{"title":"I feel it in my fingers! Sense of agency with mid-air haptics","authors":"George Evangelou, Hannah Limerick, James Moore","doi":"10.1109/WHC49131.2021.9517170","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517170","url":null,"abstract":"Recent technological advances incorporate mid- air haptic feedback, enriching sensory experience during touchless virtual interactions. We investigated how this impacts the user’s sense of agency. Sense of agency refers to the feeling of controlling external events through one’s actions and has attracted growing interest from human-computer interaction researchers. This is mainly due to the fact that the user’s experience of control over a system is of primary importance. Here we measured sense of agency during a virtual button- pressing task, where the button press caused a tone outcome to occur after intervals of different durations. We explored the effect of manipulating a) mid-air haptic feedback and b) the latency of the virtual hand’s movement with respect to the actual hand movement. Sense of agency was quantified with implicit and explicit measures. Results showed that haptic feedback increased implicit sense of agency for the longest action-outcome interval length. Results also showed that latency led to a decrease in explicit sense of agency, but that this reduction was attenuated in the presence of haptic feedback. We discuss the implications of these findings, focusing on the idea that haptic feedback can be used to protect, or even increase, users’ experiences of agency in virtual interactions.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132995889","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}
M. Imura, Yoichi Yamazaki, M. Nakatani, Taisuke Okazaki, Rino Uesaki, N. Nagata, Hiroya Tanaka
{"title":"Feature Quantification of Material Softness Perception Using the Force-Displacement Relationship*","authors":"M. Imura, Yoichi Yamazaki, M. Nakatani, Taisuke Okazaki, Rino Uesaki, N. Nagata, Hiroya Tanaka","doi":"10.1109/WHC49131.2021.9517179","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517179","url":null,"abstract":"To establish haptic interchangeability between ordinary materials and metamaterials, the FDDF (Force-induced Displacement Distribution Function) has been proposed for quantifying material properties. This paper describes how material softness is quantified using the FDDF.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122075031","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}
Fuko Yamamura, Taku Tanichi, Yun Suen Pai, K. Minamizawa
{"title":"Comado: Communication System for Ambient Connection between Distance Locations","authors":"Fuko Yamamura, Taku Tanichi, Yun Suen Pai, K. Minamizawa","doi":"10.1109/WHC49131.2021.9517203","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517203","url":null,"abstract":"Current video call systems can facilitate formal conversation, yet they lack the ability to provide users with an informal sense of presence. To this end, we propose Comado, a communication system that creates an ambient connection using online interactive haptic sharing. Outside of face-to-face communication, Comado provides haptic feedback to the desk to convey a sense of presence. From preliminary results, we plan to further improve the design of Comado to be deployed in the wild.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124431384","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}
Müge Cavdan, Robert Ennis, K. Drewing, K. Doerschner
{"title":"Constraining haptic exploration with sensors and gloves hardly changes the multidimensional structure of softness perception","authors":"Müge Cavdan, Robert Ennis, K. Drewing, K. Doerschner","doi":"10.1109/WHC49131.2021.9517138","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517138","url":null,"abstract":"Humans typically interact with the environment using bare hands. However, sometimes this is not possible or not preferred, e.g., when wearing protective gloves for work or sensor gloves in mixed/augmented reality (AR). Also, studying softness is highly important since it makes use of tactile and proprioceptive cues and it might be highly sensitive to restrictions. Here we tested how corresponding haptic constraints affect perceived softness. Participants manually explored and rated 10 materials on 15 sensory adjectives under four constraint conditions: bare hand, open-fingered glove, open-fingered glove with rigid sensors, and full glove. The materials represented extreme values on different softness dimensions; the adjectives were chosen to assess these dimensions. Principal Component Analysis (PCA), Procrustes distances, and correlation analyses showed that across constraint conditions, softness perception is overall highly similar. However, when we inspected responses on a more detailed level, per material-adjective combination, we observed that the full glove condition differed from the others especially for judgments on surface softness. Overall, the results suggest that sensor gloves hardly change the perception of different dimensions of softness if fingertips are left bare.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130347023","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}
{"title":"Factors Affecting the Stable Range of Damping and Mass in Admittance Type Haptic Devices","authors":"K. Gabardi, P. Dills, Bolun Zhang, M. Zinn","doi":"10.1109/WHC49131.2021.9517150","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517150","url":null,"abstract":"This work investigates the stability of admittance type haptic devices in the context of a wider range of impedances than previously considered. More specifically, we consider the stable range of mass and damping. The coupled human driving impedance, actuator position control bandwidth, and loop delay are identified as major factors affecting the range of stable impedances. Finally, theoretical results are experimentally verified using a custom one degree of freedom admittance type haptic device.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128177382","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}
Shariff A. M. Faleel, Bibhushan Raj Joshi, Bradley Rey
{"title":"Writely: Force Feedback for Non-Dominant Hand Writing Training","authors":"Shariff A. M. Faleel, Bibhushan Raj Joshi, Bradley Rey","doi":"10.1109/WHC49131.2021.9517209","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517209","url":null,"abstract":"We propose Writely, a haptic force feedback system that uses Haply force feedback device for training non-dominant hand writing. In this work we have developed two different force feedback modalities, Guidance and Anti-Guidance. Through a preliminary exploration, our early results shed light on the potential of Anti-Guidance and a low cost, planar, haptic device specifically for writing motor skill training.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128272396","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}
{"title":"Identification and Information Transfer of Multidimensional Tactons Presented by a Single Vibrotactile Actuator","authors":"Yongjae Yoo, J. Regimbal, J. Cooperstock","doi":"10.1109/WHC49131.2021.9517169","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517169","url":null,"abstract":"Techniques designed to deliver information to users via the haptic channel often make use of multiple actuators spread over different body locations, sometimes employing multiple haptic modalities (e.g., vibration, skin stretch, temperature) in parallel. Instead, we sought to determine the information transfer capacity of a single vibrotactile actuator. To do so, we designed 90 multidimensional tactons using four parameters: the number of pulses, tempo, frequency, and amplitude, based on prior literature and results of pilot studies. We conducted a two-day experiment with 12 participants, which evaluated their accuracy in identifying each parameter and estimated the information transfer (IT) under continuously repeating and one-shot tacton presentation schemes. Participants achieved identification accuracy of individual parameters of approximately 70% for tempo, frequency, and amplitude, while their identification accuracy for number of pulses reached 90%. Although the overall tacton identification accuracy was only 34.12% and 38.66% for continuous and one-shot presentations, respectively, the high dimensionality of these tactons resulted in an estimated information transfer of 3.06 bits (for one-shot presentation), the highest IT achieved to date using only a single actuator. We provide a detailed analysis of these results, and drawing from the experiment, present guidelines for multidimensional tacton design.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129924881","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}
Louis-Philippe Lebel, Jean-Alexis Verreault, J. L. Bigué, J. Plante, Alexandre Girard
{"title":"Performance Study of Low Inertia Magnetorheological Actuators for Kinesthetic Haptic Devices*","authors":"Louis-Philippe Lebel, Jean-Alexis Verreault, J. L. Bigué, J. Plante, Alexandre Girard","doi":"10.1109/WHC49131.2021.9517201","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517201","url":null,"abstract":"A challenge to high quality virtual reality (VR) simulations is the development of high-fidelity haptic devices that can render a wide range of impedances at both low and high frequencies. To this end, a thorough analytical and experimental assessment of the performance of magnetorheological (MR) actuators is performed and compared to electric motor (EM) actuation. A 2 degrees-of-freedom dynamic model of a kinesthetic haptic device is used to conduct the analytical study comparing the rendering area, rendering bandwidth, gearing and scaling of both technologies. Simulation predictions are corroborated by experimental validation over a wide range of operating conditions. Results show that, for a same output force, MR actuators can render a bandwidth over 52.9% higher than electric motors due to their low inertia. Unlike electric motors, the performance of MR actuators for use in haptic devices are not limited by their output inertia but by their viscous damping, which must be carefully addressed at the design stage.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"25 5-6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133285814","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}
{"title":"A Kalman filter model for predicting discrimination performance in free and restricted haptic explorations","authors":"Anna Metzger, K. Drewing","doi":"10.1109/WHC49131.2021.9517242","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517242","url":null,"abstract":"Haptic exploration of objects usually consists of repeated exploratory movements and our perception of their properties is the result of the integration of information gained during each of these single movements. The serial nature of information integration in haptic perception requires that sensory estimates from single exploratory movements are retained in memory. Here we propose an optimal model for serial integration of information in haptic explorations which considers memory limitations. We tested the model by predicting discrimination performance in free and restricted (fixed number of indentations and varied number of switches between the stimuli) explorations of softness. Our model overall well predicts performance given different exploratory patterns in both free and restricted explorations. The model slightly overestimates performance in the restricted exploration and predictions are accurate in free explorations. These results suggest that integration of information can be well approximated by our model, in particular in free haptic exploration. We further tested whether participants prefer explorations which maximize performance. The model predicts that with constant number of indentations switching between the stimuli increases performance. Our results show that participants increase the number of switches only up to three switches, suggesting a trade-off between muscular switching costs and performance.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121439086","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}
{"title":"The Effect of Freespace Properties on Unilateral Stiffness Classification","authors":"Emma Treadway, Kristian Journet","doi":"10.1109/WHC49131.2021.9517213","DOIUrl":"https://doi.org/10.1109/WHC49131.2021.9517213","url":null,"abstract":"Virtual environments rendered through kinesthetic haptic devices have frequency-dependent dynamic properties that affect perception. Previous studies on the perception of virtual walls have suggested that the properties not only of the wall, but also of the freespace with which it is paired, influence the perceived wall stiffness (bias) and discrimination thresholds. In this work, two experiments were undertaken to examine the effect of mass and damping properties in freespace on virtual wall stiffness classification. The results suggest that there may be alterations to classification performance under large changes in freespace conditions, but that small changes in mass and damping do not appear to significantly affect performance. These results suggest that additional study is needed to fully understand the effects of freespace properties on wall stiffness classification, which may differ from their effects on discrimination or bias.","PeriodicalId":233442,"journal":{"name":"2021 IEEE World Haptics Conference (WHC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117354301","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}