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Temporal processing

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https://www.readbyqxmd.com/read/29783243/-electromyographic-characteristics-of-temporal-and-masticatory-muscles-in-patients-with-compression-dislocation-dysfunction-of-temporomandibular-joints-of-different-severity
#1
Pavlo I Yatsenko, Oleg V Rybalov, Oleg I Yatsenko, Vadym M Novikov, Dmytro M Kоrol, Dmytro D Kindiy, Victor D Kindiy
OBJECTIVE: Introduction: The main causes of dysfunctional conditions of the temporomandibular joints (TMJ), are occlusal, neurogenic, orthodontic disorders. The muscular component of TMJ is determines the dynamic anatomical and functional state of the mandible Therefore, in the diagnosis of dysfunctions and understanding of their pathogenesis belongs to the electromyographic method of investigation. The aim of the work was a comparative assessment of the bioelectrical activity of the actual chewing and temporal muscles in patients with musculo-articular compressiondislocation dysfunction of the TMJ of various severity...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783177/evaluating-long-term-patterns-of-decreasing-groundwater-discharge-through-a-lake-bottom-permeable-reactive-barrier
#2
Timothy D McCobb, Martin A Briggs, Denis R LeBlanc, Frederick D Day-Lewis, Carole D Johnson
Identifying and quantifying groundwater exchange is critical when considering contaminant fate and transport at the groundwater/surface-water interface. In this paper, areally distributed temperature and point seepage measurements are used to efficiently assess spatial and temporal groundwater discharge patterns through a glacial-kettle lakebed area containing a zero-valent iron permeable reactive barrier (PRB). Concern was that the PRB was becoming less permeable with time owing to biogeochemical processes within the PRB...
May 18, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29783145/electrochemical-biosensor-system-using-a-cmos-microelectrode-array-provides-high-spatially-and-temporally-resolved-images
#3
William Tedjo, Jasmine E Nejad, Rachel Feeny, Lang Yang, Charles S Henry, Stuart Tobet, Tom Chen
The ability to view biological events in real time has contributed significantly to research in the life sciences. While video capture of real time changes in anatomical relationships is important, it is equally important to visualize real time changes in the chemical communications that drive cell behaviors. This paper describes an electrochemical imaging system capable of capturing changes in chemical gradients in live tissue slices. The system consists of a CMOS microchip with 8192 configurable Pt surface electrodes, on-chip potentiostat, on-chip control logic, and a microfluidic device designed to interface with the CMOS chip to support ex vivo tissue experimentation...
April 10, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29782926/decoding-cell-signalling-and-regulation-of-oligodendrocyte-differentiation
#4
REVIEW
A K Santos, M S Vieira, R Vasconcellos, V A M Goulart, A H Kihara, R R Resende
Oligodendrocytes are fundamental for the functioning of the nervous system; they participate in several cellular processes, including axonal myelination and metabolic maintenance for astrocytes and neurons. In the mammalian nervous system, they are produced through waves of proliferation and differentiation, which occur during embryogenesis. However, oligodendrocytes and their precursors continue to be generated during adulthood from specific niches of stem cells that were not recruited during development. Deficiencies in the formation and maturation of these cells can generate pathologies mainly related to myelination...
May 18, 2018: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29782908/deficits-in-temporal-order-memory-induced-by-interferon-alpha-ifn-%C3%AE-treatment-are-rescued-by-aerobic-exercise
#5
Sally Barlow, Briana Fahey, Kimberley J Smith, Johannes Passecker, Andrea Della-Chiesa, Vincent Hok, Jennifer S Day, Charlotte K Callaghan, Shane M O'Mara
Patients receiving cytokine immunotherapy with IFN-α frequently present with neuropsychiatric consequences and cognitive impairments, including a profound depressive-like symptomatology. While the neurobiological substrates of the dysfunction that leads to adverse events in IFN-α-treated patients remains ill-defined, dysfunctions of the hippocampus and prefrontal cortex (PFC) are strong possibilities. To date, hippocampal deficits have been well-characterised; there does however remain a lack of insight into the nature of prefrontal participation...
May 18, 2018: Brain Research Bulletin
https://www.readbyqxmd.com/read/29782831/mapping-cellular-polarity-networks-using-mass-spectrometry-based-strategies
#6
REVIEW
Avais M Daulat, Tania M Puvirajesinghe, Luc Camoin, Jean-Paul Borg
Cell polarity is a vital biological process involved in the building, maintenance and normal functioning of tissues in invertebrates and vertebrates. Unsurprisingly, molecular defects affecting polarity organization and functions have a strong impact on tissue homeostasis, embryonic development and adult life, and may directly or indirectly lead to diseases. Genetic studies have demonstrated the causative effect of several polarity genes in diseases, however much remains to be clarified before a comprehensive view of the molecular organization and regulation of the protein networks associated with polarity proteins is obtained...
May 18, 2018: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29782369/neuroimaging-in-epilepsy
#7
Meneka Kaur Sidhu, John S Duncan, Josemir W Sander
PURPOSE OF REVIEW: Epilepsy neuroimaging is important for detecting the seizure onset zone, predicting and preventing deficits from surgery and illuminating mechanisms of epileptogenesis. An aspiration is to integrate imaging and genetic biomarkers to enable personalized epilepsy treatments. RECENT FINDINGS: The ability to detect lesions, particularly focal cortical dysplasia and hippocampal sclerosis, is increased using ultra high-field imaging and postprocessing techniques such as automated volumetry, T2 relaxometry, voxel-based morphometry and surface-based techniques...
May 17, 2018: Current Opinion in Neurology
https://www.readbyqxmd.com/read/29782329/longitudinal-fmri-study-of-language-recovery-after-a-left-hemispheric-ischemic-stroke
#8
Rodolphe Nenert, Jane B Allendorfer, Amber M Martin, Christi Banks, Jennifer Vannest, Scott K Holland, Kimberly W Hart, Christopher J Lindsell, Jerzy P Szaflarski
BACKGROUND: Recovery from stroke-induced aphasia is typically protracted and involves complex functional reorganization. The relative contributions of the lesioned and non-lesioned hemispheres to this process have been examined in several cross-sectional studies but longitudinal studies involving several time-points and large numbers of subjects are scarce. OBJECTIVE: The aim of this study was to address the gaps in the literature by longitudinally studying the evolution of post-stroke lateralization and localization of language-related fMRI activation in the first year after single left hemispheric ischemic stroke...
2018: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/29781084/musical-rhythm-and-reading-development-does-beat-processing-matter
#9
REVIEW
Ola Ozernov-Palchik, Aniruddh D Patel
There is mounting evidence for links between musical rhythm processing and reading-related cognitive skills, such as phonological awareness. This may be because music and speech are rhythmic: both involve processing complex sound sequences with systematic patterns of timing, accent, and grouping. Yet, there is a salient difference between musical and speech rhythm: musical rhythm is often beat-based (based on an underlying grid of equal time intervals), while speech rhythm is not. Thus, the role of beat-based processing in the reading-rhythm relationship is not clear...
May 20, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29780977/modeling-interdependent-and-periodic-real-world-action-sequences
#10
Takeshi Kurashima, Tim Althoff, Jure Leskovec
Mobile health applications, including those that track activities such as exercise, sleep, and diet, are becoming widely used. Accurately predicting human actions in the real world is essential for targeted recommendations that could improve our health and for personalization of these applications. However, making such predictions is extremely difficult due to the complexities of human behavior, which consists of a large number of potential actions that vary over time, depend on each other, and are periodic...
April 2018: Proceedings of the International World-Wide Web Conference
https://www.readbyqxmd.com/read/29780928/spontaneous-regression-of-epithelial-downgrowth-from-clear-corneal-phacoemulsification-wound
#11
Ryan M Jaber, Mark Harrod, Jeffrey M Goshe
Purpose: To report a case of spontaneous regression of optical coherence tomography (OCT) and confocal microscopy-supported epithelial downgrowth associated with clear corneal phacoemulsification wound. Observations: A 66-year-old Caucasian male presented two years after phacoemulsification in the left eye with an enlarging cornea endothelial lesion in that eye. His early post-operative course had been complicated by corneal edema and iris transillumination defects...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780461/-in-operando-imaging-of-self-catalyzed-formaldehyde-burst-in-methanol-oxidation-reactions-under-open-circuit-conditions
#12
Liang Yuan, Meng Li, Tinglian Yuan, Yimin Fang, Wei Wang
We employ a surface plasmon resonance imaging (SPRi) technique to monitor the in operando process of formaldehyde (HCHO) production during methanol oxidation with high spatial and temporal resolutions. While common wisdom suggests HCHO is generated as an intermediate during continuous electron transfer towards CO2 , we find that the majority of HCHO is produced via self-catalyzed chemical and electrochemical reactions under open-circuit conditions, which lead to an unprecedented HCHO burst immediately after withdrawal of external potential...
April 7, 2018: Chemical Science
https://www.readbyqxmd.com/read/29780332/myoclonic-jerks-and-schizophreniform-syndrome-case-report-and-literature-review
#13
Dominique Endres, Dirk-M Altenmüller, Bernd Feige, Simon J Maier, Kathrin Nickel, Sabine Hellwig, Jördis Rausch, Christiane Ziegler, Katharina Domschke, John P Doerr, Karl Egger, Ludger Tebartz van Elst
Background: Schizophreniform syndromes can be divided into primary idiopathic forms as well as different secondary organic subgroups (e.g., paraepileptic, epileptic, immunological, or degenerative). Secondary epileptic explanatory approaches have often been discussed in the past, due to the high rates of electroencephalography (EEG) alterations in patients with schizophrenia. In particular, temporal lobe epilepsy is known to be associated with schizophreniform symptoms in well-described constellations. In the literature, juvenile myoclonic epilepsy has been linked to emotionally unstable personality traits, depression, anxiety, and executive dysfunction; however, the association with schizophrenia is largely unclear...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29780184/pore-scale-hydrodynamics-in-a-progressively-bioclogged-three-dimensional-porous-medium-3-d-particle-tracking-experiments-and-stochastic-transport-modeling
#14
M Carrel, V L Morales, M Dentz, N Derlon, E Morgenroth, M Holzner
Biofilms are ubiquitous bacterial communities that grow in various porous media including soils, trickling, and sand filters. In these environments, they play a central role in services ranging from degradation of pollutants to water purification. Biofilms dynamically change the pore structure of the medium through selective clogging of pores, a process known as bioclogging. This affects how solutes are transported and spread through the porous matrix, but the temporal changes to transport behavior during bioclogging are not well understood...
March 2018: Water Resources Research
https://www.readbyqxmd.com/read/29780056/potential-roles-of-the-poly-a-binding-proteins-in-translational-regulation-during-spermatogenesis
#15
Saffet Ozturk, Fatma Uysal
Spermatogenesis is briefly defined as the production of mature spermatozoa from spermatogonial stem cells at the end of a strictly regulated process. It is well known that, to a large extent, transcriptional activity ceases at mid-spermiogenesis. Several mRNAs transcribed during early stages of spermatogenesis are stored as ribonucleoproteins (RNPs). During the later stages, translational control of these mRNAs is mainly carried out in a time dependent-manner by poly(A)-binding proteins (PABPs) in cooperation with other RNA-binding proteins and translation-related factors...
May 18, 2018: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/29779051/specificity-of-action-selection-modulates-the-perceived-temporal-order-of-action-and-sensory-events
#16
Andrea Desantis, Patrick Haggard, Yuji Ikegaya, Nobuhiro Hagura
The perceived temporal order of actions and changes in the environment is crucial for our inferences of causality. Sensory events presented shortly after an action are more likely considered as self-generated compared to the same events occurring before action execution. However, the estimation of when an action or a sensory change occurred is a challenge for the human brain. This estimation is formed from available sensory information combined with internal representations. Researchers suggested that internal signals associated with action preparation drive our awareness of initiating an action...
May 19, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29778763/oscillation-patterns-of-local-field-potentials-in-the-dorsal-striatum-and-sensorimotor-cortex-during-the-encoding-maintenance-and-decision-stages-for-the-ordinal-comparison-of-sub-and-supra-second-signal-durations
#17
REVIEW
Bon-Mi Gu, Keshav Kukreja, Warren H Meck
Ordinal comparison of successively presented signal durations requires a) the encoding of the first signal duration (standard), b) maintenance of temporal information specific to the standard duration in memory, and c) timing of the second signal duration (comparison) during which a comparison is made of the first and second durations. Rats were first trained to make ordinal comparisons of signal durations within three time ranges using 0.5, 1.0, and 3.0-s standard durations. Local field potentials were then recorded from the dorsal striatum and sensorimotor cortex in order to investigate the pattern of neural oscillations during each phase of the ordinal-comparison process...
May 17, 2018: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29778627/impaired-spatial-processing-in-a-mouse-model-of-fragile-x-syndrome
#18
Mohamed Ghilan, Luis Bettio, Athena Noonan, Patricia S Brocardo, Joana Gil-Mohapel, Brian R Christie
Fragile X syndrome (FXS) is the most common form of inherited intellectual impairment. The Fmr1-/y mouse model has been previously shown to have deficits in context discrimination tasks but not in the elevated plus-maze. To further characterize this FXS mouse model and determine whether hippocampal-mediated behaviours are affected in these mice, dentate gyrus (DG)-dependent spatial processing and Cornu Ammonis 1 (CA1)-dependent temporal order discrimination tasks were evaluated. In agreement with previous findings of long-term potentiation deficits in the DG of this transgenic model of FXS, the results reported here demonstrate that Fmr1-/y mice perform poorly in the DG-dependent metric change spatial processing task...
May 17, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29777961/non-viral-delivery-of-an-optogenetic-tool-into-cells-with-self-healing-hydrogel
#19
Fu-Yu Hsieh, Hao-Wei Han, Xiao-Ru Chen, Chii-Shen Yang, Yen Wei, Shan-Hui Hsu
Optogenetics offers unique, temporally precise control of neural activity in genetically targeted specific neurons that express light-sensitive opsin molecules. Three-dimensional (3D) delivery of optogenetics can be realized by co-injection of bacteriorhodopsin (HEBR) plasmid with a chitosan-based self-healing hydrogel with strong shear-thinning properties. The HEBR protein shows photoelectrical properties and can be used as an optical switch for cell activation. We optimize the shear force generated during the process of injection (∼100 Pa), which is transient because of the self-healing nature of the hydrogel...
May 9, 2018: Biomaterials
https://www.readbyqxmd.com/read/29777825/the-temporal-evolution-of-conceptual-object-representations-revealed-through-models-of-behavior-semantics-and-deep-neural-networks
#20
B B Bankson, M N Hebart, I I A Groen, C I Baker
Visual object representations are commonly thought to emerge rapidly, yet it has remained unclear to what extent early brain responses reflect purely low-level visual features of these objects and how strongly those features contribute to later categorical or conceptual representations. Here, we aimed to estimate a lower temporal bound for the emergence of conceptual representations by defining two criteria that characterize such representations: 1) conceptual object representations should generalize across different exemplars of the same object, and 2) these representations should reflect high-level behavioral judgments...
May 16, 2018: NeuroImage
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