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feedback-related negativity

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https://www.readbyqxmd.com/read/28816432/an-integrated-microsystem-for-real-time-detection-and-threshold-activated-treatment-of-bacterial-biofilms
#1
Sowmya Subramanian, Ekaterina I Tolstaya, Thomas Winkler, William E Bentley, Reza Ghodssi
Bacterial biofilms are the primary cause of infections in medical implants and catheters. Delayed detection of biofilm infections contributes to the widespread use of high doses of antibiotics, leading to the emergence of antibiotic-resistant bacterial strains. Accordingly, there is an urgent need for systems that can rapidly detect and treat biofilm infections in situ. As a step towards this goal, in this work we have developed for the first time a threshold-activated feedback-based impedance sensor-treatment system for combined real-time detection and treatment of biofilms...
August 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28813949/monitoring-brain-potentials-to-guide-neurorehabilitation-of-tracking-impairments
#2
Boris Yazmir, Miriam Reiner
Motor impairments come in different forms. One class of motor impairments, relates to accuracy of tracking a moving object, as, for instance, when chasing in an attempt to catch it. Here we look at neural signals associated with errors in tracking, and the implications for brain-computer-interfaces that target impairment-tailored rehabilitation. As a starting point, we characterized EEG signals evoked by tracking errors during continuous natural motion, in healthy participants. Participants played a virtual 3D, ecologically valid haptic tennis game, and had to track a moving tennis ball in order to hit and send the ball towards the opponent's court...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28803923/stress-induced-neural-reorganization-a-conceptual-framework-linking-depression-and-alzheimer-s-disease
#3
REVIEW
Jennifer A Ross, Gediminas Gliebus, Elisabeth J Van Bockstaele
Chronic stress is a risk factor for a number of physiological disorders including cardiovascular disease, obesity and gastrointestinal disorders, as well as psychiatric and neurodegenerative disorders. There are a number of underlying molecular and cellular mechanisms altered in the course of chronic stress, which may increase the vulnerability of individuals to develop psychiatric disorders such as depression, and neurodegenerative disorders such as Alzheimer's Disease (AD). This is evident in the influence of stress on large-scale brain networks, including the resting state Default Mode Network (DMN), the effects of stress on neuronal circuitry and architecture, and the cellular and molecular adaptations to stress, which may render individuals with stress related psychiatric disorders more vulnerable to neurodegenerative disease later in life...
August 10, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28803765/response-of-methanotrophic-activity-to-extracellular-polymeric-substance-production-and-its-influencing-factors
#4
Ruo He, Ruo-Chan Ma, Xing-Zhi Yao, Xiao-Meng Wei
The accumulation of extracellular polymeric substance (EPS) is speculated to be related with the decrease of CH4 oxidation rate after a peak in long-term laboratory landfill covers and biofilters. However, few data have been reported about EPS production of methanotrophs and its feedback effects on methanotrophic activity. In this study, Methylosinus sporium was used asa model methanotroph to investigate EPS production and its influencing factors during CH4 oxidation. The results showed that methanotrophs could secret EPS into the habits during CH4 oxidation and had a negative feedback effect on CH4 oxidation...
August 10, 2017: Waste Management
https://www.readbyqxmd.com/read/28801592/dietary-arginine-affects-the-insulin-signaling-pathway-glucose-metabolism-and-lipogenesis-in-juvenile-blunt-snout-bream-megalobrama-amblycephala
#5
Hualiang Liang, Habte-Michael Habte-Tsion, Xianping Ge, Mingchun Ren, Jun Xie, Linghong Miao, Qunlan Zhou, Yan Lin, Wenjing Pan
This study evaluated the mechanisms governing insulin resistance, glucose metabolism and lipogenesis in juvenile fish fed with graded levels of dietary arginine. The results showed that, compared with the control group (0.87%), 2.31% dietary arginine level resulted in the upregulation of the relative gene expression of IRS-1, PI3K and Akt in the insulin signaling pathway, while 2.70% dietary arginine level led to inhibition of these genes. 1.62% dietary arginine level upregulated glycolysis by increasing GK mRNA level; 2...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28800597/confirmation-bias-in-human-reinforcement-learning-evidence-from-counterfactual-feedback-processing
#6
Stefano Palminteri, Germain Lefebvre, Emma J Kilford, Sarah-Jayne Blakemore
Previous studies suggest that factual learning, that is, learning from obtained outcomes, is biased, such that participants preferentially take into account positive, as compared to negative, prediction errors. However, whether or not the prediction error valence also affects counterfactual learning, that is, learning from forgone outcomes, is unknown. To address this question, we analysed the performance of two groups of participants on reinforcement learning tasks using a computational model that was adapted to test if prediction error valence influences learning...
August 11, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28798671/bodily-sensory-inputs-and-anomalous-bodily-experiences-in-complex-regional-pain-syndrome-evaluation-of-the-potential-effects-of-sound-feedback
#7
Ana Tajadura-Jiménez, Helen Cohen, Nadia Bianchi-Berthouze
Neuroscientific studies have shown that human's mental body representations are not fixed but are constantly updated through sensory feedback, including sound feedback. This suggests potential new therapeutic sensory approaches for patients experiencing body-perception disturbances (BPD). BPD can occur in association with chronic pain, for example in Complex Regional Pain Syndrome (CRPS). BPD often impacts on emotional, social, and motor functioning. Here we present the results from a proof-of-principle pilot study investigating the potential value of using sound feedback for altering BPD and its related emotional state and motor behavior in those with CRPS...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28780925/motivational-mechanisms-in-the-relation-between-job-characteristics-and-employee-functioning
#8
Anja H Olafsen, Hallgeir Halvari
This study investigates the job demands-resources (JD-R) model in relation to work motivation in a self-determination theory (SDT) perspective, with the purpose of developing a model where social-contextual factors are seen in relation to psychological needs in order to explain autonomous work motivation and, in turn, self-reported work performance and somatic symptom burden. SEM-analyses of cross-sectional survey data including 405 waiters/waitresses in Norway were conducted to evaluate the hypothesized model...
August 7, 2017: Spanish Journal of Psychology
https://www.readbyqxmd.com/read/28771842/challenges-in-interprofessional-collaboration-experiences-of-care-providers-and-policymakers-in-a-newly-set-up-dutch-assault-centre
#9
Elza Zijlstra, Sylvie Lo Fo Wong, Anne Teerling, Giel Hutschemaekers, Antoine Lagro-Janssen
BACKGROUND: Sexual and family violence are problems that affect many women and men, and the negative health consequences of violence are numerous. As adequate acute interprofessional care can prevent negative health consequences and improve forensic medical examination, a Centre for Sexual and Family Violence was set up. AIM: We aimed to improve our understanding of the challenges in interprofessional collaboration in a newly set-up centre for sexual and family violence...
August 3, 2017: Scandinavian Journal of Caring Sciences
https://www.readbyqxmd.com/read/28768444/a-swedish-version-of-the-consultation-and-relational-empathy-care-measure
#10
K Crosta Ahlforn, E Bojner Horwitz, W Osika
OBJECTIVE: A validated measure to gather patient feedback on physicians' empathy is not available in Swedish. The objective for this study was to examine the psychometric characteristics of a Swedish version of the Consultation and Relational Empathy (CARE) measure (widely used in English). DESIGN, SETTING AND PATIENTS: The CARE measure was translated into Swedish and tested on 554 unselected patients visiting physicians in two primary care clinics in northwestern Stockholm, Sweden...
August 3, 2017: Scandinavian Journal of Primary Health Care
https://www.readbyqxmd.com/read/28752549/choice-predicts-the-feedback-negativity
#11
Stuart McGill, Jude Buckley, Douglas Elliffe, Paul M Corballis
Choosing the appropriate response given the circumstance is integral to all aspects of human behavior. One way of elucidating the mechanisms of choice is to relate behavior to neural correlates. Electrophysiological evidence implicates the ERP feedback-negativity (FN) and the P300 as promising neural correlates of reward processing, an integral component of learning. However, prior research has not adequately addressed how the development of a preference to select one option over another (choice preference) relates to the FN and the P300...
July 28, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28749150/positive-and-negative-assessment-center-feedback-in-relation-to-development-self-efficacy-feedback-seeking-and-promotion
#12
Nikolaos Dimotakis, Deb Mitchell, Todd Maurer
In this field study we examined both positive and negative developmental feedback given in managerial assessment centers in relation to employees' self-efficacy for their ability to improve their relevant skills assessed in the centers, the extent to which they sought subsequent feedback from others at work, and the career outcome of being promoted to a higher level position within the organization. We found that feedback was related to self-efficacy for improvement which was in turn positively related to feedback seeking, which was positively linked to the career outcome of promotion (e...
July 27, 2017: Journal of Applied Psychology
https://www.readbyqxmd.com/read/28747295/motivate-a-pretreatment-web-based-program-to-improve-attendance-at-uk-outpatient-services-among-adults-with-eating-disorders
#13
Sarah Muir, Ciarán Newell, Jess Griffiths, Kathy Walker, Holly Hooper, Sarah Thomas, Peter W Thomas, Jon Arcelus, James Day, Katherine M Appleton
BACKGROUND: In the UK, eating disorders affect upward of 725,000 people per year, and early assessment and treatment are important for patient outcomes. Around a third of adult outpatients in the UK who are referred to specialist eating disorder services do not attend, which could be related to patient factors related to ambivalence, fear, and a lack of confidence about change. This lack of engagement has a negative impact on the quality of life of patients and has implications for service costs...
July 26, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28744204/differences-in-social-decision-making-between-proposers-and-responders-during-the-ultimatum-game-an-eeg-study
#14
Sibylle K Horat, Anne Prévot, Jonas Richiardi, François R Herrmann, Grégoire Favre, Marco C G Merlo, Pascal Missonnier
The Ultimatum Game (UG) is a typical paradigm to investigate social decision-making. Although the behavior of humans in this task is already well established, the underlying brain processes remain poorly understood. Previous investigations using event-related potentials (ERPs) revealed three major components related to cognitive processes in participants engaged in the responder condition, the early ERP component P2, the feedback-related negativity (FRN) and a late positive wave (late positive component, LPC)...
2017: Frontiers in Integrative Neuroscience
https://www.readbyqxmd.com/read/28742191/high-progesterone-levels-during-the-luteal-phase-related-to-the-use-of-an-aromatase-inhibitor-in-breast-cancer-patients
#15
C Alviggi, R Marci, R Vallone, A Conforti, F Di Rella, I Strina, S Picarelli, P De Rosa, M De Laurentiis, C Yding Andersen, G De Placido
OBJECTIVE: To evaluate the hormonal profile in three breast cancer patients who underwent controlled ovarian stimulation in the presence of the aromatase inhibitor letrozole. PATIENTS AND METHODS: In IVF University referral center, a case series of three breast cancer patients who underwent controlled ovarian stimulation (COS) with recombinant FSH and letrozole were investigated. Ovulation was induced with hCG (case No. 1) or with GnRH agonist (case No. 2-3). The primary outcome of our study was the detection of progesterone levels in the luteal phase...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28736927/pituitary-thyroid-axis-development-during-the-larval-juvenile-transition-in-the-pejerrey-odontesthes-bonariensis
#16
T Chalde, L A Miranda
The morphological development of the thyroid gland of pejerrey Odontesthes bonariensis during larval-juvenile transition was studied and related to whole-body concentrations of thyroxine (T4 ) and tri-iodothyronine (T3 ). A complementary (c)DNA fragment of the thyroid-stimulating hormone β-subunit (tshb) was sequenced and transcript levels quantified during this period. Follicles with eosinophilic and T4 -immunoreactive colloids were detected at hatching together with tshb transcript levels and whole-body concentrations of T4 and T3 hormones...
July 23, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28732737/microrna-181a-and-its-target-smad-7-as-potential-biomarkers-for-tracking-child-acute-lymphoblastic-leukemia
#17
Marwa Nabhan, Manal L Louka, Eman Khairy, Fathy Tash, Randa Ali-Labib, Safinaz El-Habashy
Acute lymphoblastic leukemia (ALL) is the most common pediatric hematologic tumor. MiR-181a was expected to have a role in the development of hematological malignancies; it might act as tumor suppressor or oncogene. Smad7 was selected as miR-181a target pair. It is a negative regulator for the TGF-β1 signaling pathway. In this study, relative expression levels of miR-181a by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR), both Smad 7 and TGF β1 proteins levels by enzyme linked immunosorbent assay (ELISA) were all measured in serum of 60 child, 30 with ALL and 30 age and sex matched healthy child as control group...
July 18, 2017: Gene
https://www.readbyqxmd.com/read/28729935/single-trial-eeg-informed-fmri-analysis-of-emotional-decision-problems-in-hot-executive-function
#18
Qian Guo, Tiantong Zhou, Wenjie Li, Li Dong, Suhong Wang, Ling Zou
BACKGROUND: Executive function refers to conscious control in psychological process which relates to thinking and action. Emotional decision is a part of hot executive function and contains emotion and logic elements. As a kind of important social adaptation ability, more and more attention has been paid in recent years. OBJECTIVE: Gambling task can be well performed in the study of emotional decision. As fMRI researches focused on gambling task show not completely consistent brain activation regions, this study adopted EEG-fMRI fusion technology to reveal brain neural activity related with feedback stimuli...
July 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28728018/unbelievable-neural-correlate-of-the-feedback-negativity-in-the-anterior-cingulate
#19
Bruno B Averbeck
The feedback- or error-related negativity (FN) has been extensively documented in frontal EEG recordings in human participants. In this issue of Neuron, Hyman et al. (2017) have documented a single-cell correlate of the FN in the ACC of rodents.
July 19, 2017: Neuron
https://www.readbyqxmd.com/read/28727754/dysregulation-of-endothelial-colony-forming-cell-function-by-a-negative-feedback-loop-of-circulating-mir-146a-and-146b-in-cardiovascular-disease-patients
#20
Ting-Yu Chang, Wei-Chi Tsai, Tse-Shun Huang, Shu-Han Su, Chih-Young Chang, Hsiu-Yen Ma, Chun-Hsien Wu, Chih-Yung Yang, Chi-Hung Lin, Po-Hsun Huang, Cheng-Chung Cheng, Shu-Meng Cheng, Hsei-Wei Wang
Functional impairment of endothelial colony-forming cells (ECFCs), a specific cell lineage of endothelial progenitor cells (EPCs) is highly associated with the severity of coronary artery disease (CAD), the most common type of cardiovascular disease (CVD). Emerging evidence show that circulating microRNAs (miRNAs) in CAD patients' body fluid hold a great potential as biomarkers. However, our knowledge of the role of circulating miRNA in regulating the function of ECFCs and the progression of CAD is still in its infancy...
2017: PloS One
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