn","doi":"10.1109/WHC.2019.8816146","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816146","url":null,"abstract":"Hybrid actuation approaches for haptic interfaces generally suffer from asymmetry in active and passive torque capabilities. This paper describes the design of a high-performance balanced hybrid haptic device, which addresses the asymmetry by combining a high-power, low-impedance active compliant actuation (series-elastic actuator) with energy absorbing high-force passive actuation in parallel with a fast, low-power secondary active actuation. We describe the actuation, design and control approaches and experimentally validate the approach with a one degree-of-freedom testbed. The performance is compared with active only approach and results show significant improvements in stability and rendering range of the device.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"94 5 1","pages":"283-288"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87671486","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.2019.8816092
Euan Freeman, Dong-Bach Vo, S. Brewster
We present HaptiGlow, a technique that combines ultrasound haptics with peripheral visual feedback to help users find where to place their hand for improved mid-air interaction. Hand position is important. If a user’s hand is poorly placed, input sensors may have difficulty recognising their gestures. Mid-air haptic feedback is also hard to perceive when the hand is in a poor position. Our novel feedback addresses this important usability problem. Our results show the combination of ultrasound haptics and peripheral visuals is effective, with the strengths of each leading to accurate (23mm) and fast (4.6s) guidance in a 3D targeting task. Our technique improves midair interaction by easily helping users find a good hand position.
{"title":"HaptiGlow: Helping Users Position their Hands for Better Mid-Air Gestures and Ultrasound Haptic Feedback","authors":"Euan Freeman, Dong-Bach Vo, S. Brewster","doi":"10.1109/WHC.2019.8816092","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816092","url":null,"abstract":"We present HaptiGlow, a technique that combines ultrasound haptics with peripheral visual feedback to help users find where to place their hand for improved mid-air interaction. Hand position is important. If a user’s hand is poorly placed, input sensors may have difficulty recognising their gestures. Mid-air haptic feedback is also hard to perceive when the hand is in a poor position. Our novel feedback addresses this important usability problem. Our results show the combination of ultrasound haptics and peripheral visuals is effective, with the strengths of each leading to accurate (23mm) and fast (4.6s) guidance in a 3D targeting task. Our technique improves midair interaction by easily helping users find a good hand position.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"1 1","pages":"289-294"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89422022","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.2019.8816150
Gregory Reardon, Yitian Shao, Bharat Dandu, W. Frier, Benjamin Long, Orestis Georgiou, Y. Visell
Tactile stimulation of the skin excites cutaneous waves that travel tens of centimeters, but the implications for haptic engineering and perception are not well understood. We present evidence from optical vibrometry that tactile motion cues delivered via air-coupled ultrasound excite complex spatiotemporal wave fields in the hand. We distinguished two physical regimes based on the ratio of the motion speed to the cutaneous wave speed. At low speeds (1-4 m/s), waves generated by a moving stimulus propagated to similar distances in all directions. At high speeds (4-15 m/s), waves in the direction of motion were compressed. We also studied tactile motion perception at these speeds, which were faster than those used in prior studies. Motion sensitivity was impaired when waves were inhibited in front of the moving stimulus. This occurred for motion at high speeds and across disconnected skin areas. Together, our findings suggest that tactile motion perception is aided by waves propagating in the skin. This paper presents the first time-resolved observations of cutaneous responses to focused ultrasound, and contributes practical knowledge for the use of tactile motion and mid-air haptic feedback.
{"title":"Cutaneous Wave Propagation Shapes Tactile Motion: Evidence from Air-Coupled Ultrasound","authors":"Gregory Reardon, Yitian Shao, Bharat Dandu, W. Frier, Benjamin Long, Orestis Georgiou, Y. Visell","doi":"10.1109/WHC.2019.8816150","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816150","url":null,"abstract":"Tactile stimulation of the skin excites cutaneous waves that travel tens of centimeters, but the implications for haptic engineering and perception are not well understood. We present evidence from optical vibrometry that tactile motion cues delivered via air-coupled ultrasound excite complex spatiotemporal wave fields in the hand. We distinguished two physical regimes based on the ratio of the motion speed to the cutaneous wave speed. At low speeds (1-4 m/s), waves generated by a moving stimulus propagated to similar distances in all directions. At high speeds (4-15 m/s), waves in the direction of motion were compressed. We also studied tactile motion perception at these speeds, which were faster than those used in prior studies. Motion sensitivity was impaired when waves were inhibited in front of the moving stimulus. This occurred for motion at high speeds and across disconnected skin areas. Together, our findings suggest that tactile motion perception is aided by waves propagating in the skin. This paper presents the first time-resolved observations of cutaneous responses to focused ultrasound, and contributes practical knowledge for the use of tactile motion and mid-air haptic feedback.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"37 1","pages":"628-633"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86328546","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.2019.8816122
J. Grosbois, Massimiliano Di Luca, Raymond J. King, Cesare Parise, Mounia Ziat
The deployment of visual spatial attention can be significantly influenced in an exogenous, presumably bottom-up manner. Traditionally, spatial cueing paradigms have been utilized to come to such conclusions. Although these paradigms have primarily made use of visual cues, spatially correspondent tactile cues have also been successfully employed. However, one property of tactile cues not thoroughly explored in this context is the influence of their specific directionality on the subsequent deployment of visual attention. Thus, the current study sought to evaluate the potential utility of small, directional tactile cues as a means to exogenously direct visual spatial attention. Tactile cues were employed by a small shearing of the fingertip’s skin in either the leftward of rightward direction. A modified spatial cueing paradigm was used to compare reaction time performance across both traditional-visual and directionaltactile cues at cue-target onset asynchronies of 100, 200, 400 and 800 ms. The results indicated that both visual and tactile cues mediated the deployment of exogenous visual spatial attention. However, differences between the two modalities were observed in terms of both the magnitude and the pattern of the associated cueing effects. Further, there appeared to be a general rightward bias in performance irrespective of cue modality. Overall, the current work offers preliminary evidence that small, directional tactile stimulation may influence the allocation of attention across space in a manner at least partially distinct to traditional visual cueing tasks. Yet, further research will be required to explicitly determine the underlying mechanisms.
{"title":"Exogenous cueing of visual attention using small, directional, tactile cues applied to the fingertip*","authors":"J. Grosbois, Massimiliano Di Luca, Raymond J. King, Cesare Parise, Mounia Ziat","doi":"10.1109/WHC.2019.8816122","DOIUrl":"https://doi.org/10.1109/WHC.2019.8816122","url":null,"abstract":"The deployment of visual spatial attention can be significantly influenced in an exogenous, presumably bottom-up manner. Traditionally, spatial cueing paradigms have been utilized to come to such conclusions. Although these paradigms have primarily made use of visual cues, spatially correspondent tactile cues have also been successfully employed. However, one property of tactile cues not thoroughly explored in this context is the influence of their specific directionality on the subsequent deployment of visual attention. Thus, the current study sought to evaluate the potential utility of small, directional tactile cues as a means to exogenously direct visual spatial attention. Tactile cues were employed by a small shearing of the fingertip’s skin in either the leftward of rightward direction. A modified spatial cueing paradigm was used to compare reaction time performance across both traditional-visual and directionaltactile cues at cue-target onset asynchronies of 100, 200, 400 and 800 ms. The results indicated that both visual and tactile cues mediated the deployment of exogenous visual spatial attention. However, differences between the two modalities were observed in terms of both the magnitude and the pattern of the associated cueing effects. Further, there appeared to be a general rightward bias in performance irrespective of cue modality. Overall, the current work offers preliminary evidence that small, directional tactile stimulation may influence the allocation of attention across space in a manner at least partially distinct to traditional visual cueing tasks. Yet, further research will be required to explicitly determine the underlying mechanisms.","PeriodicalId":6702,"journal":{"name":"2019 IEEE World Haptics Conference (WHC)","volume":"11 1","pages":"455-460"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91151012","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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