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721 results on '"Konyo, Masashi"'

1. Reproduction of High-frequency Vibration Experience by a Sensory Equivalent Conversion Method for the Standard Haptic SDK of Meta Quest 3

Author

Igarashi, Daito, Konyo, Masashi, and Tadokoro, Satoshi

Subjects
Computer Science - Human-Computer Interaction
Abstract

In recent years, there has been a growing demand for realistic haptic experiences in VR. This study employs the Intensity Segment Modulation (ISM) method to convert high-frequency vibrations into low-frequency amplitude-modulated waves on VR devices. We verified the generation of high-immersion vibration stimuli synchronized with audio. Additionally, we compared the perception of ISM-converted vibrations between VR devices and other devices to evaluate the effectiveness of ISM in VR environments. A demonstration on the Meta Quest 3 was also developed, allowing users to experience the tactile sensation of handheld fireworks., Comment: Part of proceedings of 6th International Conference AsiaHaptics 2024

Published
2024

2. Out-of-body Localization of Virtual Vibration Sources Using a Limited Numbers of Transducers on the Torso

Author

Ohara, Gen, Konyo, Masashi, and Tadokoro, Satoshi

Subjects
Computer Science - Human-Computer Interaction
Abstract

Stereohaptic vibration is an innovative vibrotactile technology that extends the conventional tactile localization to the surrounding space, representing a virtual vibration source in the external environment. Previously, we have developed displays on the forearms and soles. Today, we present a demonstration of a new jacket-type device, which enables localization at any position around the body by arranging multiple vibrators along the torso centered on the midline. In our demonstration, you can experience the footsteps and roars of a inosaur walking around you, and it provides an experience that is as if you are in a fantasy movie., Comment: Part of proceedings of 6th International Conference AsiaHaptics 2024

Published
2024

3. Conveying Surroundings Information of a Robot End-Effector by Adjusting Controller Button Stiffness

Author

Campos, Noel Alejandro Avila, Konyo, Masashi, Bezerra, Ranulfo, Kojima, Shotaro, and Tadokoro, Satoshi

Subjects
Computer Science - Robotics, Computer Science - Human-Computer Interaction
Abstract

This study addresses the challenge of low dexterity in teleoperation tasks caused by limited sensory feedback and visual occlusion. We propose a novel approach that integrates haptic feedback into teleoperation using the adaptive triggers of a commercially available DualSense controller. By adjusting button stiffness based on the proximity of objects to the robot's end effector, the system provides intuitive, real-time feedback to the operator. To achieve this, the effective volume of the end effector is virtually expanded, allowing the system to predict interactions by calculating overlap with nearby objects. This predictive capability is independent of the user's intent or the robot's speed, enhancing the operator's situational awareness without requiring complex pre-programmed behaviors. The stiffness of the adaptive triggers is adjusted in proportion to this overlapping volume, effectively conveying spatial proximity and movement cues through an "one degree of freedom" haptic feedback mechanism. Compared to existing solutions, this method reduces hardware requirements and computational complexity by using a geometric simplification approach, enabling efficient operation with minimal processing demands. Simulation results demonstrate that the proposed system reduces collision risk and improves user performance, offering an intuitive, precise, and safe teleoperation experience despite real-world uncertainties and communication delays., Comment: Part of proceedings of 6th International Conference AsiaHaptics 2024

Published
2024

4. Measurement and Interpolation for Data-Driven Pressure Distribution Rendering on a Finger Pad

Author

Sase, Kazuya, Onodera, Rei, Nagano, Hikaru, and Konyo, Masashi

Subjects
Computer Science - Human-Computer Interaction
Abstract

We propose a data-driven pressure distribution rendering method that uses the interpolation of experimentally obtained pressure values. The pressure data were collected using a pressure sensor array. The prediction was performed using linear interpolation, assuming that the pressure distribution is dependent on pushing displacement and contact angle. Leap Motion Controller was used to implement the prediction based on user input. The proposed prediction model was found to be fast and reproduce the measured data well., Comment: Part of proceedings of 6th International Conference AsiaHaptics 2024

Published
2024

5. Vibrotactile Feedback for a Remote Operated Robot with Noise Subtraction Based on Perceived Intensity

Author

Yamawaki, Ryoma, Shimamura, Takeru, Campos, Noel Alejandro Avila, Konyo, Masashi, Kojima, Shotaro, Bezerra, Ranulfo, and Tadokoro, Satoshi

Subjects
Computer Science - Robotics, Computer Science - Human-Computer Interaction
Abstract

There is a growing demand for teleoperated robots. This paper presents a novel method for reducing vibration noise generated by robot's own motion, which can disrupt the quality of tactile feedback for teleoperated robots. Our approach focuses on perceived intensity, the amount of how humans experience vibration, to create a noise filter that aligns with human perceptual characteristics. This system effectively subtracts ego-noise while preserving the essential tactile signals, ensuring more accurate and reliable haptic feedback for operators. This method offers a refined solution to the challenge of maintaining high-quality tactile feedback in teleoperated systems., Comment: Part of proceedings of 6th International Conference AsiaHaptics 2024

Published
2024

6. Presenting the Sense of Effort through Vibration Based on Force Estimated by Inverse Dynamics in Videos

Author

Akai, Ryoma, Konyo, Masashi, and Tadokoro, Satoshi

Subjects
Computer Science - Human-Computer Interaction
Abstract

We present the sense of effort through vibration to help the video viewer understand how the person in the video moves the body. We suppose sense of effort is related to force, so we generate vibration based on force and present the sense of effort through the vibration. We use perceived intensity to make sense of effort proportional to vibration. In our demonstration, you can experience vibration while watching a video. We can create vibration on the spot, so you can experience vibration made from a video taken on the spot., Comment: Part of proceedings of 6th International Conference AsiaHaptics 2024

Published
2024

7. Skill Transfer System that Visualizes and Presents Tactile Information in an AR Environment

Author

Nida, Takaya, Waga, Masamune, Hamada, Yuta, Konyo, Masashi, Nakaya, Yushi, Pandey, Shubhamkumar, and Tadokoro, Satoshi

Subjects
Computer Science - Human-Computer Interaction
Abstract

In recent years, the lack of successors for traditional skills has become an issue. To solve this problem, we propose a skill transfer system that presents tactile information in spatial tasks as a color map on an AR space. We believe that providing the operator with feedback of the force and tactile information during the work is useful for learning skills that require time to master. Furthermore, by following the operator's hand and presenting tactile information, we expect to accelerate the learning of skills by not only presenting tactile information as a physical sensation, but also by making the operator associate tactile information with position., Comment: Part of proceedings of 6th International Conference AsiaHaptics 2024

Published
2024

8. Improvement of Discrimination of Haptic Motion Experience by Reproducing Multi-point Spatial Distribution of Propagated Vibrations at the Wrist

Author

Yamaguchi, Kosuke, Waga, Masamune, Konyo, Masashi, Tadokoro, Satoshi, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Wang, Dangxiao, editor, Song, Aiguo, editor, Liu, Qian, editor, Kyung, Ki-Uk, editor, Konyo, Masashi, editor, Kajimoto, Hiroyuki, editor, Chen, Lihan, editor, and Ryu, Jee-Hwan, editor

Published
2023
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10. Retraction Mechanism of Soft Torus Robot with a Hydrostatic Skeleton

Author

Takahashi, Tomoya, Watanabe, Masahiro, Tadakuma, Kenjiro, Konyo, Masashi, and Tadokoro, Satoshi

Subjects
Computer Science - Robotics
Abstract

Soft robots have attracted much attention in recent years owing to their high adaptability. Long articulated soft robots enable diverse operations, and tip-extending robots that navigate their environment through growth are highly effective in robotic search applications. Because the robot membrane extends from the tip, these robots can lengthen without friction from the environment. However, the flexibility of the membrane inhibits tip retraction. Two methods have been proposed to resolve this issue; increasing the pressure of the internal fluid to reinforce rigidity, and mounting an actuator at the tip. The disadvantage of the former is that the increase is limited by the membrane pressure resistance, while the second method adds to the robot complexity. In this paper, we present a tip-retraction mechanism without bending motion that takes advantage of the friction from the external environment. Water is used as the internal fluid to increase ground pressure with the environment. We explore the failure pattern of the retraction motion and propose plausible solutions by using hydrostatic skeleton robot. Additionally, we develop a prototype robot that successfully retracts by using the proposed methodology. Our solution can contribute to the advancement of mechanical design in the soft robotics field with applications to soft snakes and manipulators., Comment: 8 pages, 10 figures

Published
2020

12. Internally-Balanced Magnetic Mechanisms Using Magnetic Spring for Producing Large Amplified Clamping Force

Author

Shimizu, Tori, Tadakuma, Kenjiro, Watanabe, Masahiro, Takane, Eri, Konyo, Masashi, and Tadokoro, Satoshi

Subjects
Computer Science - Robotics
Abstract

To detach a permanent magnet with a controlled force much smaller than its original attractive force, the Internally-Balanced Magnetic Unit (IB Magnet) was invented and has been applied to magnetic devices such as wall-climbing robots, ceil-dangling drones, and modular swarm robots. In contrast to its drastic reduction rate on the control force, the IB Magnet has two major problems on its nonlinear spring which cancels out the internal force on the magnet: complicated design procedure and trade-off relationship between balancing precision and mechanism volume. This paper proposes a principle of a new balancing method for the IB Magnet which uses a like-pole pair of magnets as a magnetic spring, whose repulsive force ideally equals the attractive force of an unlike-pole pair exactly. To verify the proposed principle, the authors realized a prototype model of the IB Magnet using magnetic spring and verified through experiments its reduction rate is comparable to those of conventional IB Magnets. Moreover, the authors discussed and realized a robotic clamp as an application example containing proposed IB Magnets as its internal mechanism., Comment: 7 pages, 17 figures

Published
2019

13. Radial-Layer Jamming Mechanism for String Configuration

Author

Mukaide, Rio, Tadakuma, Kenjiro, Watanabe, Masahiro, ozawa, Yu, Takahashi, Tomoya, Konyo, Masashi, and Tadokoro, Satoshi

Subjects
Computer Science - Robotics
Abstract

Grippers can be attached to objects in a rigid mode, and they are therefore used in various applications, for example granular jamming gripper. This paper introduces a cutting-edge radial layer jamming mechanism with is tunable stiffness, which is critical for the development of grippers. The layer jamming mechanism generates friction between the layers of multi cylindrical walls by pulling wire. This paper describes the principles of three types of proposed tendon-driven jamming mechanism, in addition to their prototypes of string configuration and the experiments conducted on the holding torques of their joints. Due to the string configuration, the surface and three-dimensional (3D) shape. This mechanism can be implemented in various applications., Comment: 7 pages, 11 figures

Published
2019

14. Floating Displacement-Force Conversion Mechanism as a Robotic Mechanism

Author

Tadakuma, Kenjiro, Shimizu, Tori, Hayashi, Sosuke, Takane, Eri, Watanabe, Masahiro, Konyo, Masashi, and Tadokoro, Satoshi

Subjects
Computer Science - Robotics
Abstract

To attach and detach permanent magnets with an operation force smaller than their attractive force, Internally-Balanced Magnetic Unit (IB Magnet) has been developed. The unit utilizes a nonlinear spring with an inverse characteristic of magnetic attraction to produce a balancing force for canceling the internal force applied on the magnet. This paper extends the concept of shifting the equilibrium point of a system with a small operation force to linear systems such as conventional springs. Aligning a linear system and its inverse characteristic spring in series enables a mechanism to convert displacement into force generated by a spring with theoretically zero operation force. To verify the proposed principle, the authors realized a prototype model of inverse characteristic linear spring with an uncircular pulley. Experiments showed that the generating force of a linear spring can be controlled by a small and steady operation force., Comment: 6 pages, 18 figures

Published
2019

16. Exciting but Comfortable: Applying Haptic Feedback to Stabilized Action-Cam Videos

Author

Gongora, Daniel, Nagano, Hikaru, Konyo, Masashi, Tadokoro, Satoshi, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martin, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Kajimoto, Hiroyuki, editor, Lee, Dongjun, editor, Kim, Sang-Youn, editor, Konyo, Masashi, editor, and Kyung, Ki-Uk, editor

Published
2019
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17. Enhancing Haptic Experience in a Seat with Two-DoF Buttock Skin Stretch

Author

Horie, Arata, Nomura, Akito, Tadakuma, Kenjiro, Konyo, Masashi, Nagano, Hikaru, Tadokoro, Satoshi, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Liang, Qilian, Series Editor, Martin, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Kajimoto, Hiroyuki, editor, Lee, Dongjun, editor, Kim, Sang-Youn, editor, Konyo, Masashi, editor, and Kyung, Ki-Uk, editor

Published
2019
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22. Dual-Arm Construction Robot with Remote-Control Function

Author

Yoshinada, Hiroshi, Kurashiki, Keita, Kondo, Daisuke, Nagatani, Keiji, Kiribayashi, Seiga, Fuchida, Masataka, Tanaka, Masayuki, Yamashita, Atsushi, Asama, Hajime, Shibata, Takashi, Okutomi, Masatoshi, Sasaki, Yoko, Yokokohji, Yasuyoshi, Konyo, Masashi, Nagano, Hikaru, Kanehiro, Fumio, Sugihara, Tomomichi, Ishigami, Genya, Ozaki, Shingo, Suzumori, Koich, Ide, Toru, Yamamoto, Akina, Hioki, Kiyohiro, Oomichi, Takeo, Ashizawa, Satoshi, Tadakuma, Kenjiro, Takamori, Toshi, Kimura, Tetsuya, Murphy, Robin R., Tadokoro, Satoshi, Siciliano, Bruno, Series Editor, Khatib, Oussama, Series Editor, Amato, Nancy, Advisory Editor, Brock, Oliver, Advisory Editor, Bruyninckx, Herman, Advisory Editor, Burgard, Wolfram, Advisory Editor, Chatila, Raja, Advisory Editor, Chaumette, Francois, Advisory Editor, Chung, Wan Kyun, Advisory Editor, Corke, Peter, Advisory Editor, Dario, Paolo, Advisory Editor, De Luca, Alessandro, Advisory Editor, Dillmann, Rüdiger, Advisory Editor, Goldberg, Ken, Advisory Editor, Hollerbach, John, Advisory Editor, Kavraki, Lydia E, Advisory Editor, Kumar, Vijay, Advisory Editor, Nelson, Bradley J., Advisory Editor, Park, Frank Chongwoo, Advisory Editor, Salcudean, S. E., Advisory Editor, Siegwart, Roland, Advisory Editor, Sukhatme, Gaurav S, Advisory Editor, and Tadokoro, Satoshi, editor

Published
2019
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23. ImPACT-TRC Thin Serpentine Robot Platform for Urban Search and Rescue

Author

Konyo, Masashi, Ambe, Yuichi, Nagano, Hikaru, Yamauchi, Yu, Tadokoro, Satoshi, Bando, Yoshiaki, Itoyama, Katsutoshi, Okuno, Hiroshi G., Okatani, Takayuki, Shimizu, Kanta, Ito, Eisuke, Siciliano, Bruno, Series Editor, Khatib, Oussama, Series Editor, Amato, Nancy, Advisory Editor, Brock, Oliver, Advisory Editor, Bruyninckx, Herman, Advisory Editor, Burgard, Wolfram, Advisory Editor, Chatila, Raja, Advisory Editor, Chaumette, Francois, Advisory Editor, Chung, Wan Kyun, Advisory Editor, Corke, Peter, Advisory Editor, Dario, Paolo, Advisory Editor, De Luca, Alessandro, Advisory Editor, Dillmann, Rüdiger, Advisory Editor, Goldberg, Ken, Advisory Editor, Hollerbach, John, Advisory Editor, Kavraki, Lydia E, Advisory Editor, Kumar, Vijay, Advisory Editor, Nelson, Bradley J., Advisory Editor, Park, Frank Chongwoo, Advisory Editor, Salcudean, S. E., Advisory Editor, Siegwart, Roland, Advisory Editor, Sukhatme, Gaurav S, Advisory Editor, and Tadokoro, Satoshi, editor

Published
2019
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27. Hardness Perception Through Tapping: Peak and Impulse of the Reaction Force Reflect the Subjective Hardness

Author

Higashi, Kosuke, Okamoto, Shogo, Yamada, Yoji, Nagano, Hikaru, Konyo, Masashi, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Prattichizzo, Domenico, editor, Shinoda, Hiroyuki, editor, Tan, Hong Z., editor, Ruffaldi, Emanuele, editor, and Frisoli, Antonio, editor

Published
2018
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28. A Pilot Study: Introduction of Time-Domain Segment to Intensity-Based Perception Model of High-Frequency Vibration

Author

Cao, Nan, Nagano, Hikaru, Konyo, Masashi, Okamoto, Shogo, Tadokoro, Satoshi, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Prattichizzo, Domenico, editor, Shinoda, Hiroyuki, editor, Tan, Hong Z., editor, Ruffaldi, Emanuele, editor, and Frisoli, Antonio, editor

Published
2018
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29. Vibrotactile Feedback Improves Collision Detection in Fast Playback of First-Person View Videos

Author

Gongora, Daniel, Nagano, Hikaru, Konyo, Masashi, Tadokoro, Satoshi, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Prattichizzo, Domenico, editor, Shinoda, Hiroyuki, editor, Tan, Hong Z., editor, Ruffaldi, Emanuele, editor, and Frisoli, Antonio, editor

Published
2018
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30. Buttock Skin Stretch: Inducing Shear Force Perception and Acceleration Illusion on Self-motion Perception

Author

Horie, Arata, Nagano, Hikaru, Konyo, Masashi, Tadokoro, Satoshi, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Prattichizzo, Domenico, editor, Shinoda, Hiroyuki, editor, Tan, Hong Z., editor, Ruffaldi, Emanuele, editor, and Frisoli, Antonio, editor

Published
2018
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41. Can Haptic Feedback Improve Gesture Recognition in 3D Handwriting Systems?

Author

Babu, Dennis, Kim, Seonghwan, Nagano, Hikaru, Konyo, Masashi, Tadokoro, Satoshi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Kubota, Naoyuki, editor, Kiguchi, Kazuo, editor, Liu, Honghai, editor, and Obo, Takenori, editor

Published
2016
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42. Multipoint Vibrotactile Stimuli Based on Vibration Propagation Enhance Collision Sensation

Author

Sakata, Shunya, Nagano, Hikaru, Konyo, Masashi, Tadokoro, Satoshi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Bello, Fernando, editor, Kajimoto, Hiroyuki, editor, and Visell, Yon, editor

Published
2016
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44. Stratum corneum compliance enhances tactile sensitivity through increasing skin deformation: A study protocol for a randomized controlled trial.

Author

Sakaguchi, Saito, Saito, Kaoru, Arakawa, Naomi, and Konyo, Masashi

Subjects
RANDOMIZED controlled trials, RESEARCH protocols, OBJECT manipulation, STIMULUS intensity, ELASTIC modulus, VIBROTACTILE stimulation, SKIN care, SNOEZELEN
Abstract

Background: Tactile sensation plays a crucial role in object manipulation, communication, and even emotional well‐being. It has been reported that the deformability of skin (also described as skin compliance) that shows a large mechanical response to stimuli is associated with high tactile sensitivity. However, although the compliance of the stratum corneum, the outermost layer of skin, can change daily due to skin care and environmental factors, few studies have quantified the effect of the stratum corneum on tactile sensation. Aims: We investigated the changes in tactile sensitivity resulting from skin hydration and identified corresponding alterations in the compliance of the stratum corneum. Methods: A randomized controlled trial was conducted. Participants were randomly assigned to an intervention group (n = 20) that had a moisturizing cream applied to their cheeks or a control group (n = 19) that had Milli‐Q water applied to their cheeks. Tactile discrimination performance was assessed using psychophysical techniques before and after application. The water content, mechanical response characteristics, and penetration of PEG/PPG‐17/4 dimethyl ether from the cream in the stratum corneum were evaluated to identify hydration effects. Skin deformations occurring during tactile sensation were measured concurrently using a suction device employed for tactile stimulation. Results: Tactile sensitivity was increased in participants who had cream applied to the skin surface, while no significant change was observed in participants who received Milli‐Q water. The improved discrimination of tactile stimulus intensity was directly related to the magnitude of skin displacement. The higher water content of the stratum corneum due to cream application decreased the dynamic modulus of elasticity of the stratum corneum and increased the skin's extensibility in response to tactile stimuli. Conclusions: Hydrating the stratum corneum significantly enhances tactile sensitivity and is accompanied by an increase in skin extensibility, a factor in tactile intensity perception. The compliance of the thin stratum corneum layer plays a crucial role in tactile experiences that involve skin stretching. [ABSTRACT FROM AUTHOR]

Published
2024
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46. A Multi-DOF Haptic Representation Using Suction Pressure Stimuli on Finger Pads

Author

Maemori, Daiki, Porquis, Lope Ben, Konyo, Masashi, Tadokoro, Satoshi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Auvray, Malika, editor, and Duriez, Christian, editor

Published
2014
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