Online classification of imagined speech using functional near-infrared spectroscopy signals.

abstract：OBJECTIVE:Studies have shown that low frequency components of brain recordings provide information on voluntary hand movement directions. However, non-invasive techniques face more challenges compared to invasive techniques. APPROACH:This study presents a novel signal processing technique to extract features from non-...

journal_title：Journal of neural engineering

authors： Robinson N,Guan C,Vinod AP,Ang KK,Tee KP

更新日期：2013-10-01 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:Intracortical brain-machine interfaces (iBMIs) aim to restore efficient communication and movement ability for paralyzed patients. However, frequent recalibration is required for consistency and reliability, and every recalibration will require relatively large most current sample set. The aim in this study i...

journal_title：Journal of neural engineering

authors： Zhang P,Ma X,Chen L,Zhou J,Wang C,Li W,He J

更新日期：2018-04-01 00:00:00

abstract：OBJECTIVE:Spinal cord stimulation (SCS) is a common neurostimulation therapy to treat chronic pain. Computational models represent a valuable tool to study the potential mechanisms of action of SCS and to optimize the design and implementation of SCS technologies. However, it is imperative that these computational mode...

journal_title：Journal of neural engineering

authors： Zander HJ,Graham RD,Anaya CJ,Lempka SF

更新日期：2020-06-12 00:00:00

abstract：OBJECTIVE:Activity-dependent stimulation (ADS) is designed to strengthen the connections between neuronal circuits and therefore may be a promising tool for promoting neurophysiological reorganization following a brain injury. To successfully perform this technique, two criteria must be met: (1) spikes in the extracell...

journal_title：Journal of neural engineering

authors： Murphy M,Buccelli S,Bornat Y,Bundy D,Nudo R,Guggenmos D,Chiappalone M

更新日期：2019-10-29 00:00:00

abstract：OBJECTIVE:Wireless control and power harvesting systems that operate injectable, cellular-scale optoelectronic components provide important demonstrated capabilities in neuromodulatory techniques such as optogenetics. Here, we report a radio frequency (RF) control/harvesting device that offers dramatically reduced size...

journal_title：Journal of neural engineering

authors： Park SI,Shin G,Banks A,McCall JG,Siuda ER,Schmidt MJ,Chung HU,Noh KN,Mun JG,Rhodes J,Bruchas MR,Rogers JA

更新日期：2015-10-01 00:00:00

abstract：:This paper presents a wheelchair navigation system based on a hidden Markov model (HMM), which we developed to assist those with restricted mobility. The semi-autonomous system is equipped with obstacle/collision avoidance sensors and it takes the electrooculography (EOG) signal traces from the user as commands to man...

journal_title：Journal of neural engineering

authors： Aziz F,Arof H,Mokhtar N,Mubin M

更新日期：2014-10-01 00:00:00

abstract：OBJECTIVE:The Subthalamic Nucleus (STN) is the most selected target for the placement of the Deep Brain Stimulation (DBS) electrode to treat Parkinson's disease. Its identification is a delicate and challenging task which is based on the interpretation of the STN functional activity acquired through microelectrode reco...

journal_title：Journal of neural engineering

authors： Coelli S,Levi V,Del Vecchio Del Vecchio J,Mailland E,Rinaldo S,Eleopra R,Bianchi AM

更新日期：2020-11-17 00:00:00

abstract：:Current treatment concepts for epilepsy are based on continuous drug delivery or electrical stimulation to prevent the occurrence of seizures, exposing the brain and body to a mostly unneeded risk of adverse effects. To address the infrequent occurrence and short duration of epileptic seizures, intelligent implantable...

journal_title：Journal of neural engineering

authors： Dümpelmann M

更新日期：2019-08-01 00:00:00

abstract：OBJECTIVE:In electroencephalographic (EEG) data, signals from distinct sources within the brain are widely spread by volume conduction and superimposed such that sensors receive mixtures of a multitude of signals. This reduction of spatial information strongly hampers single-trial analysis of EEG data as, for example, ...

journal_title：Journal of neural engineering

authors： Sannelli C,Vidaurre C,Müller KR,Blankertz B

更新日期：2016-08-01 00:00:00

abstract：OBJECTIVE:Over the past two decades retinal prostheses have made major strides in restoring functional vision to patients blinded by diseases such as retinitis pigmentosa. Presently, implants use single pulses to activate the retina. Though this stimulation paradigm has proved beneficial to patients, an unresolved prob...

journal_title：Journal of neural engineering

authors： Sekhar S,Jalligampala A,Zrenner E,Rathbun DL

更新日期：2017-08-01 00:00:00

abstract：OBJECTIVE:State of the art brain-computer interface (BCI) research focuses on improving individual components such as the application or the decoder that converts the user's brain activity to control signals. In this study, we investigate the interaction between these components in the P300 speller, a BCI for communica...

journal_title：Journal of neural engineering

authors： Verhoeven T,Buteneers P,Wiersema JR,Dambre J,Kindermans PJ

更新日期：2015-12-01 00:00:00

abstract：OBJECTIVE:A major difficulty of brain-computer interface (BCI) technology is dealing with the noise of EEG and its signal variations. Previous works studied time-dependent non-stationarities for BCIs in which the user's mental task was independent of the device operation (e.g., the mental task was motor imagery and the...

journal_title：Journal of neural engineering

authors： Iturrate I,Montesano L,Minguez J

更新日期：2013-04-01 00:00:00

abstract：:The objective of this work is to develop and test a photovoltaic retinal prosthesis for restoring sight to patients blinded by degenerative retinal diseases. A silicon photodiode array for subretinal stimulation has been fabricated by a silicon-integrated-circuit/MEMS process. Each pixel in the two-dimensional array c...

journal_title：Journal of neural engineering

authors： Wang L,Mathieson K,Kamins TI,Loudin JD,Galambos L,Goetz G,Sher A,Mandel Y,Huie P,Lavinsky D,Harris JS,Palanker DV

更新日期：2012-08-01 00:00:00

abstract：:The blood oxygenation level dependent (BOLD) contrast has been commonly used to detect fMRI signal. The majority of the BOLD signals are believed to arise from the venous and capillary networks. However, only those from the capillaries are spatially close to the neuronal activities, while the signals from large veins ...

journal_title：Journal of neural engineering

authors： Song AW,Gangstead SL

更新日期：2004-03-01 00:00:00

abstract：OBJECTIVE:Assessing an infant's brain development remains a challenge for neuroscientists and pediatricians despite great technological advances. As a non-invasive neuroimaging tool, functional near-infrared spectroscopy (fNIRS) has great advantages in monitoring an infant's brain activity. To explore the dynamic featu...

journal_title：Journal of neural engineering

authors： Liang Z,Minagawa Y,Yang HC,Tian H,Cheng L,Arimitsu T,Takahashi T,Tong Y

更新日期：2018-12-01 00:00:00

abstract：OBJECTIVE:Currently commercially available nerve conduits have demonstrated suboptimal clinical efficacy in repairing peripheral nerve defects. Although tissue-engineered nerve grafts (TENGs) with sustained release of neurotrophic factors (NTFs) are experimentally proved to be more effective than these blank conduits, ...

journal_title：Journal of neural engineering

authors： Liu Y,Yu S,Gu X,Cao R,Cui S

更新日期：2019-06-01 00:00:00

abstract：OBJECTIVE:Differential measurement of efferent and afferent peripheral nerve activity offers a promising means of improving the clinical utility of implantable neuroprostheses. The tripolar nerve cuff electrode has historically served as the gold standard for achieving high signal-to-noise ratios (SNRs) of the recordin...

journal_title：Journal of neural engineering

authors： Sabetian P,Popovic MR,Yoo PB

更新日期：2017-06-01 00:00:00

abstract：OBJECTIVE:Currently commercially available nerve conduits have demonstrated suboptimal clinical efficacy in repairing peripheral nerve defects. Although tissue-engineered nerve grafts (TENGs) with sustained release of neurotrophic factors (NTFs) are experimentally proved to be more effective than these blank conduits, ...

journal_title：Journal of neural engineering

authors： Liu Y,Yu S,Gu X,Cao R,Cui S

更新日期：2020-12-09 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：:In the study of the spreading depression (SD) wave phenomenon and its dynamics, it is necessary to describe the ionic movements along the extracellular space, as well as between this and the intracellular space. In both cases, the ionic movement includes a double coupling involving the concentration and the potential ...

journal_title：Journal of neural engineering

authors： Teixeira HZ,de Almeida AC,Infantosi AF,Vasconcelos MA,Duarte MA

更新日期：2004-06-01 00:00:00

abstract：OBJECTIVE:Despite the high number of degrees of freedom of the human hand, most actions of daily life can be executed incorporating only palmar, pincer and lateral grasp. In this study we attempt to discriminate these three different executed reach-and-grasp actions utilizing their EEG neural correlates. APPROACH:In a...

journal_title：Journal of neural engineering

authors： Schwarz A,Ofner P,Pereira J,Sburlea AI,Müller-Putz GR

更新日期：2018-02-01 00:00:00

abstract：:Spastic hypertonus (muscle over-activity due to exaggerated stretch reflexes) often develops in people with stroke, cerebral palsy, multiple sclerosis and spinal cord injury. Lesioning of nerves, e.g. with phenol or botulinum toxin is widely performed to reduce spastic hypertonus. We have explored the use of direct el...

journal_title：Journal of neural engineering

authors： Ravid EN,Gan LS,Todd K,Prochazka A

更新日期：2011-02-01 00:00:00

abstract：:To study cell-field dynamics, physiologists simultaneously record local field potentials and the activity of individual cells from animals performing cognitive tasks, during various brain states or under pathological conditions. However, apart from spike shape and spike timing analyses, few studies have focused on elu...

journal_title：Journal of neural engineering

authors： Cotic M,Chiu AW,Jahromi SS,Carlen PL,Bardakjian BL

更新日期：2011-08-01 00:00:00

abstract：OBJECTIVE:Brain-computer interfaces (BCIs) have the potential to be valuable clinical tools. However, the varied nature of BCIs, combined with the large number of laboratories participating in BCI research, makes uniform performance reporting difficult. To address this situation, we present a tutorial on performance me...

journal_title：Journal of neural engineering

authors： Thompson DE,Quitadamo LR,Mainardi L,Laghari KU,Gao S,Kindermans PJ,Simeral JD,Fazel-Rezai R,Matteucci M,Falk TH,Bianchi L,Chestek CA,Huggins JE

更新日期：2014-06-01 00:00:00

abstract：OBJECTIVE:Deep brain stimulation (DBS) of the internal segment of the globus pallidus (GPi) in patients with Parkinson's disease and dystonia improves motor symptoms and quality of life. Traditionally, pallidal borders have been demarcated by electrophysiological microelectrode recordings (MERs) during DBS surgery. How...

journal_title：Journal of neural engineering

authors： Valsky D,Blackwell KT,Tamir I,Eitan R,Bergman H,Israel Z

更新日期：2020-01-06 00:00:00

abstract：:Adaptive model theory (AMT) is a computational theory that addresses the difficult control problem posed by the musculoskeletal system in interaction with the environment. It proposes that the nervous system creates motor maps and task-dependent synergies to solve the problems of redundancy and limited central resourc...

journal_title：Journal of neural engineering

authors： Neilson PD,Neilson MD

更新日期：2005-09-01 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:Due to low spatial resolution and poor signal-to-noise ratio of electroencephalogram (EEG), high accuracy classifications still suffer from lots of obstacles in the context of motor imagery (MI)-based brain-machine interface (BMI) systems. Particularly, it is extremely challenging to decode multiclass MI EEG ...

journal_title：Journal of neural engineering

authors： Chu Y,Zhao X,Zou Y,Xu W,Song G,Han J,Zhao Y

更新日期：2020-08-11 00:00:00

abstract：OBJECTIVE:Haptic perception of a prosthetic limb or hand is a crucial, but often unmet, need which impacts the utility of the prostheses. In this study, we seek to evaluate the feasibility of a non-invasive transcutaneous nerve stimulation method in generating haptic feedback in a transradial amputee subject as well as...

journal_title：Journal of neural engineering

authors： Shin H,Watkins Z,Huang HH,Zhu Y,Hu X

更新日期：2018-08-01 00:00:00