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Frontiers in Neuroscience

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https://www.readbyqxmd.com/read/28740462/corrigendum-low-latency-estimation-of-motor-intentions-to-assist-reaching-movements-along-multiple-sessions-in-chronic-stroke-patients-a-feasibility-study
#1
Jaime Ibáñez, Esther Monge-Pereira, Francisco Molina-Rueda, J Ignacio Serrano, Maria D Del Castillo, Alicia Cuesta-Gómez, María Carratalá-Tejada, Roberto Cano-de-la-Cuerda, Isabel M Alguacil-Diego, Juan C Miangolarra-Page, Jose L Pons
[This corrects the article on p. 126 in vol. 11, PMID: 28367109.].
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28736516/weaker-functional-connectivity-strength-in-patients-with-type-2-diabetes-mellitus
#2
Linlin Liu, Wanhu Li, Yang Zhang, Wen Qin, Shan Lu, Quan Zhang
Type 2 diabetes mellitus (T2DM) is related to cognitive impairments and increased risk for dementia. Neuroimaging studies have demonstrated T2DM-related brain structural and functional changes which are partly associated to the cognitive decline. However, few studies focused on the early neuroimaging findingsin T2DM patients. In this study, a data-driven whole-brain resting state functional connectivity strength (rsFCS) methodwas used to evaluate resting functional changes in 53 T2DM patients compared with 55 matched healthy controls (HCs), and to detect the associations between the rsFCSchanges and cognitive functions in T2DM patients...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28736515/heidelberg-neuro-music-therapy-enhances-task-negative-activity-in-tinnitus-patients
#3
Christoph M Krick, Heike Argstatter, Miriam Grapp, Peter K Plinkert, Wolfgang Reith
Background: Suffering from tinnitus causes mental distress in most patients. Recent findings point toward a diminished activity of the brain's default-mode network (DMN) in subjects with mental disorders including depression or anxiety and also recently in subjects with tinnitus-related distress. We recently developed a therapeutic intervention, namely the Heidelberg Neuro-Music Therapy (HNMT), which shows an effective reduction of tinnitus-related distress following a 1-week short-term treatment. This approach offers the possibility to evaluate the neural changes associated with the improvements in tinnitus distress...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28736514/design-and-validation-of-exoskeleton-actuated-by-soft-modules-toward-neurorehabilitation-vision-based-control-for-precise-reaching-motion-of-upper-limb
#4
Victoria W Oguntosin, Yoshiki Mori, Hyejong Kim, Slawomir J Nasuto, Sadao Kawamura, Yoshikatsu Hayashi
We demonstrated the design, production, and functional properties of the Exoskeleton Actuated by the Soft Modules (EAsoftM). Integrating the 3D printed exoskeleton with passive joints to compensate gravity and with active joints to rotate the shoulder and elbow joints resulted in ultra-light system that could assist planar reaching motion by using the vision-based control law. The EAsoftM can support the reaching motion with compliance realized by the soft materials and pneumatic actuation. In addition, the vision-based control law has been proposed for the precise control over the target reaching motion within the millimeter scale...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28729822/low-intensity-focused-tdcs-over-the-motor-cortex-shows-inefficacy-to-improve-motor-imagery-performance
#5
Irma N Angulo-Sherman, Marisol Rodríguez-Ugarte, Eduardo Iáñez, Jose M Azorín
Transcranial direct current stimulation (tDCS) is a brain stimulation technique that can enhance motor activity by stimulating the motor path. Thus, tDCS has the potential of improving the performance of brain-computer interfaces during motor neurorehabilitation. tDCS effects depend on several aspects, including the current density, which usually varies between 0.02 and 0.08 mA/cm(2), and the location of the stimulation electrodes. Hence, testing tDCS montages at several current levels would allow the selection of current parameters for improving stimulation outcomes and the comparison of montages...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28729821/optimized-model-of-cerebral-ischemia-in-situ-for-the-long-lasting-assessment-of-hippocampal-cell-death
#6
Oksana Rybachuk, Olga Kopach, Volodymyr Krotov, Nana Voitenko, Tatyana Pivneva
Among all the brain, the hippocampus is the most susceptible region to ischemic lesion, with the highest vulnerability of CA1 pyramidal neurons to ischemic damage. This damage may cause either prompt neuronal death (within hours) or with a delayed appearance (over days), providing a window for applying potential therapies to reduce or prevent ischemic impairments. However, the time course when ischemic damage turns to neuronal death strictly depends on experimental modeling of cerebral ischemia and, up to now, studies were predominantly focused on a short time-window-from hours to up to a few days post-lesion...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28729820/auditory-mismatch-negativity-in-response-to-changes-of-counter-balanced-interaural-time-and-level-differences
#7
Christian F Altmann, Ryuhei Ueda, Shigeto Furukawa, Makio Kashino, Tatsuya Mima, Hidenao Fukuyama
Interaural time differences (ITD) and interaural level differences (ILD) both signal horizontal sound source location. To achieve a unified percept of our acoustic environment, these two cues require integration. In the present study, we tested this integration of ITD and ILD with electroencephalography (EEG) by measuring the mismatch negativity (MMN). The MMN can arise in response to spatial changes and is at least partly generated in auditory cortex. In our study, we aimed at testing for an MMN in response to stimuli with counter-balanced ITD/ILD cues...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28725176/a-potential-animal-model-of-maladaptive-palatable-food-consumption-followed-by-delayed-discomfort
#8
Lital Moshe, Liza Bekker, Aron Weller
Introduction: Binging is the consumption of larger amounts of food in a briefer period of time than would normally be consumed under similar circumstances. Binging requires palatable food (PF) to trigger abnormal eating, probably reflecting gene × environment interactions. In this study we examined the impact of trait binge eating (BE) and its compulsive nature on the conflict between hedonic eating of PF and anticipation of a delayed aversive effect. We used female rats as an animal model similar to other models of BE...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28725175/how-different-eeg-references-influence-sensor-level-functional-connectivity-graphs
#9
Yunzhi Huang, Junpeng Zhang, Yuan Cui, Gang Yang, Ling He, Qi Liu, Guangfu Yin
Highlights: Hamming Distance is applied to distinguish the difference of functional connectivity networkThe orientations of sources are testified to influence the scalp Functional Connectivity Graph (FCG) from different references significantlyREST, the reference electrode standardization technique, is proved to have an overall stable and excellent performance in variable situations. The choice of an electroencephalograph (EEG) reference is a practical issue for the study of brain functional connectivity. To study how EEG reference influence functional connectivity estimation (FCE), this study compares the differences of FCE resulting from the different references such as REST (the reference electrode standardization technique), average reference (AR), linked mastoids (LM), and left mastoid references (LR)...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28725174/altered-functional-connectivity-following-an-inflammatory-white-matter-injury-in-the-newborn-rat-a-high-spatial-and-temporal-resolution-intrinsic-optical-imaging-study
#10
Edgar Guevara, Wyston C Pierre, Camille Tessier, Luis Akakpo, Irène Londono, Frédéric Lesage, Gregory A Lodygensky
Very preterm newborns have an increased risk of developing an inflammatory cerebral white matter injury that may lead to severe neuro-cognitive impairment. In this study we performed functional connectivity (fc) analysis using resting-state optical imaging of intrinsic signals (rs-OIS) to assess the impact of inflammation on resting-state networks (RSN) in a pre-clinical model of perinatal inflammatory brain injury. Lipopolysaccharide (LPS) or saline injections were administered in postnatal day (P3) rat pups and optical imaging of intrinsic signals were obtained 3 weeks later...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28713238/targeting-cognitive-impairment-in-multiple-sclerosis-the-road-toward-an-imaging-based-biomarker
#11
Jeroen Van Schependom, Guy Nagels
Multiple Sclerosis (MS) is a neuro-degenerative and -inflammatory disease leading to physical and cognitive impairment, pathological fatigue and depression, and affecting patients' quality of life and employment status. The combination of inflammation, demyelination, and neurodegeneration leads to the emergence of MS lesions, reduced white and gray matter brain volumes, a reduced conduction velocity and microstructural changes in the so-called Normal Appearing White Matter (NAWM). Currently, there are very limited options to treat cognitive impairment and its origin is only poorly understood...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28713237/behavioral-and-neural-correlates-of-executive-function-interplay-between-inhibition-and-updating-processes
#12
Na Young Kim, Ellen Wittenberg, Chang S Nam
This study investigated the interaction between two executive function processes, inhibition and updating, through analyses of behavioral, neurophysiological, and effective connectivity metrics. Although, many studies have focused on behavioral effects of executive function processes individually, few studies have examined the dynamic causal interactions between these two functions. A total of twenty participants from a local university performed a dual task combing flanker and n-back experimental paradigms, and completed the Operation Span Task designed to measure working memory capacity...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28713236/modulation-of-calcitonin-parathyroid-hormone-and-thyroid-hormone-secretion-by-electrical-stimulation-of-sympathetic-and-parasympathetic-nerves-in-anesthetized-rats
#13
Harumi Hotta, Akiko Onda, Harue Suzuki, Philip Milliken, Arun Sridhar
The thyroid and parathyroid glands are dually innervated by sympathetic (cervical sympathetic trunk [CST]) and parasympathetic (superior laryngeal nerve [SLN]) nerve fibers. We examined the effects of electrical stimulation of efferent or afferent nerve fibers innervating the thyroid and parathyroid glands on the secretion of immunoreactive calcitonin (iCT), parathyroid hormone (iPTH), 3,3',5-triiodothyronine (iT3), and thyroxine (iT4) from the thyroid and parathyroid glands. In anesthetized and artificially ventilated rats, thyroid venous blood was collected...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28713235/connecting-the-brain-to-itself-through-an-emulation
#14
Mijail D Serruya
Pilot clinical trials of human patients implanted with devices that can chronically record and stimulate ensembles of hundreds to thousands of individual neurons offer the possibility of expanding the substrate of cognition. Parallel trains of firing rate activity can be delivered in real-time to an array of intermediate external modules that in turn can trigger parallel trains of stimulation back into the brain. These modules may be built in software, VLSI firmware, or biological tissue as in vitro culture preparations or in vivo ectopic construct organoids...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28713234/leftward-deviation-and-asymmetric-speed-of-egocentric-judgment-between-left-and-right-visual-fields
#15
Ying Zhou, Bing Li, Gang Wang, Mingsha Zhang, Yujun Pan
The egocentric reference frame is essential for body orientation and spatial localization of external objects. Recent neuroimaging and lesion studies have revealed that the right hemisphere of humans may play a more dominant role in processing egocentric information than the left hemisphere. However, previous studies of egocentric discrimination mainly focused on assessing the accuracy of egocentric judgment, leaving its timing unexplored. In addition, most previous studies never monitored the subjects' eye position during the experiments, so the influence of eye position on egocentric judgment could not be excluded...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28713233/the-role-of-the-interplay-between-stimulus-type-and-timing-in-explaining-bci-illiteracy-for-visual-p300-based-brain-computer-interfaces
#16
Roberta Carabalona
Visual P300-based Brain-Computer Interface (BCI) spellers enable communication or interaction with the environment by flashing elements in a matrix and exploiting consequent changes in end-user's brain activity. Despite research efforts, performance variability and BCI-illiteracy still are critical issues for real world applications. Moreover, there is a quite unaddressed kind of BCI-illiteracy, which becomes apparent when the same end-user operates BCI-spellers intended for different applications: our aim is to understand why some well performers can become BCI-illiterate depending on speller type...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28713232/detection-of-movement-related-cortical-potentials-from-eeg-using-constrained-ica-for-brain-computer-interface-applications
#17
Fatemeh Karimi, Jonathan Kofman, Natalie Mrachacz-Kersting, Dario Farina, Ning Jiang
The movement related cortical potential (MRCP), a slow cortical potential from the scalp electroencephalogram (EEG), has been used in real-time brain-computer-interface (BCI) systems designed for neurorehabilitation. Detecting MPCPs in real time with high accuracy and low latency is essential in these applications. In this study, we propose a new MRCP detection method based on constrained independent component analysis (cICA). The method was tested for MRCP detection during executed and imagined ankle dorsiflexion of 24 healthy participants, and compared with four commonly used spatial filters for MRCP detection in an offline experiment...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28713231/grip-force-and-3d-push-pull-force-estimation-based-on-semg-and-grnn
#18
Changcheng Wu, Hong Zeng, Aiguo Song, Baoguo Xu
The estimation of the grip force and the 3D push-pull force (push and pull force in the three dimension space) from the electromyogram (EMG) signal is of great importance in the dexterous control of the EMG prosthetic hand. In this paper, an action force estimation method which is based on the eight channels of the surface EMG (sEMG) and the Generalized Regression Neural Network (GRNN) is proposed to meet the requirements of the force control of the intelligent EMG prosthetic hand. Firstly, the experimental platform, the acquisition of the sEMG, the feature extraction of the sEMG and the construction of GRNN are described...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28706474/commentary-parsing-the-behavioral-and-brain-mechanisms-of-third-party-punishment
#19
COMMENT
Anne-Marie Nußberger, Mary Montgomery, Yingyi Luo, Hongbo Yu
No abstract text is available yet for this article.
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28706473/short-term-internet-search-training-is-associated-with-increased-fractional-anisotropy-in-the-superior-longitudinal-fasciculus-in-the-parietal-lobe
#20
Guangheng Dong, Hui Li, Marc N Potenza
The Internet search engine has become an indispensable tool for many people, yet the ways in which Internet searching may alter brain structure and function is poorly understood. In this study, we investigated the influence of short-term Internet-search "training" on white matter microstructure using diffusion tensor imaging (DTI). Fifty-nine valid subjects (Experimental group, 43; Control group, 16) completed the whole procedure: pre- DTI scan, 6-day's training and post- DTI scan. Using track-based spatial statistics, we found increased fractional anisotropy in the right superior longitudinal fasciculus at post-test as compared to pre-test in experimental group...
2017: Frontiers in Neuroscience
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