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https://www.readbyqxmd.com/read/28635623/compressed-sensing-reconstruction-based-on-block-sparse-bayesian-learning-in-bearing-condition-monitoring
#1
Jiedi Sun, Yang Yu, Jiangtao Wen
Remote monitoring of bearing conditions, using wireless sensor network (WSN), is a developing trend in the industrial field. In complicated industrial environments, WSN face three main constraints: low energy, less memory, and low operational capability. Conventional data-compression methods, which concentrate on data compression only, cannot overcome these limitations. Aiming at these problems, this paper proposed a compressed data acquisition and reconstruction scheme based on Compressed Sensing (CS) which is a novel signal-processing technique and applied it for bearing conditions monitoring via WSN...
June 21, 2017: Sensors
https://www.readbyqxmd.com/read/28634383/discrepancy-between-objective-and-subjective-cognition-in-adults-with-major-depressive-disorder
#2
Manit Srisurapanont, Sirijit Suttajit, Kanokkwan Eurviriyanukul, Prirada Varnado
This study aimed to determine: i) the correlation between objective and subjective cognition, ii) the correlates of objective and subjective cognition and iii) the predictors of discrepancy between objective and subjective cognition. Participants were non-elderly patients with major depressive disorder (MDD). We assessed subjective cognition using the Perceived Deficit Questionnaire for Depression (PDQ-D) and objective cognition using Face I and Face II tests of the Wechsler Memory Scale, 3rd edition and Digit Span and Matrix Reasoning tests of the Wechsler Intelligence Scale for Adults, 3rd edition...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634266/30-years-of-the-mineralocorticoid-receptor-the-brain-mineralocorticoid-receptor-a-saga-in-three-episodes
#3
REVIEW
Marian Joëls, E Ronald de Kloet
In 1968, Bruce McEwen discovered that (3)H-corticosterone administered to adrenalectomised rats is retained in neurons of hippocampus rather than those of hypothalamus. This discovery signalled the expansion of endocrinology into the science of higher brain regions. With this in mind, our contribution highlights the saga of the brain mineralocorticoid receptor (MR) in three episodes. First, the precloning era dominated by the conundrum of two types of corticosterone-binding receptors in the brain, which led to the identification of the high-affinity corticosterone receptor as the 'promiscuous' MR cloned in 1987 by Jeff Arriza and Ron Evans in addition to the classical glucocorticoid receptor (GR)...
July 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28631873/roles-of-afadin-in-functional-differentiations-of-hippocampal-mossy-fiber-synapse
#4
Xiaoqi Geng, Tomohiko Maruo, Kenji Mandai, Irwan Supriyanto, Muneaki Miyata, Shotaro Sakakibara, Akira Mizoguchi, Yoshimi Takai, Masahiro Mori
A hippocampal mossy fiber synapse has a complex structure and is implicated in learning and memory. In this synapse, the mossy fiber boutons attach to the dendritic shaft by puncta adherentia junctions and wrap around a multiply-branched spine, forming synaptic junctions. We have recently shown using transmission electron microscopy, immunoelectron microscopy and serial block face-scanning electron microscopy that atypical puncta adherentia junctions are formed in the afadin-deficient mossy fiber synapse and that the complexity of postsynaptic spines and mossy fiber boutons, the number of spine heads, the area of postsynaptic densities and the density of synaptic vesicles docked to active zones are decreased in the afadin-deficient synapse...
June 20, 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/28629487/learning-and-memory-in-adolescents-with-critical-biventricular-congenital-heart-disease
#5
Adam R Cassidy, Jane W Newburger, David C Bellinger
OBJECTIVES: Although evidence exists of broadly defined memory impairment among adolescents with critical congenital heart disease (CHD), nuanced investigations of declarative memory in this at-risk population have not been conducted. This study had two primary aims: (1) to conduct a fine-grained analysis of a range of relevant learning and memory processes in adolescents with critical biventricular CHD, and (2) to identify risk, odds, and predictors of memory impairment. METHODS: Data were combined from two single-center studies of neurodevelopmental outcomes in critical CHD...
June 20, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28620776/quantity-discrimination-in-angelfish-pterophyllum-scalare-is-maintained-after-a-30-s-retention-interval-in-the-large-but-not-in-the-small-number-range
#6
Luis M Gómez-Laplaza, Álvaro L Caicoya, Robert Gerlai
The ability to discriminate between sets that differ in the number of elements can be useful in different contexts and may have survival and fitness consequences. As such, numerical/quantity discrimination has been demonstrated in a diversity of animal species. In the laboratory, this ability has been analyzed, for example, using binary choice tests. Furthermore, when the different number of items first presented to the subjects are subsequently obscured, i.e., are not visible at the moment of making a choice, the task requires memory for the size of the sets...
June 15, 2017: Animal Cognition
https://www.readbyqxmd.com/read/28620074/regulatory-bc1-rna-in-cognitive-control
#7
Anna Iacoangeli, Aderemi Dosunmu, Taesun Eom, Dimitre G Stefanov, Henri Tiedge
Dendritic regulatory BC1 RNA is a non-protein-coding (npc) RNA that operates in the translational control of gene expression. The absence of BC1 RNA in BC1 knockout (KO) animals causes translational dysregulation that entails neuronal phenotypic alterations including prolonged epileptiform discharges, audiogenic seizure activity in vivo, and excessive cortical oscillations in the γ frequency band. Here we asked whether BC1 RNA control is also required for higher brain functions such as learning, memory, or cognition...
July 2017: Learning & Memory
https://www.readbyqxmd.com/read/28619858/ptsd-acute-stress-performance-and-decision-making-in-emergency-service-workers
#8
Cheryl Regehr, Vicki R LeBlanc
Despite research identifying high levels of stress and traumatic stress symptoms among those in the emergency services, the impact of these symptoms on performance and hence public safety remains uncertain. This review paper discusses a program of research that has examined the effects of prior critical incident exposure, acute stress, and current post-traumatic symptoms on the performance and decision-making during an acutely stressful event among police officers, police communicators, paramedics and child protection workers...
June 2017: Journal of the American Academy of Psychiatry and the Law
https://www.readbyqxmd.com/read/28611475/murine-lrba-deficiency-causes-ctla-4-deficiency-in-tregs-without-progression-to-immune-dysregulation
#9
Deborah Burnett, Ian Parish, Etienne Masle-Farquhar, Robert Brink, Christopher Goodnow
Inherited mutations in Lipopolysaccharide Responsive Beige-like Anchor (LRBA) cause a recessive human immune dysregulation syndrome with memory B cell and antibody deficiency (common variable immunodeficiency, CVID), inflammatory bowel disease, enlarged spleen and lymph nodes, accumulation of activated T cells, and multiple autoimmune diseases. To understand the pathogenesis of the syndrome, C57BL/6 mice carrying a homozygous truncating mutation in Lrba were produced using CRISPR/Cas9-mediated gene targeting...
June 14, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28604040/emotion-words-adding-face-value
#10
Jennifer M B Fugate, Maria Gendron, Satoshi F Nakashima, Lisa Feldman Barrett
Despite a growing number of studies suggesting that emotion words affect perceptual judgments of emotional stimuli, little is known about how emotion words affect perceptual memory for emotional faces. In Experiments 1 and 2 we tested how emotion words (compared with control words) affected participants' abilities to select a target emotional face from among distractor faces. Participants were generally more likely to false alarm to distractor emotional faces when primed with an emotion word congruent with the face (compared with a control word)...
June 12, 2017: Emotion
https://www.readbyqxmd.com/read/28604030/chatting-in-the-face-of-the-eyewitness-the-impact-of-extraneous-cell-phone-conversation-on-memory-for-a-perpetrator
#11
John E Marsh, Krupali Patel, Katherine Labonté, Emma Threadgold, Faye C Skelton, Cristina Fodarella, Rachel Thorley, Kirsty L Battersby, Charlie D Frowd, Linden J Ball, François Vachon
Cell-phone conversation is ubiquitous within public spaces. The current study investigates whether ignored cell-phone conversation impairs eyewitness memory for a perpetrator. Participants viewed a video of a staged crime in the presence of 1 side of a comprehensible cell-phone conversation (meaningful halfalogue), 2 sides of a comprehensible cell-phone conversation (meaningful dialogue), 1 side of an incomprehensible cell-phone conversation (meaningless halfalogue), or quiet. Between 24 and 28 hr later, participants freely described the perpetrator's face, constructed a single composite image of the perpetrator from memory, and attempted to identify the perpetrator from a sequential lineup...
June 12, 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
https://www.readbyqxmd.com/read/28595046/memory-retrieval-from-first-principles
#12
REVIEW
M Katkov, S Romani, M Tsodyks
The dilemma that neurotheorists face is that (1) detailed biophysical models that can be constrained by direct measurements, while being of great importance, offer no immediate insights into cognitive processes in the brain, and (2) high-level abstract cognitive models, on the other hand, while relevant for understanding behavior, are largely detached from neuronal processes and typically have many free, experimentally unconstrained parameters that have to be tuned to a particular data set and, hence, cannot be readily generalized to other experimental paradigms...
June 7, 2017: Neuron
https://www.readbyqxmd.com/read/28590057/behavioral-abnormalities-in-the-fmr1-ko2-mouse-model-of-fragile-x-syndrome-the-relevance-of-early-life-phases
#13
Julie Gaudissard, Melanie Ginger, Marika Premoli, Maurizio Memo, Andreas Frick, Susanna Pietropaolo
Fragile X syndrome (FXS) is a developmental disorder caused by a mutation in the X-linked FMR1 gene, coding for the FMRP protein which is largely involved in synaptic function. FXS patients present several behavioral abnormalities, including hyperactivity, anxiety, sensory hyper-responsiveness, and cognitive deficits. Autistic symptoms, e.g., altered social interaction and communication, are also often observed: FXS is indeed the most common monogenic cause of autism. Mouse models of FXS are therefore of great interest for research on both FXS and autistic pathologies...
June 7, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28581330/younger-and-older-adults-associative-memory-for-social-information-the-role-of-information-importance
#14
Mary B Hargis, Alan D Castel
The ability to associate items in memory is critical for social interactions. Older adults show deficits in remembering associative information but can sometimes remember high-value information. In two experiments, younger and older participants studied faces, names, and occupations that were of differing social value. There were no age differences in the recall of important information in Experiment 1, but age differences were present for less important information. In Experiment 2, when younger adults' encoding time was reduced, age differences were largely absent...
June 2017: Psychology and Aging
https://www.readbyqxmd.com/read/28581310/patients-with-parkinson-s-disease-display-a-dopamine-therapy-related-negative-bias-and-an-enlarged-range-in-emotional-responses-to-facial-emotional-stimuli
#15
Daniel Lundqvist, Joakim Svärd, Åsa Michelgård Palmquist, Håkan Fischer, Per Svenningsson
OBJECTIVE: The literature on emotional processing in Parkinson's disease (PD) patients shows mixed results. This may be because of various methodological and/or patient-related differences, such as failing to adjust for cognitive functioning, depression, and/or mood. METHOD: In the current study, we tested PD patients and healthy controls (HCs) using emotional stimuli across a variety of tasks, including visual search, short-term memory (STM), categorical perception, and emotional stimulus rating...
June 5, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28579691/does-prediction-error-drive-one-shot-declarative-learning
#16
Andrea Greve, Elisa Cooper, Alexander Kaula, Michael C Anderson, Richard Henson
The role of prediction error (PE) in driving learning is well-established in fields such as classical and instrumental conditioning, reward learning and procedural memory; however, its role in human one-shot declarative encoding is less clear. According to one recent hypothesis, PE reflects the divergence between two probability distributions: one reflecting the prior probability (from previous experiences) and the other reflecting the sensory evidence (from the current experience). Assuming unimodal probability distributions, PE can be manipulated in three ways: (1) the distance between the mode of the prior and evidence, (2) the precision of the prior, and (3) the precision of the evidence...
June 2017: Journal of Memory and Language
https://www.readbyqxmd.com/read/28578187/pupillometric-and-saccadic-measures-of-affective-and-executive-processing-in-anxiety
#17
Piril Hepsomali, Julie A Hadwin, Simon P Liversedge, Matthew Garner
Anxious individuals report hyper-arousal and sensitivity to environmental stimuli, difficulties concentrating, performing tasks efficiently and inhibiting unwanted thoughts and distraction. We used pupillometry and eye-movement measures to compare high vs. low anxious individuals hyper-reactivity to emotional stimuli (facial expressions) and subsequent attentional biases in a memory-guided pro- and antisaccade task during conditions of low and high cognitive load (short vs. long delay). High anxious individuals produced larger and slower pupillary responses to face stimuli, and more erroneous eye-movements, particularly following long delay...
May 31, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28576664/uncertainty-and-stress-why-it-causes-diseases-and-how-it-is-mastered-by-the-brain
#18
REVIEW
Achim Peters, Bruce S McEwen, Karl Friston
The term 'stress' - coined in 1936 - has many definitions, but until now has lacked a theoretical foundation. Here we present an information-theoretic approach - based on the 'free energy principle' - defining the essence of stress; namely, uncertainty. We address three questions: What is uncertainty? What does it do to us? What are our resources to master it? Mathematically speaking, uncertainty is entropy or 'expected surprise'. The 'free energy principle' rests upon the fact that self-organizing biological agents resist a tendency to disorder and must therefore minimize the entropy of their sensory states...
May 30, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28575764/gaze-matters-the-effect-of-gaze-direction-on-emotional-enhancement-of-memory-for-faces-in-patients-with-mesial-temporal-lobe-epilepsy
#19
Łukasz Okruszek, Aleksandra Bala, Marcela Dziekan, Marta Szantroch, Andrzej Rysz, Andrzej Marchel, Sylwia Hyniewska
PURPOSE: The aim of the study was to examine if gaze and emotional expression, both highly self-relevant social signals, affect the recollection accuracy of perceived faces in patients with mesial temporal lobe epilepsy (MTLE). METHODS: Forty patients with MTLE (twenty-one without surgery and nineteen after anterior temporal lobectomy) as well as twenty healthy controls (HC) took part in the study. We used a set of 64 facial stimuli: 32 neutral and 32 emotional displays (16 fearful; 16 angry) from well-established affective stimuli databases...
May 30, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28570691/memory-for-faces-and-voices-varies-as-a-function-of-sex-and-expressed-emotion
#20
Diana S Cortes, Petri Laukka, Christina Lindahl, Håkan Fischer
We investigated how memory for faces and voices (presented separately and in combination) varies as a function of sex and emotional expression (anger, disgust, fear, happiness, sadness, and neutral). At encoding, participants judged the expressed emotion of items in forced-choice tasks, followed by incidental Remember/Know recognition tasks. Results from 600 participants showed that accuracy (hits minus false alarms) was consistently higher for neutral compared to emotional items, whereas accuracy for specific emotions varied across the presentation modalities (i...
2017: PloS One
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