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Frontiers in Neuroscience

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https://www.readbyqxmd.com/read/29780303/closed-loop-deep-brain-stimulation-for-ptsd-addiction-and-disorders-of-affective-facial-interpretation-review-and-discussion-of-potential-biomarkers-and-stimulation-paradigms
#1
REVIEW
Robert W Bina, Jean-Phillipe Langevin
The treatment of psychiatric diseases with Deep Brain Stimulation (DBS) is becoming more of a reality as studies proliferate the indications and targets for therapies. Opinions on the initial failures of DBS trials for some psychiatric diseases point to a certain lack of finesse in using an Open Loop DBS (OLDBS) system in these dynamic, cyclical pathologies. OLDBS delivers monomorphic input into dysfunctional brain circuits with modulation of that input via human interface at discrete time points with no interim modulation or adaptation to the changing circuit dynamics...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29780302/unified-bayesian-estimator-of-eeg-reference-at-infinity-rrest-regularized-reference-electrode-standardization-technique
#2
Shiang Hu, Dezhong Yao, Pedro A Valdes-Sosa
The choice of reference for the electroencephalogram (EEG) is a long-lasting unsolved issue resulting in inconsistent usages and endless debates. Currently, both the average reference (AR) and the reference electrode standardization technique (REST) are two primary, apparently irreconcilable contenders. We propose a theoretical framework to resolve this reference issue by formulating both (a) estimation of potentials at infinity, and (b) determination of the reference, as a unified Bayesian linear inverse problem, which can be solved by maximum a posterior estimation...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29780301/when-the-ostrich-algorithm-fails-blanking-method-affects-spike-train-statistics
#3
Kevin Joseph, Soheil Mottaghi, Olaf Christ, Thomas J Feuerstein, Ulrich G Hofmann
Modern electroceuticals are bound to employ the usage of electrical high frequency (130-180 Hz) stimulation carried out under closed loop control, most prominent in the case of movement disorders. However, particular challenges are faced when electrical recordings of neuronal tissue are carried out during high frequency electrical stimulation, both in-vivo and in-vitro . This stimulation produces undesired artifacts and can render the recorded signal only partially useful. The extent of these artifacts is often reduced by temporarily grounding the recording input during stimulation pulses...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29780300/encoding-of-sucrose-s-palatability-in-the-nucleus-accumbens-shell-and-its-modulation-by-exteroceptive-auditory-cues
#4
Miguel Villavicencio, Mario G Moreno, Sidney A Simon, Ranier Gutierrez
Although the palatability of sucrose is the primary reason for why it is over consumed, it is not well understood how it is encoded in the nucleus accumbens shell (NAcSh), a brain region involved in reward, feeding, and sensory/motor transformations. Similarly, untouched are issues regarding how an external auditory stimulus affects sucrose palatability and, in the NAcSh, the neuronal correlates of this behavior. To address these questions in behaving rats, we investigated how food-related auditory cues modulate sucrose's palatability...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29773976/facing-the-challenges-of-neuropeptide-gene-knockouts-why-do-they-not-inhibit-reproduction-in-adult-teleost-fish
#5
REVIEW
Vance L Trudeau
Genetic manipulation of teleost endocrine systems started with transgenic overexpression of pituitary growth hormone. Such strategies enhance growth and reduce fertility, but the fish still breed. Genome editing using transcription activator-like effector nuclease in zebrafish and medaka has established the role of follicle stimulating hormone for gonadal development and luteinizing hormone for ovulation. Attempts to genetically manipulate the hypophysiotropic neuropeptidergic systems have been less successful...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29773975/cold-shock-induced-protein-rbm3-but-not-mild-hypothermia-protects-human-sh-sy5y-neuroblastoma-cells-from-mpp-induced-neurotoxicity
#6
Hai-Jie Yang, Xiang Shi, Fei Ju, Bei-Ning Hao, Shuang-Ping Ma, Lei Wang, Bin-Feng Cheng, Mian Wang
The cold shock protein RBM3 can mediate mild hypothermia-related protection in neurodegeneration such as Alzheimer's disease. However, it remains unclear whether RBM3 and mild hypothermia provide same protection in model of Parkinson's disease (PD), the second most common neurodegenerative disorder. In this study, human SH-SY5Y neuroblastoma cells subjected to insult by 1-methyl-4-phenylpyridinium (MPP+ ) served as an in-vitro model of PD. Mild hypothermia (32°C) aggravated MPP+ -induced apoptosis, which was boosted when RBM3 was silenced by siRNA...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29773974/orexin-a-differentially-influences-the-extinction-retention-of-recent-and-remote-fear-memory
#7
Le Shi, Wenhao Chen, Jiahui Deng, Sijing Chen, Ying Han, Muhammad Z Khan, Jiajia Liu, Jianyu Que, Yanping Bao, Lin Lu, Jie Shi
Recently the role of the orexin system in the learning and memory, especially orexin A, which could enhance fear memory through regulating the activity of amygdala, has drawn considerable attention. However, the relationship between orexin A and extinction memory remains unclear. To investigate the effect of orexin A on extinction memory in humans, we recruited 43 male subjects and divided them into a recent group and remote group. After acquiring Pavlovian fear conditioning, individuals in recent group experienced fear extinction 24 h after acquisition, and remote group underwent extinction 2 weeks later...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29773973/comprehensive-investigation-of-white-matter-tracts-in-professional-chess-players-and-relation-to-expertise-region-of-interest-and-dmri-connectometry
#8
Mahsa Mayeli, Farzaneh Rahmani, Mohammad Hadi Aarabi
Purpose: Expertise is the product of training. Few studies have used functional connectivity or conventional diffusometric methods to identify neural underpinnings of chess expertise. Diffusometric variables of white matter might reflect these adaptive changes, along with changes in structural connectivity, which is a sensitive measure of microstructural changes. Method: Diffusometric variables of 29 professional chess players and 29 age-sex matched controls were extracted for white matter regions based on John Hopkin's Mori white matter atlas and partially correlated against professional training time and level of chess proficiency...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29770111/chronic-caffeine-treatment-protects-against-%C3%AE-synucleinopathy-by-reestablishing-autophagy-activity-in-the-mouse-striatum
#9
Yanan Luan, Xiangpeng Ren, Wu Zheng, Zhenhai Zeng, Yingzi Guo, Zhidong Hou, Wei Guo, Xingjun Chen, Fei Li, Jiang-Fan Chen
Despite converging epidemiological evidence for the inverse relationship of regular caffeine consumption and risk of developing Parkinson's disease (PD) with animal studies demonstrating protective effect of caffeine in various neurotoxin models of PD, whether caffeine can protect against mutant α-synuclein (α-Syn) A53T-induced neurotoxicity in intact animals has not been examined. Here, we determined the effect of chronic caffeine treatment using the α-Syn fibril model of PD by intra-striatal injection of preformed A53T α-Syn fibrils...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29770110/a-pcr-based-method-for-rna-probes-and-applications-in-neuroscience
#10
Ruifang Hua, Shanshan Yu, Mugen Liu, Haohong Li
In situ hybridization (ISH) is a powerful technique that is used to detect the localization of specific nucleic acid sequences for understanding the organization, regulation, and function of genes. However, in most cases, RNA probes are obtained by in vitro transcription from plasmids containing specific promoter elements and mRNA-specific cDNA. Probes originating from plasmid vectors are time-consuming and not suitable for the rapid gene mapping. Here, we introduce a simplified method to prepare digoxigenin (DIG)-labeled non-radioactive RNA probes based on polymerase chain reaction (PCR) amplification and applications in free-floating mouse brain sections...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29767142/corrigendum-design-and-preliminary-feasibility-study-of-a-soft-robotic-glove-for-hand-function-assistance-in-stroke-survivors
#11
Hong Kai Yap, Jeong Hoon Lim, Fatima Nasrallah, Chen-Hua Yeow
[This corrects the article on p. 547 in vol. 11, PMID: 29062267.].
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29765301/the-additional-contribution-of-white-matter-hyperintensity-location-to-post-stroke-cognitive-impairment-insights-from-a-multiple-lesion-symptom-mapping-study
#12
Lei Zhao, Adrian Wong, Yishan Luo, Wenyan Liu, Winnie W C Chu, Jill M Abrigo, Ryan K L Lee, Vincent Mok, Lin Shi
White matter hyperintensities (WMH) are common in acute ischemic stroke patients. Although WMH volume has been reported to influence post-stroke cognition, it is still not clear whether WMH location, independent of acute ischemic lesion (AIL) volume and location, contributes to cognitive impairment after stroke. Here, we proposed a multiple-lesion symptom mapping model that considers both the presence of WMH and AIL to measure the additional contribution of WMH locations to post-stroke cognitive impairment...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29765300/detection-of-dna-double-strand-breaks-by-%C3%AE-h2ax-does-not-result-in-53bp1-recruitment-in-mouse-retinal-tissues
#13
Brigitte Müller, N M Ellinwood, Birgit Lorenz, Knut Stieger
Gene editing is an attractive potential treatment of inherited retinopathies. However, it often relies on endogenous DNA repair. Retinal DNA repair is incompletely characterized in humans and animal models. We investigated recruitment of the double stranded break (DSB) repair complex of γH2AX and 53bp1 in both developing and mature mouse neuroretinas. We evaluated the immunofluorescent retinal expression of these proteins during development (P07-P30) in normal and retinal degeneration models, as well as in potassium bromate induced DSB repair in normal adult (3 months) retinal explants...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29765299/src-kinase-dependent-rapid-non-genomic-modulation-of-hippocampal-spinogenesis-induced-by-androgen-and-estrogen
#14
Mika Soma, Jonghyuk Kim, Asami Kato, Suguru Kawato
Dendritic spine is a small membranous protrusion from a neuron's dendrite that typically receives input from an axon terminal at the synapse. Memories are stored in synapses which consist of spines and presynapses. Rapid modulations of dendritic spines induced by hippocampal sex steroids, including dihydrotestosterone (DHT), testosterone (T), and estradiol (E2), are essential for synaptic plasticity. Molecular mechanisms underlying the rapid non-genomic modulation through synaptic receptors of androgen (AR) and estrogen (ER) as well as its downstream kinase signaling, however, have not been well understood...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29765298/real-time-tracking-of-selective-auditory-attention-from-m-eeg-a-bayesian-filtering-approach
#15
Sina Miran, Sahar Akram, Alireza Sheikhattar, Jonathan Z Simon, Tao Zhang, Behtash Babadi
Humans are able to identify and track a target speaker amid a cacophony of acoustic interference, an ability which is often referred to as the cocktail party phenomenon. Results from several decades of studying this phenomenon have culminated in recent years in various promising attempts to decode the attentional state of a listener in a competing-speaker environment from non-invasive neuroimaging recordings such as magnetoencephalography (MEG) and electroencephalography (EEG). To this end, most existing approaches compute correlation-based measures by either regressing the features of each speech stream to the M/EEG channels (the decoding approach) or vice versa (the encoding approach)...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29765297/group-analysis-in-fieldtrip-of-time-frequency-responses-a-pipeline-for-reproducibility-at-every-step-of-processing-going-from-individual-sensor-space-representations-to-an-across-group-source-space-representation
#16
Lau M Andersen
An important aim of an analysis pipeline for magnetoencephalographic (MEG) data is that it allows for the researcher spending maximal effort on making the statistical comparisons that will answer his or her questions. The example question being answered here is whether the so-called beta rebound differs between novel and repeated stimulations. Two analyses are presented: going from individual sensor space representations to, respectively, an across-group sensor space representation and an across-group source space representation...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29760647/discrimination-and-recognition-of-phantom-finger-sensation-through-transcutaneous-electrical-nerve-stimulation
#17
Mengnan Li, Dingguo Zhang, Yao Chen, Xinyu Chai, Longwen He, Ying Chen, Jinyao Guo, Xiaohong Sui
Tactile sensory feedback would make a significant contribution to the state-of-the-art prosthetic hands for achieving dexterous manipulation over objects. Phantom finger sensation, also called referred sensation of lost fingers, can be noninvasively evoked by transcutaneous electrical nerve stimulation (TENS) of the phantom finger territories (PFTs) near the stump for upper-limb amputees. As such, intuitive sensations pertaining to lost fingers could be non-invasively generated. However, the encoding of stimulation parameters into tactile sensations that can be intuitively interpreted by the users remains a significant challenge...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29760646/dgcr8-promotes-neural-progenitor-expansion-and-represses-neurogenesis-in-the-mouse-embryonic-neocortex
#18
Nadin Hoffmann, Stefan C Weise, Federica Marinaro, Tanja Vogel, Davide De Pietri Tonelli
DGCR8 and DROSHA are the minimal functional core of the Microprocessor complex essential for biogenesis of canonical microRNAs and for the processing of other RNAs. Conditional deletion of Dgcr8 and Drosha in the murine telencephalon indicated that these proteins exert crucial functions in corticogenesis. The identification of mechanisms of DGCR8- or DROSHA-dependent regulation of gene expression in conditional knockout mice are often complicated by massive apoptosis. Here, to investigate DGCR8 functions on amplification/differentiation of neural progenitors cells (NPCs) in corticogenesis, we overexpress Dgcr8 in the mouse telencephalon, by in utero electroporation ( IU Ep)...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29760645/systems-analysis-of-human-visuo-myoelectric-control-facilitated-by-anodal-transcranial-direct-current-stimulation-in-healthy-humans
#19
Vinh Kha, Aguida S Foerster, Susan Bennett, Michael A Nitsche, Filip Stefanovic, Anirban Dutta
Induction of neuroplasticity by transcranial direct current stimulation (tDCS) applied to the primary motor cortex facilitates motor learning of the upper extremities in healthy humans. The impact of tDCS on lower limb functions has not been studied extensively so far. In this study, we applied a system identification approach to investigate the impact of anodal transcranial direct current stimulation of the leg area of the motor cortex via the human visuo-myoelectric controller. The visuo-myoelectric reaching task (VMT) involves ballistic muscle contraction after a visual cue...
2018: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29760644/an-algorithm-for-preclinical-diagnosis-of-alzheimer-s-disease
#20
REVIEW
Tapan K Khan
Almost all Alzheimer's disease (AD) therapeutic trials have failed in recent years. One of the main reasons for failure is due to designing the disease-modifying clinical trials at the advanced stage of the disease when irreversible brain damage has already occurred. Diagnosis of the preclinical stage of AD and therapeutic intervention at this phase, with a perfect target, are key points to slowing the progression of the disease. Various AD biomarkers hold enormous promise for identifying individuals with preclinical AD and predicting the development of AD dementia in the future, but no single AD biomarker has the capability to distinguish the AD preclinical stage...
2018: Frontiers in Neuroscience
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