scispace - formally typeset
Search or ask a question
Topic

Haptic technology

About: Haptic technology is a research topic. Over the lifetime, 18818 publications have been published within this topic receiving 306713 citations. The topic is also known as: haptics & haptic media.


Papers
More filters
Journal ArticleDOI
TL;DR: Learning with haptic feedback was significantly better than learning without it for a laparoscopic suturing and knot-tying task, but only during the first 5 h of training.
Abstract: The benefits of haptic feedback in laparoscopic surgery training simulators is a topic of debate in the literature. It is hypothesized that novice surgeons may not benefit from the haptic information, especially during the initial phase of learning a new task. Therefore, provision of haptic feedback to novice trainees in the early stage of training may be distracting and detrimental to learning. A controlled experiment was conducted to examine the effect of haptic feedback on the learning curve of a complex laparoscopic suturing and knot-tying task. The ProMIS and the MIST-VR surgical simulators were used to represent conditions with and without haptic feedback, respectively. A total of 20 novice subjects (10 per simulator) were trained to perform suturing and knot-tying and practiced the tasks in 18 sessions of 1 h each. At the end of the 3-week training period, the subjects performed equally fast but more consistently with haptics (ProMIS) than without haptics (MIST-VR). The subjects showed a slightly higher learning rate and reached the first plateau of the learning curve earlier with haptic feedback. In general, learning with haptic feedback was significantly better than learning without it for a laparoscopic suturing and knot-tying task, but only during the first 5 h of training. Haptic feedback may not be warranted in laparoscopic surgical trainers. The benefits of a shorter time to the first performance plateau and more consistent initial performance should be balanced with the cost of implementing haptic feedback in surgical simulators.

85 citations

Proceedings ArticleDOI
01 Sep 2014
TL;DR: This work designs actions involving use of tools such as forks and knives that obtain haptic data containing information about the physical properties of the object, and presents a method to compactly represent the robot's beliefs about the object's properties using a generative model.
Abstract: Manipulation of complex deformable semi-solids such as food objects is an important skill for personal robots to have. In this work, our goal is to model and learn the physical properties of such objects. We design actions involving use of tools such as forks and knives that obtain haptic data containing information about the physical properties of the object. We then design appropriate features and use supervised learning to map these features to certain physical properties (hardness, plasticity, elasticity, tensile strength, brittleness, adhesiveness). Additionally, we present a method to compactly represent the robot's beliefs about the object's properties using a generative model, which we use to plan appropriate manipulation actions. We extensively evaluate our approach on a dataset including haptic data from 12 categories of food (including categories not seen before by the robot) obtained in 941 experiments. Our robot prepared a salad during 60 sequential robotic experiments where it made a mistake in only 4 instances.

85 citations

Proceedings ArticleDOI
25 Mar 2010
TL;DR: The findings suggest that vibrotactile feedback can be an effective means of communicating musculoskeletal commands to the human sensory-motor system, especially for motor training and rehabilitation.
Abstract: In this paper, we explore the use of vibrotactile haptic feedback to improve performance of a sensory-motor task. Our specific application is seated posture guidance. Poor sitting postures, over time, can lead to health concerns such as low back pain. We propose a real-time haptic feedback system that actively senses and guides a person to a desired posture. We have instrumented an ergonomic office chair with a simple system using 7 force-sensitive resistors (FSRs) for posture detection and 6 vibrotactile actuators (“tactors”) for haptic feedback. When the chair detects that the subject is not sitting in the desired posture, one or more tactors will vibrate, directing the subject towards or away from a certain position. In a pilot study of 10 subjects (age 23.9±1.45, weight 71.1±13.6kg, height 175±11.2cm), 100% sat in the reference posture (upright) more often when there was haptic feedback than when there was not. Additionally, when haptic feedback was temporarily disabled without the subject's knowledge, all of the subjects continued to sit in upright or near-upright postures. These findings suggest that vibrotactile feedback can be an effective means of communicating musculoskeletal commands to the human sensory-motor system, especially for motor training and rehabilitation.

85 citations

Journal ArticleDOI
TL;DR: Experimental findings show that this ultra-thin SPA and the unique integration process of the discrete lead zirconate titanate (PZT) based piezoelectric sensors achieve high resolution of soft contact sensing as well as accurate control on vibrotactile feedback by closing the control loop.
Abstract: The latest wearable technologies demand more intuitive and sophisticated interfaces for communication, sensing, and feedback closer to the body. Evidently, such interfaces require flexibility and conformity without losing their functionality even on rigid surfaces. Although there has been various research efforts in creating tactile feedback to improve various haptic interfaces and master-slave manipulators, we are yet to see a comprehensive device that can both supply vibratory actuation and tactile sensing. This paper describes a soft pneumatic actuator (SPA) based, SPA-skin prototype that allows bidirectional tactile information transfer to facilitate simpler and responsive wearable interface. We describe the design and fabrication of a 1.4 mm-thick vibratory SPA - skin that is integrated with piezoelectric sensors. We examine in detail the mechanical performance compared to the SPA model and the sensitivity of the sensors for the application in vibrotactile feedback. Experimental findings show that this ultra-thin SPA and the unique integration process of the discrete lead zirconate titanate (PZT) based piezoelectric sensors achieve high resolution of soft contact sensing as well as accurate control on vibrotactile feedback by closing the control loop.

85 citations

Journal ArticleDOI
TL;DR: It is concluded that visual object imagery is more closely linked to haptic shape perception when objects are familiar, compared to when they are unfamiliar.

85 citations


Network Information
Related Topics (5)
Robot
103.8K papers, 1.3M citations
89% related
Mobile robot
66.7K papers, 1.1M citations
86% related
User interface
85.4K papers, 1.7M citations
82% related
Mobile device
58.6K papers, 942.8K citations
78% related
Control theory
299.6K papers, 3.1M citations
78% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023647
20221,508
2021745
20201,056
20191,180
20181,034