The use of tungsten as a chronically implanted material.

abstract：OBJECTIVE:Bladder dysfunction is a significant and largely unaddressed problem for people living with spinal cord injury. Intermittent catheterization does not provide volitional control of micturition and has numerous side effects. Targeted electrical microstimulation of the spinal cord has been previously explored fo...

journal_title：Journal of neural engineering

authors： Pikov V,McCreery DB,Han M

更新日期：2020-11-12 00:00:00

abstract：OBJECTIVE:Signal attenuation is a major problem facing intracortical sensors for chronic neuroprosthetic applications. Many studies suggest that failure is due to gliosis around the electrode tips, however, mechanical and material causes of failure are often overlooked. The purpose of this study was to investigate the ...

journal_title：Journal of neural engineering

authors： Barrese JC,Aceros J,Donoghue JP

更新日期：2016-04-01 00:00:00

abstract：OBJECTIVE:Although electrode size should be miniaturized to provide higher selectivity for neural signal recording and to avoid tissue damage, small sized electrodes induce high impedance, which decreases recording quality. In this work, the electrode surface was modified to increase the effective surface area to lower...

journal_title：Journal of neural engineering

authors： Chung T,Wang JQ,Wang J,Cao B,Li Y,Pang SW

更新日期：2015-10-01 00:00:00

abstract：:Electrical stimulation of peripheral nerve activates large-diameter fibers before small ones. A physiological recruitment order, from small to large-diameter axons, is desirable in many applications. Previous studies using computer simulations showed that selective activation of small fibers could be achieved by resha...

journal_title：Journal of neural engineering

authors： Lertmanorat Z,Durand DM

更新日期：2004-12-01 00:00:00

abstract：OBJECTIVE:We have previously demonstrated a brain-machine interface neuroprosthetic system that provided continuous control of functional electrical stimulation (FES) and restoration of grasp in a primate model of spinal cord injury (SCI). Predicting intended EMG directly from cortical recordings provides a flexible hi...

journal_title：Journal of neural engineering

authors： Ethier C,Acuna D,Solla SA,Miller LE

更新日期：2016-08-01 00:00:00

abstract：OBJECTIVE:Currently, there are some 95 000 people in Europe suffering from upper-limb impairment. Rehabilitation should be undertaken right after the impairment occurs and should be regularly performed thereafter. Moreover, the rehabilitation process should be tailored specifically to both patient and impairment. APPR...

journal_title：Journal of neural engineering

authors： Nissler C,Nowak M,Connan M,Büttner S,Vogel J,Kossyk I,Márton ZC,Castellini C

更新日期：2019-04-01 00:00:00

abstract：:We introduce algorithms and architectures for automatic spike detection and alignment that are designed for low power. Some of the algorithms are based on principal component analysis (PCA). Others employ a novel integral transform analysis and achieve 99% of the precision of a PCA detector, while requiring only 0.05%...

journal_title：Journal of neural engineering

authors： Zviagintsev A,Perelman Y,Ginosar R

更新日期：2006-03-01 00:00:00

abstract：:Retinal implants have proven their ability to restore visual sensation to people with degenerative retinopathy, characterized by photoreceptor cell death and the retina's inability to sense light. Retinal bionics operate by electrically stimulating the surviving neurons in the retina, thus triggering the transfer of v...

journal_title：Journal of neural engineering

authors： Bareket L,Barriga-Rivera A,Zapf MP,Lovell NH,Suaning GJ

更新日期：2017-08-01 00:00:00

abstract：OBJECTIVE:While motor-imagery based brain-computer interfaces (BCIs) have been studied over many years by now, most of these studies have taken place in controlled lab settings. Bringing BCI technology into everyday life is still one of the main challenges in this field of research. APPROACH:This paper systematically ...

journal_title：Journal of neural engineering

authors： Brandl S,Frølich L,Höhne J,Müller KR,Samek W

更新日期：2016-10-01 00:00:00

abstract：OBJECTIVE:Fractional calculus plays a key role in the analysis of neural dynamics. In particular, fractional calculus has been recently exploited for analyzing complex biological systems and capturing intrinsic phenomena. Also, artificial neural networks have been shown to have complex neuronal dynamics and characteris...

journal_title：Journal of neural engineering

authors： Lu Q

更新日期：2020-06-12 00:00:00

abstract：:Repositioning microelectrodes post-implantation is emerging as a promising approach to achieve long-term reliability in single neuronal recordings. The main goal of this study was to (a) assess glial reaction in response to movement of microelectrodes in the brain post-implantation and (b) determine an optimal window ...

journal_title：Journal of neural engineering

authors： Stice P,Muthuswamy J

更新日期：2009-08-01 00:00:00

abstract：OBJECTIVE:By means of subjective psychophysical methods, quality of transmitted speech has been decomposed into three perceptual dimensions named 'discontinuity' (F), 'noisiness' (N) and 'coloration' (C). Previous studies using electroencephalography (EEG) already reported effects of perceived intensity of single quali...

journal_title：Journal of neural engineering

authors： Uhrig S,Mittag G,Möller S,Voigt-Antons JN

更新日期：2019-06-01 00:00:00

abstract：OBJECTIVE:This paper discusses the invariance and variability in interaction error-related potentials (ErrPs), where a special focus is laid upon the factors of (1) the human mental processing required to assess interface actions (2) time (3) subjects. APPROACH:Three different experiments were designed as to vary prim...

journal_title：Journal of neural engineering

authors： Abu-Alqumsan M,Kapeller C,Hintermüller C,Guger C,Peer A

更新日期：2017-12-01 00:00:00

abstract：:We describe a brain-computer interface for controlling a humanoid robot directly using brain signals obtained non-invasively from the scalp through electroencephalography (EEG). EEG has previously been used for tasks such as controlling a cursor and spelling a word, but it has been regarded as an unlikely candidate fo...

journal_title：Journal of neural engineering

authors： Bell CJ,Shenoy P,Chalodhorn R,Rao RP

更新日期：2008-06-01 00:00:00

abstract：:We conducted an experiment to determine whether the rhythm with which imagined syllables are produced may be decoded from EEG recordings. High density EEG data were recorded for seven subjects while they produced in imagination one of two syllables in one of three different rhythms. We used a modified second-order bli...

journal_title：Journal of neural engineering

authors： Deng S,Srinivasan R,Lappas T,D'Zmura M

更新日期：2010-08-01 00:00:00

abstract：OBJECTIVE:High-rate pulse trains have proven to be effective in cochlear prosthetics and, more recently, have been shown to elicit a wide range of interesting response properties in axons of the peripheral nervous system. Surprisingly, the effectiveness of such trains for use in retinal prostheses has not been explored...

journal_title：Journal of neural engineering

authors： Cai C,Twyford P,Fried S

更新日期：2013-06-01 00:00:00

abstract：OBJECTIVE:Despite their increasing use and public health importance, little is known about the consistency and variability of the quantitative features of baseline electroencephalography (EEG) measurements in healthy individuals and populations. This study aims to investigate population consistency of EEG features. AP...

journal_title：Journal of neural engineering

authors： Nahmias DO,Kontson KL,Soltysik DA,Civillico EF

更新日期：2019-11-12 00:00:00

abstract：OBJECTIVE:A signal-based metric for assessment of accuracy of motor unit (MU) identification from high-density surface electromyograms (EMG) is introduced. This metric, so-called pulse-to-noise-ratio (PNR), is computationally efficient, does not require any additional experimental costs and can be applied to every MU t...

journal_title：Journal of neural engineering

authors： Holobar A,Minetto MA,Farina D

更新日期：2014-02-01 00:00:00

abstract：:The aim of this study was to assess the accuracy of the convolution kernel compensation (CKC) method in decomposing high-density surface EMG (HDsEMG) signals from the pennate biceps femoris long-head muscle. Although the CKC method has already been thoroughly assessed in parallel-fibered muscles, there are several fac...

journal_title：Journal of neural engineering

authors： Marateb HR,McGill KC,Holobar A,Lateva ZC,Mansourian M,Merletti R

更新日期：2011-12-01 00:00:00

abstract：:Brain-computer interfaces (BCIs) can use brain signals from the scalp (EEG), the cortical surface (ECoG), or within the cortex to restore movement control to people who are paralyzed. Like muscle-based skills, BCIs' use requires activity-dependent adaptations in the brain that maintain stable relationships between the...

journal_title：Journal of neural engineering

authors： McFarland DJ,Sarnacki WA,Wolpaw JR

更新日期：2010-06-01 00:00:00

abstract：OBJECTIVE:Penetrating cortical neural probe technologies allow investigators to record electrical signals in the brain. Implantation of probes results in acute tissue damage, and microglia density increases around implanted devices over weeks. However, the mechanisms underlying this encapsulation are not well understoo...

journal_title：Journal of neural engineering

authors： Kozai TD,Vazquez AL,Weaver CL,Kim SG,Cui XT

更新日期：2012-12-01 00:00:00

abstract：OBJECTIVE:In a previous study we demonstrated continuous translation, orientation and one-dimensional grasping control of a prosthetic limb (seven degrees of freedom) by a human subject with tetraplegia using a brain-machine interface (BMI). The current study, in the same subject, immediately followed the previous work...

journal_title：Journal of neural engineering

authors： Wodlinger B,Downey JE,Tyler-Kabara EC,Schwartz AB,Boninger ML,Collinger JL

更新日期：2015-02-01 00:00:00

abstract：OBJECTIVE:A primary control signal in brain-computer interfaces (BCIs) have been cortical signals related to movement. However, in cases where natural motor function remains, BCI control signals may interfere with other possibly simultaneous activity for useful ongoing movement. We sought to determine if the brain coul...

journal_title：Journal of neural engineering

authors： Bashford L,Wu J,Sarma D,Collins K,Rao RPN,Ojemann JG,Mehring C

更新日期：2018-12-01 00:00:00

abstract：OBJECTIVE:Contemporary deep brain stimulation (DBS) for Parkinson's disease is delivered continuously, and adjustments based on patient's changing symptoms must be made manually by a trained clinician. Patients may be subjected to energy intensive settings at times when they are not needed, possibly resulting in stimul...

journal_title：Journal of neural engineering

authors： Swann NC,de Hemptinne C,Thompson MC,Miocinovic S,Miller AM,Gilron R,Ostrem JL,Chizeck HJ,Starr PA

更新日期：2018-08-01 00:00:00

abstract：OBJECTIVE:Electrical status epilepticus during sleep (ESES), as electroencephalographic disturbances, is characterized by strong activation of epileptiform activity in the electroencephalogram during sleep. Quantitative descriptors of such epileptiform activity can support the diagnose and the prognosis of children wit...

journal_title：Journal of neural engineering

authors： Zhao X,Wang X,Chen C,Fan J,Yu X,Wang Z,Akbarzadeh S,Li Q,Zhou S,Chen W

更新日期：2020-08-11 00:00:00

abstract：OBJECTIVE:Functions ascribed to the hippocampal sub-regions for encoding episodic memories include the separation of activity patterns propagated from the entorhinal cortex (EC) into the dentate gyrus (DG) and pattern completion in CA3 region. Since a direct assessment of these functions is lacking at the level of spec...

journal_title：Journal of neural engineering

authors： Poli D,Wheeler BC,DeMarse TB,Brewer GJ

更新日期：2018-08-01 00:00:00

abstract：OBJECTIVE:It is known that multi-site interleaved stimulation generates less muscle fatigue compared to single-site synchronous stimulation. However, in the limited number of studies in which intramuscular electrodes were used, the fatigue reduction associated with interleaved stimulation could not consistently be achi...

journal_title：Journal of neural engineering

authors： Eladly A,Del Valle J,Minguillon J,Mercadal B,Becerra-Fajardo L,Navarro X,Ivorra A

更新日期：2020-08-25 00:00:00

abstract：:Rational selection of electrical stimulus parameters for an electronic retinal prosthesis requires knowledge of the electrophysiological responses of retinal neurons to electrical stimuli. In this study, we examined the effects of cathodal and anodal current pulses on the extracellularly recorded responses of OFF and ...

journal_title：Journal of neural engineering

authors： Jensen RJ,Ziv OR,Rizzo JF

更新日期：2005-03-01 00:00:00

abstract：OBJECTIVE:Brains, like other physical devices, are inherently noisy. This source of variability is large, to the extent that internal noise often impacts human sensory processing more than externally induced (stimulus-driven) perturbations. Despite the fundamental nature of this phenomenon, its statistical distribution...

journal_title：Journal of neural engineering

authors： Neri P

更新日期：2013-02-01 00:00:00

abstract：:The extraction of distinctly separable features from electroencephalogram (EEG) is one of the main challenges in designing a brain-computer interface (BCI). Existing feature extraction techniques for a BCI are mostly developed based on traditional signal processing techniques assuming that the signal is Gaussian and h...

journal_title：Journal of neural engineering

authors： Shahid S,Prasad G

更新日期：2011-04-01 00:00:00