A5085738776- Muscle activation and electromyography studies
- Tactile and Sensory Interactions
- Neuroscience and Neural Engineering
- Advanced Sensor and Energy Harvesting Materials
- EEG and Brain-Computer Interfaces
- Prosthetics and Rehabilitation Robotics
- Motor Control and Adaptation
- Interactive and Immersive Displays
- Conducting polymers and applications
- Advanced Computing and Algorithms
- Multisensory perception and integration
- Stroke Rehabilitation and Recovery
- Teleoperation and Haptic Systems
- Brain Tumor Detection and Classification
- Neural dynamics and brain function
- Robot Manipulation and Learning
University of Illinois Urbana-Champaign
2012-2019
University of Illinois System
2016
Thin, soft, and elastic electronics with physical properties well matched to the epidermis can be conformally robustly integrated skin. Materials optimized designs for such devices are presented surface electromyography (sEMG). The findings enable sEMG from wide ranging areas of body. measurements have quality sufficient advanced forms human-machine interface. As a service our authors readers, this journal provides supporting information supplied by authors. Such materials peer reviewed may...
The design of an ultrathin, conformal electronic device that integrates electrotactile stimulation with electromyography, temperature, and strain sensing in a single, simple platform is reported. Experiments demonstrate simultaneous use multiple modes operation this type the sensorimotor control robotic systems, monitoring lower back exertion muscle stimulation. As service to our authors readers, journal provides supporting information supplied by authors. Such materials are peer reviewed...
This paper presents the Tact hand-an anthropomorphic, open-source, myoelectric prosthetic hand that was designed for use by people with transradial amputations in developing countries. matches or exceeds performance of other state-of-the-art hands, but costs two orders magnitude less ($250) and is easy to manufacture a 3D printer off-the-shelf parts. We describe our design process, evaluate both qualitative quantitative measures performance, show examples using this grasp household objects.
Modulating electrotactile stimulation parameters in response to changes impedance reduces variation perceived sensation.
In this paper, we demonstrate how automatic grasp selection can be achieved by placing a camera in the palm of prosthetic hand and training convolutional neural network on images objects with corresponding labels. Our labeled dataset is built from common graspable curated ImageNet captured our own that placed hand. We achieve classification accuracy 93.2% show through real-time using to augment current electromyography controlled hands may useful.
Repeated mechanical failure due to accidental impact is one of the main reasons why people with upper-limb amputations abandon commercially-available prosthetic hands. To address this problem, we present design and evaluation a compliant four-bar linkage mechanism that makes fingers hand more resistant. Our replaces both rigid input coupler links monolithic bone, follower link three layers pre-stressed spring steel. This behaves like conventional but adds lateral compliance eliminates pin...
In this paper, we describe the design and implementation of a low-cost, open-source prosthetic hand that enables both motor control sensory feedback for people with transradial amputations. We integrate electromyographic pattern recognition along contact reflexes substitution to provide user. Compliant joints allow robustness impacts. The entire can be built around $550. This low cost makes research development sensorimotor hands more accessible researchers worldwide, while also being...
Thin, soft, and elastic electronics, which have physical properties well matched to the epidermis, can be conformally robustly integrated with skin. Materials optimized design of such devices are presented for surface electromyography (sEMG) by J. A. Rogers co-workers on page 6839. The skin-integrated electronics shown here enable use sEMG advanced forms human-machine interfaces.
In this paper we describe a multiplayer brain-computer interface (BCI) based on the classic game of checkers using steady-state visually evoked potentials (SSVEPs). Previous research in BCI gaming focuses mainly production software-based games computer screen - few hardware-based physical board have been developed. Hardware-based can present unique set challenges when compared to games. Depending where user is sitting, some stimuli might be farther away from player, at steeper viewing angle,...
Electrotactile stimulation is a common method of sensory substitution and haptic feedback. One problem with this has been the large variability in perceived sensation that derives from changes impedance electrode-skin interface. way to reduce modulate parameters (current amplitude pulse duration) response changes, which are reflected time domain by measured peak resistance, R <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">p</sub> . To work...
Recently developed powered ankle prostheses are capable of providing users with biologically inspired control during walking. However, currently, the appropriate dynamic mechanical properties, or impedance, human walking is unknown. Before trustworthy estimates ankle's impedance can be obtained using Perturberator robot, it must thoroughly validated. In this study, sensitivity standing to foot placement was investigated. Additionally, linear filters that mapped acceleration motor angle...
In this paper, we present the design and performance of a portable, arbitrary waveform, multichannel constant current electrotactile stimulator that costs less than $30 in components. The consists stimulation controller power supply are half size credit card can produce ±15 mA at ±150 V. is easily extensible to multiple independent channels receive an waveform input from digital-to-analog converter, drawing only 0.9 W/channel (lasting 4-5 hours upon continuous using 9 V battery). Finally,...
The design of an ultrathin, conformal electronic device that integrates electrotactile stimulation with electromyography, temperature, and strain sensing in a single, simple platform is reported by J. A. Rogers co-workers on page 4462. Demonstrated application possibilities include prosthetic control sensory feedback, monitors, signals related to lower back exertion, electrical muscle feedback control.
Amputation is always a devastating experience. In addition to the loss of function or sensation, lowered body image leaves deeper emotional impacts on victims and their loved ones. For various reasons, traumatic injuries vascular diseases like diabetes [4] are common for particularly upper limb loss. According World Health Organization, there more than 10 million people with hand amputations worldwide, 80% whom in developing countries. Unfortunately, only less 3% have access affordable...