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Article
Open AccessEncoding contact size using static and dynamic electrotactile finger stimulation: natural decoding vs. trained cues
Electrotactile stimulation through matrix electrodes is a promising technology to restore high-resolution tactile feedback in extended reality applications. One of the fundamental tactile effects that should b...
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Article
Open AccessBrain computer interface training with motor imagery and functional electrical stimulation for patients with severe upper limb paresis after stroke: a randomized controlled pilot trial
Restorative Brain–Computer Interfaces (BCI) that combine motor imagery with visual feedback and functional electrical stimulation (FES) may offer much-needed treatment alternatives for patients with severely i...
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Article
Open AccessEMG feedback improves gras** of compliant objects using a myoelectric prosthesis
Closing the control loop in myoelectric prostheses by providing artificial somatosensory feedback is recognized as an important goal. However, designing a feedback interface that is effective in realistic cond...
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Article
Open AccessThe impact of walking on the perception of multichannel electrotactile stimulation in individuals with lower-limb amputation and able-bodied participants
One of the drawbacks of lower-limb prostheses is that they do not provide explicit somatosensory feedback to their users. Electrotactile stimulation is an attractive technology to restore such feedback because...
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Article
Open AccessEncoding force modulation in two electrotactile feedback parameters strengthens sensory integration according to maximum likelihood estimation
Bidirectional human–machine interfaces involve commands from the central nervous system to an external device and feedback characterizing device state. Such feedback may be elicited by electrical stimulation o...
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Chapter and Conference Paper
The Effect of Cognitive Load on Electrotactile Communication via a Multi-pad Electrode
Enhancing the perception of the surrounding environment by conveying information through tactile stimulation can improve performance, especially when other senses are already overloaded (e.g., first responders...
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Article
Open AccessA review of user needs to drive the development of lower limb prostheses
The development of bionic legs has seen substantial improvements in the past years but people with lower-limb amputation still suffer from impairments in mobility (e.g., altered balance and gait control) due t...
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Article
Open AccessCombined spatial and frequency encoding for electrotactile feedback of myoelectric signals
Electrotactile stimulation has been commonly used in human–machine interfaces to provide feedback to the user, thereby closing the control loop and improving performance. The encoding approach, which defines t...
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Article
Open AccessReducing the number of EMG electrodes during online hand gesture classification with changing wrist positions
Myoelectric control based on hand gesture classification can be used for effective, contactless human–machine interfacing in general applications (e.g., consumer market) as well as in the clinical context. How...
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Chapter and Conference Paper
SimBionics: Neuromechanical Simulation and Sensory Feedback for the Control of Bionic Legs
Lower limb prosthetic technology has greatly advanced in the last decade, but there are still many challenges that need to be tackled to allow amputees to walk efficiently and safely on many different terrain ...
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Article
Open AccessA compact system for simultaneous stimulation and recording for closed-loop myoelectric control
Despite important advancements in control and mechatronics of myoelectric prostheses, the communication between the user and his/her bionic limb is still unidirectional, as these systems do not provide somatos...
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Article
Open AccessImmersive augmented reality system for the training of pattern classification control with a myoelectric prosthesis
Hand amputation can have a truly debilitating impact on the life of the affected person. A multifunctional myoelectric prosthesis controlled using pattern classification can be used to restore some of the lost...
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Chapter and Conference Paper
Electrotactile Stimulation, A New Feedback Channel for First Responders
This paper presents the early results of research aiming to develop a novel system for unobtrusive and intuitive electrotactile feedback for first responders. The system leverages the multi-pad stimulation te...
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Chapter
Prosthetic Feedback Systems
To fully replace the missing limb, a myoelectric prosthesis needs to provide a bidirectional communication between user’s brain and its bionic limb. And indeed, modern prosthetic hands are advanced mechatronic...
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Article
Open AccessPsychometric characterization of incidental feedback sources during gras** with a hand prosthesis
A prosthetic system should ideally reinstate the bidirectional communication between the user’s brain and its end effector by restoring both motor and sensory functions lost after an amputation. However, curre...
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Article
Open AccessImproving bimanual interaction with a prosthesis using semi-autonomous control
The loss of a hand is a traumatic experience that substantially compromises an individual’s capability to interact with his environment. The myoelectric prostheses are state-of-the-art (SoA) functional replace...
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Chapter and Conference Paper
Decoding Phantom Limb Neuro-Mechanical Function for a New Paradigm of Mind-Controlled Bionic Limbs
Mind controlled bionic limbs promise to replace mechanical function of lost biological extremities and restore amputees’ motor capacity. State of the art approaches use machine learning for establishing a mapp...
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Chapter and Conference Paper
A Novel Physiologically-Inspired Method for Myoelectric Prosthesis Control Using Pattern Classification
The contemporary myoelectric prostheses are advanced mechatronic systems, but human-machine interfacing for robust control of these devices is still an open challenge. We present a novel method for the recogni...
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Article
Open AccessMyocontrol is closed-loop control: incidental feedback is sufficient for scaling the prosthesis force in routine gras**
Sensory feedback is critical for gras** in able-bodied subjects. Consequently, closing the loop in upper-limb prosthetics by providing artificial sensory feedback to the amputee is expected to improve the pr...
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Article
Open AccessThe clinical relevance of advanced artificial feedback in the control of a multi-functional myoelectric prosthesis
To effectively replace the human hand, a prosthesis should seamlessly respond to user intentions but also convey sensory information back to the user. Restoration of sensory feedback is rated highly by the pro...
