journal
MENU ▼
Read by QxMD icon Read
search

Journal of Neural Engineering

journal
https://www.readbyqxmd.com/read/28424430/exploring-non-stationarity-patterns-in-schizophrenia-neural-reorganization-abnormalities-in-the-alpha-band
#1
Pablo Núñez, Jesus Poza, Alejandro Bachiller, Javier Gomez-Pilar, Alba Lubeiro, Vicente Molina, Roberto Hornero
OBJECTIVE: The aim of this paper was to characterize brain non-stationarity during an auditory oddball task in schizophrenia (SCH). The level of non-stationarity was measured in the baseline and response windows of relevant tones in SCH patients and healthy controls. APPROACH: Event-related potentials were recorded from 28 SCH patients and 51 controls. Non-stationarity was estimated in the conventional electroencephalography frequency bands by means of Kullback-Leibler divergence (KLD)...
April 20, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28397708/effective-brain-network-analysis-with-resting-state-eeg-data-a-comparison-between-heroin-abstinent-and-non-addicted-subjects
#2
Bin Hu, Qunxi Dong, Yanrong Hao, Qinglin Zhao, Jian Shen, Fang Zheng
Abstract-Objective. Neuro-electrophysiological tools have been widely used in heroin addiction studies. Previous studies indicated that chronic heroin abuse would result in abnormal functional organization of the brain. While few heroin addiction studies apply the effective connectivity tool to analyze the brain functional system (BFS) alterations induced by heroin abuse. The present study aims to identify the abnormality of resting-state heroin abstinent BFS using source decomposition and effective connectivity tools...
April 11, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28393761/enhancing-clinical-communication-assessments-using-an-audiovisual-bci-for-patients-with-disorders-of-consciousness
#3
Fei Wang, Yanbin He, Jun Qu, Qiuyou Xie, Qing Lin, Xiaoxiao Ni, Yan Chen, Steven Laureys, Ronghao Yu, Yuanqing Li
OBJECTIVE: The JFK Coma Recovery Scale-Revised (JFK CRS-R), a behavioral observation scale, is widely used in the clinical diagnosis/assessment of patients with disorders of consciousness (DOC). However, the JFK CRS-R is associated with a high rate of misdiagnosis (approximately 40%) because DOC patients cannot provide sufficient behavioral responses. A brain-computer interface (BCI) that detects command/intention-specific changes in electroencephalography (EEG) signals without the need for behavioral expression may provide an alternative method...
April 10, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28384124/single-channel-in-ear-eeg-detects-the-focus-of-auditory-attention-to-concurrent-tone-streams-and-mixed-speech
#4
Lorenz Fiedler, Malte Wöstmann, Carina Graversen, Alex Brandmeyer, Thomas Lunner, Jonas Obleser
OBJECTIVE: Conventional, multi-channel scalp electroencephalography (EEG) allows the identification of the attended speaker in concurrent-listening ('cocktail party') scenarios. This implies that EEG might provide valuable information to complement hearing aids with some form of EEG and to install a level of neuro-feedback. APPROACH: To investigate whether a listener's attentional focus can be detected from single-channel hearing-aid-compatible EEG configurations, we recorded EEG from three electrodes inside the ear canal ('in-Ear-EEG') and additionally from 64 electrodes on the scalp...
April 6, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28384122/deciphering-neuronal-population-codes-for-acute-thermal-pain
#5
Zhe Chen, Qiaosheng Zhang, Ai Phuong Sieu Tong, Toby R Manders, Jing Wang
OBJECTIVE: Pain is defined as an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage. Current pain research mostly focuses on molecular and synaptic changes at the spinal and peripheral levels. However, a complete understanding of pain mechanisms requires the physiological study of the neocortex. Our goal is to apply a neural decoding approach to read out the onset of acute thermal pain signals, which can be used for brain-machine interface...
April 6, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28382924/fascicular-nerve-stimulation-and-recording-using-a-novel-double-aisle-regenerative-electrode
#6
Ignacio Delgado-Martínez, Martina Righi, Daniel Santos, Annarita Cutrone, Silvia Bossi, Silvia D'Amico, Jaume Del Valle, Silvestro Micera, Xavier Navarro
OBJECTIVE: As artificial prostheses become more refined, they are most often used as a therapeutic option for hand amputation. Differently from extra- or intraneural interfaces, regenerative nerve electrodes are designed to enable electrical interface with regrowing axonal bundles of injured nerves, aiming to achieve high selectivity for recording and stimulation. However, most of the developed designs pose an obstacle to the regrowth mechanisms due to low transparency and cause an impairment of the nerve regeneration...
April 6, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28378705/comparison-of-connectivity-analyses-for-resting-state-eeg-data
#7
Elzbieta Olejarczyk, Laura Marzetti, Vittorio Pizzella, Filippo Zappasodi
OBJECTIVE: In the present work, a nonlinear measure (transfer entropy, TE) was used in a multivariate approach for the analysis of effective connectivity in high density resting state EEG data in eyes open and eyes closed. Advantages of the multivariate approach in comparison to the bivariate one were tested. Moreover, the multivariate TE was compared to an effective linear measure, i.e. directed transfer function (DTF). Finally, the existence of a relationship between the information transfer and the level of brain synchronization as measured by phase synchronization value (PLV) was investigated...
April 5, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28367834/electroencephalographic-identifiers-of-motor-adaptation-learning
#8
Ozan Ozdenizci, Mustafa Yalcin, Ahmetcan Erdogan, Volkan Patoglu, Moritz Grosse-Wentrup, Mujdat Cetin
OBJECTIVE: Recent brain-computer interface (BCI) assisted stroke rehabilitation protocols tend to focus on sensorimotor activity of the brain. Relying on evidence claiming that a variety of brain rhythms beyond sensorimotor areas are related to the extent of motor deficits, we propose to identify neural correlates of motor learning beyond sensorimotor areas spatially and spectrally for further use in novel BCI-assisted neurorehabilitation settings. APPROACH: Electroencephalographic (EEG) data were recorded from healthy subjects participating in a physical force-field adaptation task involving reaching movements through a robotic handle...
April 3, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28361793/modeling-the-response-of-small-myelinated-axons-in-a-compound-nerve-to-kilohertz-frequency-signals
#9
Nicole A Pelot, Christina Behrend, Warren Grill
OBJECTIVE: There is growing interest in electrical neuromodulation of peripheral nerves, particularly autonomic nerves, to treat various diseases. Electrical signals in the kilohertz frequency (KHF) range can produce different responses, including conduction block. For example, EnteroMedics' vBloc® therapy for obesity delivers 5 kHz stimulation to block the abdominal vagus nerves, but the mechanisms of action are unclear. APPROACH: We developed a two-part computational model, coupling a three-dimensional finite element model of a cuff electrode around the human abdominal vagus nerve with biophysically-realistic electrical circuit equivalent (cable) model axons (1, 2, and 5...
March 31, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28358726/local-delivery-of-thyroid-hormone-enhances-oligodendrogenesis-and-myelination-after-spinal-cord-injury
#10
Robert B Shultz, Zhicheng Wang, Jia Nong, Zhiling Zhang, Yinghui Zhong
OBJECTIVE: Traumatic spinal cord injury (SCI) causes apoptosis of myelin-forming oligodendrocytes (OLs) and demyelination of surviving axons, resulting in conduction failure. Remyelination of surviving denuded axons provides a promising therapeutic target for spinal cord repair. While cell transplantation has demonstrated efficacy in promoting remyelination and functional recovery, the lack of ideal cell sources presents a major obstacle to clinical application. The adult spinal cord contains oligodendrocyte precursor cells and multipotent neural stem/progenitor cells that have the capacity to differentiate into mature, myelinating OLs...
March 30, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28358718/imaging-three-dimensional-innervation-zone-distribution-in-muscles-from-m-wave-recordings
#11
Chuan Zhang, Yun Peng, Yang Liu, Sheng Li, Ping Zhou, William Zev Rymer, Yingchun Zhang
OBJECTIVE: To localize neuromuscular junctions in skeletal muscles in vivo which is of great importance in understanding, diagnosing and managing of neuromuscular disorders. APPROACH: A three-dimensional global innervation zone imaging technique was developed to characterize the global distribution of innervation zones, as an indication of the location and features of neuromuscular junctions, using electrically evoked high-density surface electromyogram recordings...
March 30, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28357991/a-new-multivariate-empirical-mode-decomposition-method-for-improving-the-performance-of-ssvep-based-brain-computer-interface
#12
Yi-Feng Chen, Kiran Atal, Shengquan Xie, Quan Liu
OBJECTIVE: Accurate and efficient detection of steady-state visual evoked potentials (SSVEP) in electroencephalogram (EEG) is essential for the related brain-computer interface (BCI) applications. APPROACH: Although the canonical correlation analysis (CCA) has been applied extensively and successfully to SSVEP recognition, the spontaneous EEG activities and artifacts that often occur during data recording can deteriorate the recognition performance. Therefore, it is meaningful to extract a few frequency sub-bands of interest to avoid or reduce the influence of unrelated brain activity and artifacts...
March 30, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28355147/glimpse-google-glass-interface-for-sensory-feedback-in-myoelectric-hand-prostheses
#13
Marko Markovic, Hemanth Karnal, Bernhard Graimann, Dario Farina, Strahinja Dosen
OBJECTIVE: Providing sensory feedback to the user of the prosthesis is an important challenge. The common approach is to use tactile stimulation, which is easy to implement but requires training and has limited information bandwidth. In this study, we propose an alternative approach based on augmented reality. APPROACH: We have developed the GLIMPSE, a Google Glass application which connects to the prosthesis via a Bluetooth interface and renders the prosthesis states (EMG signals, aperture, force and contact) using augmented reality (see-through display) and sound (bone conduction transducer)...
March 29, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28351998/analysis-of-al2o3-parylene-c-bilayer-coatings-and-impact-of-microelectrode-topography-on-long-term-stability-of-implantable-neural-arrays
#14
Ryan Caldwell, Himadri Mandal, Rohit Sharma, Florian Solzbacher, Prashant Tathireddy, Loren Rieth
OBJECTIVE: Performance of many dielectric coatings for neural electrodes degrades over time, contributing to loss of neural signals and evoked percepts. Studies using planar test substrates have found that a novel bilayer coating of atomic-layer deposited (ALD) Al2O3 and parylene C is a promising candidate for neural electrode applications, exhibiting superior stability to parylene C alone. However, initial results from bilayer encapsulation testing on non-planar devices have been less positive...
March 29, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28345534/electron-transfer-processes-occurring-on-platinum-neural-stimulating-electrodes-calculated-charge-storage-capacities-are-inaccessible-during-applied-stimulation
#15
Eric M Hudak, Doe Kumsa, Heidi Martin, J Mortimer
<i>Objective.</i> Neural prostheses employing platinum electrodes are often constrained by a charge/charge-density parameter known as the Shannon limit. In examining the relationship between charge injection and observed tissue damage, the electrochemistry at the electrode-tissue interface should be considered. The charge-storage capacity (CSC) is often used as a predictor of how much charge an electrode can inject during stimulation, but calculating charge from a steady-state i-E curve (cyclic voltammogram) over the water window misrepresents how electrodes operate during stimulation...
March 27, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28332484/multivariate-regression-methods-for-estimating-velocity-of-ictal-discharges-from-human-microelectrode-recordings
#16
Jyun-You Liou, Elliot Smith, Lisa Bateman, Guy McKhann, Robert Goodman, Bradley Greger, Tyler Davis, Spencer Kellis, Paul House, Catherine Schevon
OBJECTIVE: Epileptiform discharges, an electrophysiological hallmark of seizures, can propagate across cortical tissue in a manner similar to traveling waves. Recent work has focused attention on the origination and propagation patterns of these discharges, yielding important clues to their source location and mechanism of travel. However, systematic studies of methods for measuring propagation are lacking. APPROACH: We analyzed epileptiform discharges in microelectrode array recordings of human seizures...
March 23, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28327467/automated-detection-of-epileptic-ripples-in-meg-using-beamformer-based-virtual-sensors
#17
Carolina Migliorelli, Joan Alonso, Sergio Romero, Rafal Nowak, Antonio Russi, Miguel Mananas
OBJECTIVE: In epilepsy, high-frequency oscillations (HFOs) are considered events highly linked to the seizure onset zone (SOZ). The detection of HFOs in noninvasive signals such as scalp EEG and MEG is still a challenging task. The aim of this study was to automatize the detection of ripples in MEG signals reducing the high-frequency noise using beamformer-based virtual sensors (VS) and applying an automatic procedure exploring the time-frequency content of the detected events. APPROACH: 200 seconds of MEG signals and simultaneous iEEG were selected in nine patients with refractory epilepsy...
March 22, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28323640/a-micro-scale-printable-nanoclip-for-electrical-stimulation-and-recording-in-small-nerves
#18
Charles A Lissandrello, Winthrop F Gillis, Jun Shen, Ben W Pearre, Flavia Vitale, Matteo Pasquali, Bradley J Holinski, Daniel J Chew, Alice E White, Timothy J Gardner
OBJECTIVE: The vision of bioelectronic medicine is to treat disease by modulating the signaling of visceral nerves near various end organs. In small animal models, the nerves of interest can have small diameters and limited surgical access. New high-resolution methods for building nerve interfaces are desirable. In this study, we present a novel nerve interface and demonstrate its use for stimulation and recording in small nerves. APPROACH: We design and fabricate micro-scale electrode-laden nanoclips capable of interfacing with nerves as small as 50 µm in diameter...
March 21, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28322213/chronic-monitoring-of-lower-urinary-tract-activity-via-a-sacral-dorsal-root-ganglia-interface
#19
Abeer Khurram, Shani Ross, Zachariah Sperry, Aileen Ouyang, Christopher Stephan, Ahmad Jiman, Tim M Bruns
OBJECTIVE: Our goal is to develop an interface that integrates chronic monitoring of lower urinary tract (LUT) activity with stimulation of peripheral pathways. APPROACH: Penetrating microelectrodes were implanted in sacral dorsal root ganglia (DRG) of adult male felines. Peripheral electrodes were placed on or in the pudendal nerve, bladder neck and near the external urethral sphincter. Supra-pubic bladder catheters were implanted for saline infusion and pressure monitoring...
March 21, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28294109/goal-recognition-based-adaptive-brain-computer-interface-for-navigating-immersive-robotic-systems
#20
Mohammad Abu-Alqumsan, Felix Ebert, Angelika Peer
OBJECTIVE: This work proposes principled strategies for self-adaptations in EEG-based Brain-computer interfaces (BCIs) as a way out of the bandwidth bottleneck resulting from the considerable mismatch between the low-bandwidth interface and the bandwidth-hungry application, and a way to enable fluent and intuitive interaction in embodiment systems. The main focus is laid upon inferring the hidden target goals of users while navigating in a remote environment as a basis for possible adaptations...
March 15, 2017: Journal of Neural Engineering
journal
journal
40711
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"