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https://www.readbyqxmd.com/read/28227970/combining-a-hybrid-robotic-system-with-a-bain-machine-interface-for-the-rehabilitation-of-reaching-movements-a-case-study-with-a-stroke-patient
#1
F Resquin, J Ibanez, J Gonzalez-Vargas, F Brunetti, I Dimbwadyo, S Alves, L Carrasco, L Torres, Jose Luis Pons, F Resquin, J Ibañez, J Gonzalez-Vargas, F Brunetti, I Dimbwadyo, S Alves, L Carrasco, L Torres, Jose Luis Pons, S Alves, Jose Luis Pons, F Brunetti, J Gonzalez-Vargas, F Resquin, I Dimbwadyo, L Carrasco, L Torres, J Ibanez
Reaching and grasping are two of the most affected functions after stroke. Hybrid rehabilitation systems combining Functional Electrical Stimulation with Robotic devices have been proposed in the literature to improve rehabilitation outcomes. In this work, we present the combined use of a hybrid robotic system with an EEG-based Brain-Machine Interface to detect the user's movement intentions to trigger the assistance. The platform has been tested in a single session with a stroke patient. The results show how the patient could successfully interact with the BMI and command the assistance of the hybrid system with low latencies...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227845/high-performance-wearable-two-channel-hybrid-bci-system-with-eye-closure-assist
#2
Yubing Jiang, Hyeonseok Lee, Gang Li, Wan-Young Chung, Yubing Jiang, Hyeonseok Lee, Gang Li, Wan-Young Chung, Wan-Young Chung, Gang Li, Hyeonseok Lee, Yubing Jiang
Generally, eye closure (EC) and eye opening (EO)-based alpha blocking has widely recognized advantages, such as being easy to use, requiring little user training, while motor imagery (MI) is difficult for some users to have concrete feelings. This study presents a hybrid brain-computer interface (BCI) combining MI and EC strategies - such an approach aims to overcome some disadvantages of MI-based BCI, improve the performance and universality of the BCI. The EC/EO is employed to control the machine to switch in different states including forward, stop, changing direction motions, while the MI is used to control the machine to turn left or right for 90° by imagining the hands grasp motions when the system is switched into "changing direction" state...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227809/feature-domain-specific-movement-intention-detection-for-stroke-rehabilitation-with-brain-computer-interfaces
#3
J T Hadsund, M B Sorensen, A C Royo, I K Niazi, H Rovsing, C Rovsing, M Jochumsen, J T Hadsund, M B Sorensen, A C Royo, I K Niazi, H Rovsing, C Rovsing, M Jochumsen, H Rovsing, M Jochumsen, M B Sorensen, C Rovsing, A C Royo, I K Niazi, J T Hadsund
Brain-computer interface (BCI) driven electrical stimulation has been proposed for neuromodulation for stroke rehabilitation by pairing intentions to move with somatosensory feedback from electrical stimulation. Movement intentions have been detected in several studies using different techniques, with temporal and spectral features being the most common. A few studies have compared temporal and spectral features, but conflicting results have been reported. In this study, the aim was to investigate if complexity measures can be used for movement intention detection and to compare the detection performance based on features extracted from three different domains (time, frequency and complexity) from single-trial EEG...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227740/influence-of-force-feedback-on-grasp-force-modulation-in-prosthetic-applications-a-preliminary-study
#4
Sasha B Godfrey, Matteo Bianchi, Antonio Bicchi, Marco Santello, Sasha B Godfrey, Matteo Bianchi, Antonio Bicchi, Marco Santello, Marco Santello, Antonio Bicchi, Sasha B Godfrey, Matteo Bianchi
In typical movement, humans use a combination of feed-forward and feedback motor control strategies to interact with the world around them. However, when sensory input is impaired or absent, as in the case of various neuropathies or amputation, the ability to perform everyday tasks, like modulating grip force to object weight, can be affected. In this study, we show the results of a preliminary study using a pressure cuff-like force feedback device (CUFF) with the SoftHand Pro (SHP) prosthetic hand. Subjects lifted an object of various weights using their own hand, with the SHP without feedback, and the SHP with force feedback...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227686/novel-modular-2-dof-microsurgical-forceps-for-transoral-laser-microsurgeries-ergonomic-design-and-preliminary-evaluation
#5
Manish Chauhan, Giacinto Barresi, Nikhil Deshpande, Darwin G Caldwell, Leonardo S Mattos, Manish Chauhan, Giacinto Barresi, Nikhil Deshpande, Darwin G Caldwell, Leonardo S Mattos, Darwin G Caldwell, Giacinto Barresi, Leonardo S Mattos, Nikhil Deshpande, Manish Chauhan
Transoral Laser Microsurgeries (TLM) demand a great level of control and precision in intraoperative tissue manipulation. The optimal eradication of the diseased tissue is possible only with coordinated control of the laser aiming for incision and the microsurgical tools for orienting and stretching the tissue. However, the traditional microsurgical tools are long, single purpose, one degree-of-freedom (DOF), rigid tools with small range of motion and a normal grasping handle inducing non-ergonomic usage. This paper presents a novel, modular microsurgical tool to overcome the challenges of the traditional tools and improve the surgeon-tool usage experience...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227664/development-of-five-finger-robotic-hand-using-master-slave-control-for-hand-assisted-laparoscopic-surgery
#6
Koki Yoshida, Hiroshi Yamada, Ryu Kato, Tatsuya Seki, Hiroshi Yokoi, Masaya Mukai, Koki Yoshida, Hiroshi Yamada, Ryu Kato, Tatsuya Seki, Hiroshi Yokoi, Masaya Mukai, Hiroshi Yokoi, Masaya Mukai, Tatsuya Seki, Hiroshi Yamada, Koki Yoshida, Ryu Kato
This study aims to develop a robotic hand as a substitute for a surgeon's hand in hand-assisted laparoscopic surgery (HALS). We determined the requirements for the proposed hand from a surgeon's motions in HALS. We identified four basic behaviors: "power grasp," "precision grasp," "open hand for exclusion," and "peace sign for extending peritoneum." The proposed hand had the minimum necessary DOFs for performing these behaviors, five fingers as in a human's hand, a palm that can be folded when a surgeon inserts the hand into the abdomen, and an arm for adjusting the hand's position...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227639/investigation-of-a-passive-capstan-based-grasp-enhancement-feature-in-a-voluntary-closing-prosthetic-terminal-device
#7
Kevin D Gemmell, Michael T Leddy, Joseph T Belter, Aaron M Dollar, Kevin D Gemmell, Michael T Leddy, Joseph T Belter, Aaron M Dollar, Joseph T Belter, Kevin D Gemmell, Michael T Leddy, Aaron M Dollar
Body-powered prosthetic terminal devices fall into two main categories: voluntary-closing devices, which require the user to exert a force to maintain a grasp, and voluntary opening devices, which generally utilize springs to close and maintain a force. As a result, voluntary-closing devices often have a locking feature that allows the user to relax and transport objects while maintaining a firm grip. In this paper, we examine a new type of capstan-based passive brake mechanism in a voluntary-closing prosthetic terminal device...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227547/a-low-cost-open-source-compliant-hand-for-enabling-sensorimotor-control-for-people-with-transradial-amputations
#8
Aadeel Akhtar, Kyung Yun Choi, Michael Fatina, Jesse Cornman, Edward Wu, Joseph Sombeck, Chris Yim, Patrick Slade, Jason Lee, Jack Moore, Daniel Gonzales, Alvin Wu, Garrett Anderson, David Rotter, Cliff Shin, Timothy Bretl, Aadeel Akhtar, Kyung Yun Choi, Michael Fatina, Jesse Cornman, Edward Wu, Joseph Sombeck, Chris Yim, Patrick Slade, Jason Lee, Jack Moore, Daniel Gonzales, Alvin Wu, Garrett Anderson, David Rotter, Cliff Shin, Timothy Bretl, Kyung Yun Choi, Michael Fatina, Chris Yim, Jesse Cornman, Alvin Wu, Garrett Anderson, Jason Lee, Edward Wu, Daniel Gonzales, Aadeel Akhtar, David Rotter, Cliff Shin, Timothy Bretl, Patrick Slade, Jack Moore, Joseph Sombeck
In this paper, we describe the design and implementation of a low-cost, open-source prosthetic hand that enables both motor control and sensory feedback for people with transradial amputations. We integrate electromyographic pattern recognition for motor control along with contact reflexes and sensory substitution to provide feedback to the user. Compliant joints allow for robustness to impacts. The entire hand can be built for around $550. This low cost makes research and development of sensorimotor prosthetic hands more accessible to researchers worldwide, while also being affordable for people with amputations in developing nations...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227520/cross-frequency-information-transfer-from-eeg-to-emg-in-grasping
#9
Winnie K Y So, Lingling Yang, Beth Jelfs, Qi She, Savio W H Wong, Joseph N Mak, Rosa H M Chan, Winnie K Y So, Lingling Yang, Beth Jelfs, Qi She, Savio W H Wong, Joseph N Mak, Rosa H M Chan, Rosa H M Chan, Beth Jelfs, Savio W H Wong, Lingling Yang, Qi She, Joseph N Mak, Winnie K Y So
This paper presents an investigation into the cortico-muscular relationship during a grasping task by evaluating the information transfer between EEG and EMG signals. Information transfer was computed via a non-linear model-free measure, transfer entropy (TE). To examine the cross-frequency interaction, TEs were computed after the times series were decomposed into various frequency ranges via wavelet transform. Our results demonstrate the capability of TE to capture the direct interaction between EEG and EMG...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227238/design-and-development-of-a-sensorized-cylindrical-object-for-grasping-assessment
#10
F Cordella, F Taffoni, L Raiano, G Carpino, M Pantoni, L Zollo, E Schena, E Guglielmelli, D Formica, F Cordella, F Taffoni, L Raiano, G Carpino, M Pantoni, L Zollo, E Schena, E Guglielmelli, D Formica, M Pantoni, F Cordella, G Carpino, E Schena, L Zollo, D Formica, F Taffoni, L Raiano, E Guglielmelli
Aim of this work is to design and develop an instrumented cylindrical object equipped with force sensors, which is able to assess grasping performance of both human and robotic hands. The object is made of two concentric shells between which sixteen piezoresistive sensors have been located in order to measure the forces applied by the hand fingers during grasping. Furthermore, a magneto-inertial unit has been positioned inside the object for acquiring information about object orientation during manipulation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227203/real-time-ultrasound-based-control-of-a-virtual-hand-by-a-trans-radial-amputee
#11
Clayton A Baker, Nima Akhlaghi, Huzefa Rangwala, Jana Kosecka, Siddhartha Sikdar, Clayton A Baker, Nima Akhlaghi, Huzefa Rangwala, Jana Kosecka, Siddhartha Sikdar, Nima Akhlaghi, Siddhartha Sikdar, Clayton A Baker, Jana Kosecka, Huzefa Rangwala
Advancements in multiarticulate upper-limb prosthetics have outpaced the development of intuitive, non-invasive control mechanisms for implementing them. Surface electromyography is currently the most popular non-invasive control method, but presents a number of drawbacks including poor deep-muscle specificity. Previous research established the viability of ultrasound imaging as an alternative means of decoding movement intent, and demonstrated the ability to distinguish between complex grasps in able-bodied subjects via imaging of the anterior forearm musculature...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227057/mobile-interface-for-neuroprosthesis-control-aiming-tetraplegic-users
#12
Renato G Barelli, Plinio T Aquino, Maria Claudia Ferrari de Castro, Renato G Barelli, Plinio T Aquino Junior, Maria Claudia Ferrari de Castro, Plinio T Aquino, Maria Claudia Ferrari de Castro, Renato G Barelli
This article proposes the development of a mobile interface for controlling a Neuroprosthesis, designed to restore grasp patterns, aiming tetraplegics users at C5 and C6 levels. Human Computer Interface paradigms and usability concepts guide its planning and development to garantee the quality of user's interaction with the system and thus, the sucess and controlability of the neuroprostheses. The number of screens and menus were optimized, thus the user may feel the interface as more intuitive, leading to fast learning and increasing the trust on it...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226568/design-of-a-spring-assisted-exoskeleton-module-for-wrist-and-hand-rehabilitation
#13
Joel C Perry, Shawn Trimble, Luiz Gustavo Castilho Machado, Jeremiah S Schroeder, Aitor Belloso, Cristina Rodriguez-de-Pablo, Thierry Keller, Joel C Perry, Shawn Trimble, Luiz Gustavo Castilho Machado, Jeremiah S Schroeder, Aitor Belloso, Cristina Rodriguez-de-Pablo, Thierry Keller, Cristina Rodriguez-De-Pablo, Joel C Perry, Jeremiah S Schroeder, Aitor Belloso, Luiz Gustavo Castilho Machado, Thierry Keller, Shawn Trimble
This paper reports on the development of a low-profile exoskeleton module to enable training of the fingers and thumb in grasp and release tasks. The design has been made as an add-on module for use with the ArmAssist arm rehabilitation system (Tecnalia, Spain). Variable-position springs and adjustable link lengths provide adaptability to fit a variety of users. Additive manufacturing has been utilized for the majority of components allowing easy modifications. A few structural components were machined from aluminum or steel to produce a functional prototype with sufficient strength for direct evaluation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226567/an-effective-3-fingered-augmenting-exoskeleton-for-the-human-hand
#14
C J Gearhart, B Varone, M H Stella, B F BuSha, C J Gearhart, B Varone, M H Stella, B F BuSha, M H Stella, B F BuSha, B Varone, C J Gearhart
Every year, thousands of Americans suffer from pathological and traumatic events that result in loss of dexterity and strength of the hand. Although many supportive devices have been designed to restore functional hand movement, most are very complex and expensive. The goal of this project was to design and implement a cost-effective, electrically powered exoskeleton for the human hand that could improve grasping strength. A 3-D printed thermoplastic exoskeleton that allowed independent and enhanced movement of the index, middle and ring fingers was constructed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226565/design-of-a-thumb-module-for-the-finger-rehabilitation-robot
#15
Eric T Wolbrecht, Kyle J Morse, Joel C Perry, David J Reinkensmeyer, Eric T Wolbrecht, Kyle J Morse, Joel C Perry, David J Reinkensmeyer, Eric T Wolbrecht, Kyle J Morse, Joel C Perry, David J Reinkensmeyer
This paper describes the design and initial prototype of a thumb curling exoskeleton for movement therapy. This add-on device for the Finger INdividuating Grasp Exercise Robot (FINGER) guides the thumb through a single-degree-of-freedom naturalistic grasping motion. This motion complements the grasping motions of the index and middle fingers provided by FINGER. The kinematic design and mechanism synthesis described herein utilized 3D motion capture and included the determination of the principle plane of the thumb motion for the simple grasping movement...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226564/hand-rehabilitation-after-stroke-using-a-wearable-high-dof-spring-powered-exoskeleton
#16
Tianyao Chen, Peter S Lum, Tianyao Chen, Peter S Lum, Peter S Lum, Tianyao Chen
Stroke patients often have inappropriate finger flexor activation and finger extensor weakness, which makes it difficult to open their affected hand for functional grasp. The goal was to develop a passive, lightweight, wearable device to enable improved hand function during performance of activities of daily living. The device, HandSOME II, assists with opening the patient's hand using 11 elastic actuators that apply extension torques to finger and thumb joints. Device design and initial testing are described...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226528/automatic-grasp-selection-using-a-camera-in-a-hand-prosthesis
#17
Joseph DeGol, Aadeel Akhtar, Bhargava Manja, Timothy Bretl, Joseph DeGol, Aadeel Akhtar, Bhargava Manja, Timothy Bretl, Joseph DeGol, Bhargava Manja, Timothy Bretl, Aadeel Akhtar
In this paper, we demonstrate how automatic grasp selection can be achieved by placing a camera in the palm of a prosthetic hand and training a convolutional neural network on images of objects with corresponding grasp labels. Our labeled dataset is built from common graspable objects curated from the ImageNet dataset and from images captured from our own camera that is placed in the hand. We achieve a grasp classification accuracy of 93.2% and show through realtime grasp selection that using a camera to augment current electromyography controlled prosthetic hands may be useful...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223949/how-you-move-is-what-i-see-planning-an-action-biases-a-partner-s-visual-search
#18
Dominik Dötsch, Cordula Vesper, Anna Schubö
Activating action representations can modulate perceptual processing of action-relevant dimensions, indicative of a common-coding of perception and action. When two or more agents work together in joint action, individual agents often need to consider not only their own actions and their effects on the world, but also predict the actions of a co-acting partner. If in these situations the action of a partner is represented in a functionally equivalent way to the agent's own actions, one may also expect interaction effects between action and perception across jointly acting individuals...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28223947/grasping-the-agent-s-perspective-a-kinematics-investigation-of-linguistic-perspective-in-italian-and-german
#19
Claudia Gianelli, Michele Marzocchi, Anna M Borghi
Every day, we primarily experience actions as agents, by having a concrete perspective on our actions, their means and goals. This peculiar perspective is what allows us to successfully plan and execute our actions in a dense social environment. Nevertheless, in this environment actions are also perceived from an observer's perspective. Adopting such a perspective helps us to understand and respond to other's people actions and their outcomes. Importantly, similar experiences of being agent and observer occur also when actions are not physically acted/perceived but are merely linguistically shared...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28223926/frontal-functional-connectivity-of-electrocorticographic-delta-and-theta-rhythms-during-action-execution-versus-action-observation-in-humans
#20
Claudio Babiloni, Claudio Del Percio, Susanna Lopez, Giancarlo Di Gennaro, Pier P Quarato, Luigi Pavone, Roberta Morace, Andrea Soricelli, Giuseppe Noce, Vincenzo Esposito, Vittorio Gallese, Giovanni Mirabella
We have previously shown that in seven drug-resistant epilepsy patients, both reaching-grasping of objects and the mere observation of those actions did desynchronize subdural electrocorticographic (ECoG) alpha (8-13 Hz) and beta (14-30) rhythms as a sign of cortical activation in primary somatosensory-motor, lateral premotor and ventral prefrontal areas (Babiloni et al., 2016a). Furthermore, that desynchronization was greater during action execution than during its observation. In the present exploratory study, we reanalyzed those ECoG data to evaluate the proof-of-concept that lagged linear connectivity (LLC) between primary somatosensory-motor, lateral premotor and ventral prefrontal areas would be enhanced during the action execution compared to the mere observation due to a greater flow of visual and somatomotor information...
2017: Frontiers in Behavioral Neuroscience
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