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feedback-related negativity

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https://www.readbyqxmd.com/read/28650200/the-cortisol-c-reactive-protein-ratio-and-negative-affect-reactivity-in-depressed-adults
#1
Edward C Suarez, John S Sundy
OBJECTIVE: We evaluated the effect of the cortisol (CORT) to high sensitivity C-reactive protein (hsCRP) ratio on stress-induced negative affect (NA) reactivity and whether the association was moderated by depressive symptom severity and gender. The CORT/CRP ratio was used to evaluate the integrity of the negative feedback loop between the hypothalamic-pituitary-adrenal axis and inflammatory response system. METHOD: Basal CORT and hsCRP levels were measured in fasting blood samples from 198 medication-free and nonsmoking healthy men and women...
June 26, 2017: Health Psychology: Official Journal of the Division of Health Psychology, American Psychological Association
https://www.readbyqxmd.com/read/28647909/organic-matter-export-to-the-seafloor-in-the-baltic-sea-drivers-of-change-and-future-projections
#2
Tobias Tamelander, Kristian Spilling, Monica Winder
The impact of environmental change and anthropogenic stressors on coastal marine systems will strongly depend on changes in the magnitude and composition of organic matter exported from the water column to the seafloor. Knowledge of vertical export in the Baltic Sea is synthesised to illustrate how organic matter deposition will respond to climate warming, climate-related changes in freshwater runoff, and ocean acidification. Pelagic heterotrophic processes are suggested to become more important in a future warmer climate, with negative feedbacks to organic matter deposition to the seafloor...
June 24, 2017: Ambio
https://www.readbyqxmd.com/read/28634488/antiherding-in-financial-decision-increases-valuation-of-return-on-investment-an-event-related-potential-study
#3
Cuicui Wang, Jia Jin, João Paulo Vieito, Qingguo Ma
Using event-related potentials, this study investigated how financial herding or antiherding affected the valuation of subsequent outcomes. For each trial, subjects decided whether to buy the stock according to its net money flow information which could be used to reflect the strength of buying power or selling power of the stock. The return on investment (ROI) as feedback included the increase or decrease percentage after subjects' responses. Results showed that, compared with herding, antiherding induced larger discrepancies of FRN and P300 amplitude between positive ROI and negative ROI, indicating that individuals under antiherding condition had stronger motivation and paid more attention in the evaluation process of ROI...
2017: Computational Intelligence and Neuroscience
https://www.readbyqxmd.com/read/28634153/beyond-basic-feedback-in-mobile-brief-interventions-designing-sms-message-content-for-delivery-to-young-adults-during-risky-drinking-events
#4
Cassandra J C Wright, Paul M Dietze, Megan S C Lim
BACKGROUND: Brief interventions can reduce alcohol consumption in young people through screening and delivery of personally relevant feedback. Recently, Web and mobile platforms have been harnessed to increase the reach of brief interventions. Existing literature on mobile-based alcohol brief interventions indicates mixed use of theory in developing interventions. There is no research available to guide the development of SMS text messaging (short message service, SMS) interventions delivered during risky drinking events...
June 20, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28631968/improving-kindergarten-readiness-in-children-with-developmental-disabilities-changes-in-neural-correlates-of-response-monitoring
#5
Jennifer Martin McDermott, Katherine C Pears, Jacqueline Bruce, Hyoun K Kim, Leslie Roos, Karen L Yoerger, Philip A Fisher
Among children diagnosed with developmental delays, difficulties in self-regulation are prominent and have been linked to school readiness problems. The current study sought to examine the impact of the Kids in Transition to School (KITS) school readiness intervention program on self-regulation, with a specific focus on response monitoring skills, among children with developmental delays. Children (n = 20 in the KITS group and n = 21 in a services as usual group) were administered a flanker task during which event-related potential data were collected to examine group differences in response monitoring...
February 22, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28630025/the-clock-is-ticking-ageing-of-the-circadian-system-from-physiology-to-cell-cycle
#6
REVIEW
Eva Terzibasi-Tozzini, Antonio Martinez-Nicolas, Alejandro Lucas-Sánchez
The circadian system is the responsible to organise the internal temporal order in relation to the environment of every process of the organisms producing the circadian rhythms. These rhythms have a fixed phase relationship among them and with the environment in order to optimise the available energy and resources. From a cellular level, circadian rhythms are controlled by genetic positive and negative auto-regulated transcriptional and translational feedback loops, which generate 24hour rhythms in mRNA and protein levels of the clock components...
June 16, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28628628/transcriptional-mechanisms-associated-with-seed-dormancy-and-dormancy-loss-in-the-gibberellin-insensitive-sly1-2-mutant-of-arabidopsis-thaliana
#7
Sven K Nelson, Camille M Steber
While widespread transcriptome changes were previously observed with seed dormancy loss, this study specifically characterized transcriptional changes associated with the increased seed dormancy and dormancy loss of the gibberellin (GA) hormone-insensitive sleepy1-2 (sly1-2) mutant. The SLY1 gene encodes the F-box subunit of an SCF E3 ubiquitin ligase needed for GA-triggered proteolysis of DELLA repressors of seed germination. DELLA overaccumulation in sly1-2 seeds leads to increased dormancy that can be rescued without DELLA protein destruction either by overexpression of the GA receptor, GA-INSENSITIVE DWARF1b (GID1b-OE) (74% germination) or by extended dry after-ripening (11 months, 51% germination)...
2017: PloS One
https://www.readbyqxmd.com/read/28625476/feedback-loops-interlocked-at-competitive-binding-sites-amplify-and-facilitate-genetic-oscillations
#8
Koichiro Uriu, Hajime Tei
Positive and negative feedback loops are often present in regulatory networks for genetic oscillations. Relative time scales and integration of these feedback loops are key to robust oscillations in expression levels. Using examples from the circadian clock and synthetic genetic oscillators, we study positive and negative feedback loops interlocked at competitive binding sites. In the mammalian circadian clock, a key clock gene Bmal1 is regulated by the activator ROR and the repressor REV-ERB. Conversely, Bmal1 activates both of them, forming interlocked feedback loops...
June 15, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28611699/the-age-effects-on-the-cognitive-processes-of-intention-based-and-stimulus-based-actions-an-erp-study
#9
Ya-Nan Niu, Xinyi Zhu, Juan Li
The functional decline in action among older adults is caused not only by physical weakness but also by cognitive decline. In this study, we aimed to compare the cognitive effects of age between intention-based and stimulus-based action modes electrophysiologically. Because age-related declines in cognitive function might proceed distinctly according to specific action modes and processes, four specific cognitive processes, action-effect binding, stimulus-response linkage, action-effect feedback control, and effect-action retrieval, were investigated...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28608708/global-stability-of-infectious-disease-models-with-contact-rate-as-a-function-of-prevalence-index
#10
Cruz Vargas-De-Leon, Alberto d'Onofrio
In this paper, we consider a SEIR epidemiological model with information--related changes in contact patterns. One of the main features of the model is that it includes an information variable, a negative feedback on the behavior of susceptible subjects, and a function that describes the role played by the infectious size in the information dynamics. Here we focus in the case of delayed information. By using suitable assumptions, we analyze the global stability of the endemic equilibrium point and disease--free equilibrium point...
August 1, 2017: Mathematical Biosciences and Engineering: MBE
https://www.readbyqxmd.com/read/28608615/circular-linkages-between-soil-biodiversity-fertility-and-plant-productivity-are-limited-to-topsoil-at-the-continental-scale
#11
Manuel Delgado-Baquerizo, Jeff R Powell, Kelly Hamonts, Frank Reith, Pauline Mele, Mark V Brown, Paul G Dennis, Belinda C Ferrari, Anna Fitzgerald, Andrew Young, Brajesh K Singh, Andrew Bissett
The current theoretical framework suggests that tripartite positive feedback relationships between soil biodiversity, fertility and plant productivity are universal. However, empirical evidence for these relationships at the continental scale and across different soil depths is lacking. We investigate the continental-scale relationships between the diversity of microbial and invertebrate-based soil food webs, fertility and above-ground plant productivity at 289 sites and two soil depths, that is 0-10 and 20-30 cm, across Australia...
June 13, 2017: New Phytologist
https://www.readbyqxmd.com/read/28608591/intraspecific-genetic-diversity-modulates-plant-soil-feedback-and-nutrient-cycling
#12
Marina Semchenko, Sirgi Saar, Anu Lepik
Plant genetic diversity can affect ecosystem functioning by enhancing productivity, litter decomposition and resistance to natural enemies. However, the mechanisms underlying these effects remain poorly understood. We hypothesized that genetic diversity may influence ecosystem processes by eliciting functional plasticity among individuals encountering kin or genetically diverse neighbourhoods. We used soil conditioned by groups of closely related (siblings) and diverse genotypes of Deschampsia cespitosa - a species known to exhibit kin recognition via root exudation - to investigate the consequences of kin interactions for root litter decomposition and negative feedback between plants and soil biota...
June 13, 2017: New Phytologist
https://www.readbyqxmd.com/read/28603075/prognostic-significance-of-socs3-and-its-biological-function-in-colorectal-cancer
#13
Qinjun Chu, Dan Shen, Long He, Hongwei Wang, Chunlan Liu, Wei Zhang
Colorectal cancer (CRC) is a common malignant tumor, in which the inflammatory microenvironment plays an important role. STAT3 signaling pathway is regarded as the "bridge" between inflammation and cancer, and involved in the development of CRC. SOCS3 is a key negative feedback regulator of JAK/STAT signaling pathway. Studies about SOCS3 gene in CRC are rarely reported. The purpose of this study is to determine the expression of SOCS3 in CRC tissue and its correlation with the clinical pathological characteristics and prognosis of colorectal cancers...
June 8, 2017: Gene
https://www.readbyqxmd.com/read/28601965/event-related-potentials-reflect-impaired-temporal-interval-learning-following-haloperidol-administration
#14
Sarah E Forster, Patrick Zirnheld, Anantha Shekhar, Stuart R Steinhauer, Brian F O'Donnell, William P Hetrick
BACKGROUND: Signals carried by the mesencephalic dopamine system and conveyed to anterior cingulate cortex are critically implicated in probabilistic reward learning and performance monitoring. A common evaluative mechanism purportedly subserves both functions, giving rise to homologous medial frontal negativities in feedback- and response-locked event-related brain potentials (the feedback-related negativity (FRN) and the error-related negativity (ERN), respectively), reflecting dopamine-dependent prediction error signals to unexpectedly negative events...
June 10, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28598926/enhancing-feedback-on-professionalism-and-communication-skills-in-anesthesia-residency-programs
#15
John D Mitchell, Cindy Ku, Carol Ann B Diachun, Amy DiLorenzo, Daniel E Lee, Suzanne Karan, Vanessa Wong, Randall M Schell, Marek Brzezinski, Stephanie B Jones
BACKGROUND: Despite its importance, training faculty to provide feedback to residents remains challenging. We hypothesized that, overall, at 4 institutions, a faculty development program on providing feedback on professionalism and communication skills would lead to (1) an improvement in the quantity, quality, and utility of feedback and (2) an increase in feedback containing negative/constructive feedback and pertaining to professionalism/communication. As secondary analyses, we explored these outcomes at the individual institutions...
June 7, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28592831/genetic-variation-of-dopamine-and-serotonin-function-modulates-the-feedback-related-negativity-during-altruistic-punishment
#16
Sören Enge, Hendrik Mothes, Monika Fleischhauer, Andreas Reif, Alexander Strobel
Why do humans cooperate and often punish norm violations of others? In the present study, we sought to investigate the genetic bases of altruistic punishment (AP), which refers to the costly punishment of norm violations with potential benefit for other individuals. Recent evidence suggests that norm violations and unfairness are indexed by the feedback-related negativity (FRN), an anterior cingulate cortex (ACC) generated neural response to expectancy violations. Given evidence on the role of serotonin and dopamine in AP as well as in FRN-generation, we explored the impact of genetic variation of serotonin and dopamine function on FRN and AP behavior in response to unfair vs...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28588726/pathogenic-mechanism-of-mir-21-in-autoimmune-lymphoid-hyperplasia-syndrome
#17
Yonglong Yan, Xinna Deng, Xiaoran Ning, Fang Li, Jingjing Cao
miR-21 plays an important role in immune responses and inflammatory diseases, but the mechanism of action of miR-21 in autoimmune lymphoid hyperplasia syndrome still remains unclear. The aim of the present study was to assess the mechanism of miR-21 in autoimmune disease, particularly, the autoimmune lymphoid hyperplasia syndrome. The pathology and immunity-related phenotypes of miR-21 transgenic mice, and the lymphocyte subsets were analyzed. The related T cell subsets and germinal center B (GCB) cells generated at the germinal center were detected with flow cytometry...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28588532/immune-to-situation-the-self-serving-bias-in-unambiguous-contexts
#18
Xiaoyan Wang, Li Zheng, Lin Li, Yijie Zheng, Peng Sun, Fanzhi A Zhou, Xiuyan Guo
Traditionally, the self-serving bias has been investigated in ambiguous contexts in which participants work on tasks that measure novel abilities before making attributions without clear criteria for success or failure feedback. Prior studies have confirmed that the self-serving bias is pervasive in the general population, yet it varies significantly across situations involving ambiguous contexts. The present study features an unambiguous context encompassing interpersonal events that involved implicit causality (with the "self" as an actor or recipient), the inherent logic of which indicated attribution criteria...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28586469/dormancy-associated-mads-box-dam-and-abscisic-acid-pathway-regulate-pear-endodormancy-through-a-feedback-mechanism
#19
Pham Anh Tuan, Songling Bai, Takanori Saito, Akiko Ito, Takaya Moriguchi
In the pear 'Kosui' (Pyrus pyrifolia Nakai), dormancy-associated MADS-box (PpDAM1 = PpMADS13-1) gene has been reported to play an essential role in bud endodormancy. Here, we found that PpDAM1 upregulated expression of 9-cis-epoxycarotenoid dioxygenase (PpNCED3), which is a rate-limiting gene for abscisic acid (ABA) biosynthesis. Transient assays with dual luciferase reporter system (LUC assay) and electrophoretic mobility shift assay (EMSA) showed that PpDAM1 activated PpNCED3 expression by binding to the CArG motif in the PpNCED3 promoter...
June 6, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28580587/heme-oxygenase-1-directly-binds-stat3-to-control-the-generation-of-pathogenic-th17-cells-during-neutrophilic-airway-inflammation
#20
Xiaoliang Lin, Jiajia Lv, Jie Lv, Caixia Di, Yanjie Zhang, Tong Zhou, Junling Liu, Zhenwei Xia
BACKGROUND: Specific JAK/STAT pathways play a critical role in the functional differentiation of distinct Th subsets. Previously, we showed that HO-1, a stress-inducible protein, inhibits Th17 cell differentiation and alleviates neutrophilic airway inflammation, but the responsible molecular basis remains unclear. METHODS: We employed Th17-skewing differentiation and NEA mouse models to study the role of HO-1 regulating IL-6-STAT3-RORγt/SOCS3 signaling pathway to control Th17 cell-mediated neutrophilic airway inflammation...
June 5, 2017: Allergy
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