Article
Multidisciplinary Sciences
Benlong Liu, Lina Qiao, Kun Liu, Juan Liu, Tyler J. Piccinni-Ash, Zhou-Feng Chen
Summary: Pleasant touch provides emotional and psychological support, but the underlying mechanisms remain unclear. This study found that the lack of certain genes in mice leads to impairments in stress response and prosocial behaviors. Additionally, specific neurons were found to respond most strongly to gentle stroking and encode reward value.
Article
Neurosciences
Laura K. Case, Jaquette Liljencrantz, Micaela V. McCall, Megan Bradson, Aaron Necaise, Justin Tubbs, Hakan Olausson, Binquan Wang, M. Catherine Bushnell
Summary: This paper examines the research on pleasant touch, focusing on the C-tactile pathway for gentle stroking and introducing deep pressure as another important form of social touch. Utilizing the oscillating compression sleeve (OCS) to administer deep pressure, the study demonstrates that this touch is perceived as pleasant and calming, and activates brain regions similar to C-tactile stroking. The findings suggest that deep pressure constitutes another social touch pathway of evolutionary importance signaling close proximity of conspecifics.
Article
Neurosciences
Chiara Spaccasassi, Ivana Frigione, Angelo Maravita
Summary: Affective touch can have a significant impact on human behavior, however, current research results in this area are inconsistent and there is a lack of clues about the relationship between affective touch and the space around our body. Two separate experiments did not show any modulation of body representation or visuo-tactile spatial processing depending on the pleasantness of the touch received, suggesting a need for further understanding of the effects of affective touch on body/space representation.
Article
Environmental Sciences
Menglan Gao, Zhibin Jiang, Xiaobin Liao, Huan Qi, Lei Zhao, Chao Chen, Danielle Westerman
Summary: This study investigated the characteristics, kinetic rates, reaction pathways, and influencing factors of the formation of N-Nitrosodimethylamine (NDMA) during ozonation, using 3-(Dimethylamino)-1-propylamine (DMAPA) as a representative. The results showed that NDMA was generated directly from DMAPA during ozonation, and its yields increased with ozone dosages. The pH, hydroxyl radical (•OH), bromide ion (Br-), NO2-, NH4+, NO3-, and co-existing components in actual lake water all affected the formation of NDMA. The primary pathway for NDMA formation was found to be radical recombination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Clinical Neurology
Gianluca Cruciani, Pietro Zingaretti, Vittorio Lingiardi, Sergio De Filippis, Patrick Haggard, Grazia Fernanda Spitoni
Summary: This study found deficits in pain perception and tactile sensitivity in individuals with Borderline Personality Disorder (BPD), but no differences in tactile acuity, cold pain thresholds, cold tolerance, or affective touch perception.
JOURNAL OF AFFECTIVE DISORDERS
(2023)
Article
Multidisciplinary Sciences
Taishi Sawabe, Suguru Honda, Wataru Sato, Tomoki Ishikura, Masayuki Kanbara, Sakiko Yoshikawa, Yuichiro Fujimoto, Hirokazu Kato
Summary: This study demonstrates that combining robot touch with elements of speech can enhance positive emotional responses, including higher subjective valence and arousal ratings, as well as stronger facial electromyography and skin conductance activities.
SCIENTIFIC REPORTS
(2022)
Article
Humanities, Multidisciplinary
Yukari Tanaka, Yasuhiro Kanakogi, Masako Myowa
Summary: The study found that more physical contact during mother-infant interactions can reduce infants' evasive behavior towards strangers and enhance object exploration. However, social touch did not affect infants' preferential looking at static social images.
HUMANITIES & SOCIAL SCIENCES COMMUNICATIONS
(2021)
Review
Engineering, Environmental
Chengqian Wang, Liuwei Wang, Yong Sik Ok, Daniel C. W. Tsang, Deyi Hou
Summary: Microplastic, as an emerging contaminant, poses potential environmental threats globally. While most studies on the plastisphere have focused on aquatic ecosystems, our understanding of the soil plastisphere is still limited. The formation and succession of soil plastisphere communities can be influenced by MP characteristics and soil environmental factors, and may affect ecological processes such as co-transport of contaminants and soil carbon cycling.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Multidisciplinary Sciences
Antonio Cataldo, Massimiliano Di Luca, Ophelia Deroy, Vincent Hayward
Summary: Self-touch plays a crucial role in the construction and adaptability of bodily self, and it does not necessarily rely on proprioceptive information for body-ownership modulation. By comparing the effectiveness of oculomotor self-touch and hand-driven self-touch in generating the illusion of owning a rubber hand, it was found that both eye and hand self-touch movements were equally effective, suggesting that proprioception does not contribute to body ownership during self-touch. Self-touch may contribute to a unified sense of bodily self by linking voluntary actions towards our own body with their tactile consequences.
Review
Psychology, Experimental
Pankaj Taneja, Hakan Olausson, Mats Trulsson, Peter Svensson, Lene Baad-Hansen
Summary: Pleasantness is often overlooked in the investigation of tactile functions, but this study found that factors like texture, velocity, force, and duration of stroking can influence tactile evoked pleasantness. Using soft materials and stroking at 3 cm/s is generally considered particularly pleasant. The results of this study can be important for studies requiring a well-defined pleasant stimulus.
PSYCHOLOGICAL RESEARCH-PSYCHOLOGISCHE FORSCHUNG
(2021)
Article
Rehabilitation
Aaron Jay Yang, R. Sterling Haring, Theodora L. Swenson, Nitin B. Jain
Summary: The study demonstrates that the majority of graduating physiatry residents are inclined towards pursuing a fellowship in pain, spine, or sports medicine, highlighting the importance of subspecialty interests at the start of residency and how training influences these interests.
AMERICAN JOURNAL OF PHYSICAL MEDICINE & REHABILITATION
(2021)
Article
Psychology, Biological
D. M. Pfabigan, E. R. Frogner, E. Schele, P. M. Thorsby, B. S. Skalhegg, S. L. Dickson, U. Sailer
Summary: Variations in ghrelin concentrations may affect the processing of touch as a social reward in humans, with higher ghrelin concentrations associated with a lower reward value for touch.
Article
Biochemistry & Molecular Biology
Leah J. Elias, Isabella K. Succi, Melanie D. Schaffler, William Foster, Mark A. Gradwell, Manon Bohic, Akira Fushiki, Aman Upadhyay, Lindsay L. Ejoh, Ryan Schwark, Rachel Frazer, Brittany Bistis, Jessica E. Burke, Victoria Saltz, Jared E. Boyce, Anissa Jhumka, Rui M. Costa, Victoria E. Abraira, Ishmail Abdus-Saboor
Summary: By studying mice, it is found that sensory neurons labeled by Mrgprb4 are able to detect mechanical stimulation and play a crucial role in sexual receptivity and dopamine release. Optogenetic stimulation of these neurons can induce a conditioned place preference and a copulatory posture even in social isolation. In the absence of Mrgprb4-lineage neurons, female mice no longer find male mounts rewarding and show aggression instead.
Article
Psychology, Multidisciplinary
Xiaoyu Zou
Summary: In this study, the method of Unified Theory of Acceptance and Use of Technology (UTAUT) is used to analyze the factors influencing the learning intention of Overseas Students (OSs) during the COVID-19 period. Through questionnaire survey and data analysis, the study finds that autonomy and self-discipline, personal interests and hobbies, perceived interest, self-learning management, effort expectation, community influence, performance expectation, and promotion conditions all have significant positive impacts on promoting Chinese learning.
FRONTIERS IN PSYCHOLOGY
(2022)
Article
Geriatrics & Gerontology
Kira Scheerman, Amber Hendrica Cornelia Schoenmakers, Carel Gerardus Maria Meskers, Andrea Britta Maier
Summary: Better understanding of older patients' perspectives on barriers and enablers in physical activity promotion during hospitalization can help develop strategies to increase in-hospital physical activity. Physically dependent patients were more frequently encouraged by professionals to be physically active compared to independent patients, and focusing on physical barriers and motivational enablers for older patients may help increase their physical activity during hospitalization.
Article
Computer Science, Cybernetics
Corentin Bernard, Solvi Ystad, Jocelyn Monnoyer, Michael Wiertlewski
IEEE TRANSACTIONS ON HAPTICS
(2020)
Article
Neurosciences
Heba Khamis, Hafiz Malik Naqash Afzal, Jennifer Sanchez, Richard Vickery, Michael Wiertlewski, Stephen J. Redmond, Ingvars Birznieks
Summary: The study shows that conscious perception of frictional information requires a sufficiently large lateral movement, as moderate tangential forces alone are not enough to perceive frictional differences. These findings may be useful in designing haptic devices based on friction modulation principles.
JOURNAL OF NEUROPHYSIOLOGY
(2021)
Article
Computer Science, Cybernetics
Thomas Daunizeau, David Gueorguiev, Sinan Haliyo, Vincent Hayward
Summary: Metamaterials are solid lattices with periodicities matching desired wavelengths, capable of endowing bulk materials with unique properties like negative refraction indices. Mesoscale metamaterials and phononic crystals can induce band gaps in the ultrasonic domain, allowing for the design of surface haptic interfaces with localized friction modulation.
IEEE TRANSACTIONS ON HAPTICS
(2021)
Article
Computer Science, Cybernetics
Basil Duvernoy, Sven Topp, Jeraldine Milroy, Vincent Hayward
Summary: The study compared two methods for Finger-Braille communication and found that tapping stimulation method was more effective than vibration method. The study recommends using tapping stimulation method in the design of tactile communication devices based on Finger-Braille and fingerspelling methods.
IEEE TRANSACTIONS ON HAPTICS
(2021)
Article
Engineering, Electrical & Electronic
Yerkebulan Massalim, Zhanat Kappassov, Huseyin Atakan Varol, Vincent Hayward
Summary: The algorithm described in the text is able to robustly determine the security of a grip or footstep based on data collected from at least two independent sensors. By analyzing the statistical distance between signals and the correlation of data from different sensors, this algorithm can provide a continuous measure of the graspability or walkability of an object or ground.
IEEE SENSORS JOURNAL
(2021)
Article
Multidisciplinary Sciences
Laurence Willemet, Khoubeib Kanzari, Jocelyn Monnoyer, Ingvars Birznieks, Michael Wiertlewski
Summary: Humans can efficiently estimate the necessary grip force to lift objects, considering surface properties like friction during initial contact. A correlation was found between participants' conscious perception of friction and radial strain patterns of skin deformation, providing insights into the tactile cues and sensorimotor regulation of grip. The study utilized a friction-modulation apparatus to elucidate the effects of frictional properties of objects during initial contact.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Computer Science, Cybernetics
Naqash Afzal, Emma Stubbs, Heba Khamis, Alastair J. Loutit, Stephen J. Redmond, Richard M. Vickery, Michael Wiertlewski, Ingvars Birznieks
Summary: This study quantified how minor lateral displacement and speed enable subjects to feel frictional differences. The results showed that submillimeter range lateral displacement is sufficient for perceiving frictional difference, while speed has only a marginal effect. These findings are crucial for designing haptic devices that replicate slipperiness and understanding the importance of subtle finger movements in dexterous manipulation tasks.
IEEE TRANSACTIONS ON HAPTICS
(2022)
Article
Robotics
Basil Duvernoy, Zhanat Kappassov, Sven Topp, Jeraldine Milroy, Shuangshuang Xiao, Ines Lacote, Azamat Abdikarimov, Vincent Hayward, Mounia Ziat
Summary: Deafblindness is a unique disability that affects both hearing and vision. Some Deafblind individuals rely on touch as their primary means of communication. The Deafblind Tactile Fingerspelling Alphabet, also known as the Deafblind Manual Alphabet, uses tactile symbols to represent the letters of the Latin alphabet. The HaptiComm device is designed to reproduce the sensations of fingerspelling communication through strategically placed electrodynamic actuators.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2023)
Article
Physics, Applied
Mostafa A. Atalla, Ron A. J. van Ostayen, Aimee Sakes, Michael Wiertlewski
Summary: Transverse vibrations can compress a thin film of air and make objects levitate through the squeeze-film effect. Reynolds' lubrication theory explains this phenomenon well, but fails to describe it when the fluid is incompressible. In this Letter, we identify the main source of pressure asymmetry in the incompressible fluid film, which allows for the existence of levitation. Additionally, we discover the physical law governing the steady-state levitation height, which is confirmed through experiments.
APPLIED PHYSICS LETTERS
(2023)
Article
Multidisciplinary Sciences
Jocelyn Monnoyer, Laurence Willemet, Michael Wiertlewski
Summary: Shortly after touching an object, humans can perceive the sudden changes in the friction of the surface. The perception is robust only when the friction coefficient is reduced. This change in frictional properties during initial contact is interpreted as a normal displacement of the surface, which could enable the development of haptic surfaces that create illusions of interacting with mechanical buttons.
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2023)
Proceedings Paper
Robotics
Rob B. N. Scharff, Dirk-Jan Boonstra, Laurence Willemet, Xi Lin, Michael Wiertlewski
Summary: Tactile sensing provides crucial information about contact that cannot be obtained through vision. Recent advancements in tactile sensors using camera and deformable membranes have shown the possibility of dense measurement. This study introduces a new design method using multi-color additive manufacturing and silicone casting to efficiently manufacture soft marker-based tactile sensors. The approach is calibrated and validated, demonstrating its effectiveness.
2022 IEEE 5TH INTERNATIONAL CONFERENCE ON SOFT ROBOTICS (ROBOSOFT)
(2022)
Proceedings Paper
Computer Science, Cybernetics
Aruna Ramasamy, Damien Faux, Vincent Hayward, Malika Auvray, Xavier Job, Louise Kirsch
Summary: This study used a database of vibratory signals to investigate whether there are latent cues in tactile signals that distinguish self-touch from other-touch. The findings suggest that these cues can be accurately classified using a random forest classifier, regardless of other factors such as pressure, speed, or posture. The results have important implications for various fields, including artificial world creation, social interaction research, and the study of sensory deficits and cognitive conditions.
HAPTICS: SCIENCE, TECHNOLOGY, APPLICATIONS, EUROHAPTICS 2022
(2022)
Article
Computer Science, Cybernetics
Nicolas Huloux, Laurence Willemet, Michael Wiertlewski
Summary: This article introduces two methods for measuring variations in contact area - an improved fingertip imaging technique and an acoustic energy absorption and reflection method. The ultrasonic method, utilizing a recently developed model, provides precise measurements and shows good agreement with the fingertip imaging technique. These methods are essential for studying human grasping, understanding friction perception, and controlling surface-haptic devices.
IEEE TRANSACTIONS ON HAPTICS
(2021)
Article
Computer Science, Cybernetics
Nicolas Huloux, Corentin Bernard, Michael Wiertlewski
Summary: The study demonstrates the use of ultrasonic surface-haptic touchscreens to generate tactile sensations directly on the users' fingertips, estimating acoustic levitation and frictional force by observing a change in mechanical impedance. The findings highlight the application of multi-scale contact theory in self-sensing friction forces and provide design suggestions for energy-efficient devices utilizing ultrasonic impedance.
IEEE TRANSACTIONS ON HAPTICS
(2021)
Article
Psychology, Mathematical
Louise P. Kirsch, Xavier E. Job, Malika Auvray, Vincent Hayward
Summary: The study explored a method of using vibrations to capture information about skin-to-skin tactile interactions, measured by a sensor placed on the touching finger. It was found that applied pressure and speed directly affected the measured signal power. The measurements were found to be insensitive to changes in the location of the sensor relative to the target.
BEHAVIOR RESEARCH METHODS
(2021)