The impact of the stimulation frequency on closed-loop control with electrotactile feedback

Paredes, Liliana; Došen, Strahinja; Rattay, Frank; Gramlich, Bernhard; Farina, Dario

doi:10.1186/s12984-015-0022-8

Cited by 32 publications

(20 citation statements)

References 46 publications

(50 reference statements)

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“…the amplitude of the vibration or of the electrical current) was continuously modulated by the grip force of the prosthetic hand. The expectation was that with training users would [22] or are still at a preliminary stage [23] [24]. We are aware of only two exceptional case studies in which improved manipulation performance was achieved with closed loop control and both employed invasive methodologies.…”

mentioning

confidence: 99%

Non-Invasive, Temporally Discrete Feedback of Object Contact and Release Improves Grasp Control of Closed-Loop Myoelectric Transradial Prostheses

Clemente

D’Alonzo

Controzzi

et al. 2016

IEEE Trans. Neural Syst. Rehabil. Eng.

180

185

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Human grasping and manipulation control critically depends on tactile feedback. Without this feedback, the ability for fine control of a prosthesis is limited in upper limb amputees. Although various approaches have been investigated in the past, at present there is no commercially available device able to restore tactile feedback in upper limb amputees. Based on the Discrete Event-driven Sensory feedback Control (DESC) policy we present a device able to deliver short-lasting vibrotactile feedback to transradial amputees using commercially available myoelectric hands. The device (DESC-glove) comprises sensorized thimbles to be placed on the prosthesis digits, a battery-powered electronic board, and vibrating units embedded in an arm-cuff being transiently activated when the prosthesis makes and breaks contact with objects. The consequences of using the DESC-glove were evaluated in a longitudinal study. Five transradial amputees were equipped with the device for one month at home. Through a simple test proposed here for the first time-the virtual eggs test-we demonstrate the effectiveness of the device for prosthetic control in daily life conditions. In the future the device could be easily exploited as an add-on to complement myoelectric prostheses or even embedded in prosthetic sockets to enhance their control by upper limb amputees.

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mentioning

confidence: 99%

Non-Invasive, Temporally Discrete Feedback of Object Contact and Release Improves Grasp Control of Closed-Loop Myoelectric Transradial Prostheses

Clemente

D’Alonzo

Controzzi

et al. 2016

IEEE Trans. Neural Syst. Rehabil. Eng.

180

185

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“…Multiple features of this modality can be controlled to elicit sensory percepts. These features include (i) the place, material, and geometrical properties of the interface, (ii) the parameters of the current (duration, frequency, and amplitude), and (iii) end-organ thickness and location of the skin stimulated (Boldt et al, 2014 ; Hartmann et al, 2015 ; Paredes et al, 2015 ; Strbac et al, 2016 ). Subjects often describe electro-tactile sensations, qualitatively, as burning, pain, touch, pinch, tingle, pressure, vibrations, itch, sharp, etc.…”

Section: Non-invasive Methods Of Sensory Feedbackmentioning

confidence: 99%

Selectivity and Longevity of Peripheral-Nerve and Machine Interfaces: A Review

2017

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For those individuals with upper-extremity amputation, a daily normal living activity is no longer possible or it requires additional effort and time. With the aim of restoring their sensory and motor functions, theoretical and technological investigations have been carried out in the field of neuroprosthetic systems. For transmission of sensory feedback, several interfacing modalities including indirect (non-invasive), direct-to-peripheral-nerve (invasive), and cortical stimulation have been applied. Peripheral nerve interfaces demonstrate an edge over the cortical interfaces due to the sensitivity in attaining cortical brain signals. The peripheral nerve interfaces are highly dependent on interface designs and are required to be biocompatible with the nerves to achieve prolonged stability and longevity. Another criterion is the selection of nerves that allows minimal invasiveness and damages as well as high selectivity for a large number of nerve fascicles. In this paper, we review the nerve-machine interface modalities noted above with more focus on peripheral nerve interfaces, which are responsible for provision of sensory feedback. The invasive interfaces for recording and stimulation of electro-neurographic signals include intra-fascicular, regenerative-type interfaces that provide multiple contact channels to a group of axons inside the nerve and the extra-neural-cuff-type interfaces that enable interaction with many axons around the periphery of the nerve. Section Current Prosthetic Technology summarizes the advancements made to date in the field of neuroprosthetics toward the achievement of a bidirectional nerve-machine interface with more focus on sensory feedback. In the Discussion section, the authors propose a hybrid interface technique for achieving better selectivity and long-term stability using the available nerve interfacing techniques.

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“…For multi-channel stimulation, the allocation and combination of electrodes can also be taken into consideration. Difference between low frequency (<30 Hz) and high (50-100 Hz) frequency can be effectively aware by subjects [122], [123]. Amplitude and wave width are generally used to represent intensity difference such as force feedback.…”

Section: Modality Codingmentioning

confidence: 99%

Non-Invasive Stimulation-Based Tactile Sensation for Upper-Extremity Prosthesis: A Review

Fang

Zhou

et al. 2017

IEEE Sensors J.

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An ideal hand prosthesis should provide satisfying functionality based on reliable decoding of the user's intentions and deliver tactile feedback in a natural manner. The absence of tactile feedback impedes the functionality and efficiency of dexterous hand prostheses, which leads to a high rejection rate from prostheses users. Thus, it is expected that integration of tactile feedback with hand prostheses will improve the manipulation performance and enhance perceptual embodiment for users. This paper reviews the state-of-the-art of non-invasive stimulationbased tactile sensation for upper-extremity prostheses, from the physiology of the human skin, to tactile sensing techniques, noninvasive tactile stimulation, and an emphasis on electrotactile feedback. The paper concludes with a detailed discussion of recent applications, challenging issues, and future developments.

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The impact of the stimulation frequency on closed-loop control with electrotactile feedback

Cited by 32 publications

References 46 publications

Non-Invasive, Temporally Discrete Feedback of Object Contact and Release Improves Grasp Control of Closed-Loop Myoelectric Transradial Prostheses

Non-Invasive, Temporally Discrete Feedback of Object Contact and Release Improves Grasp Control of Closed-Loop Myoelectric Transradial Prostheses

Selectivity and Longevity of Peripheral-Nerve and Machine Interfaces: A Review

Non-Invasive Stimulation-Based Tactile Sensation for Upper-Extremity Prosthesis: A Review

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