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1.
Scand J Public Health ; : 14034948231195388, 2023 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-37646484

RESUMO

AIMS: Because media portrayal reflects and shapes public opinion and health policy, investigating news coverage of public health issues is highly relevant for public health research and practice. Addressing a topical issue, this study investigated how newspaper coverage framed COVID-19 vaccines in Austria and German-speaking Switzerland and how it developed over time. METHODS: A quantitative newspaper content analysis of six newspapers from Austria and German-speaking Switzerland published between January 1 and 31, 2022 was conducted. Frames were identified for each country separately through hierarchical cluster analysis (Ward's method) based on frame elements. RESULTS: Four frames were identified in both countries: (1) Evaluating new vaccines, (2) Discussing mandates, (3) Promoting vaccination, (4) Mentioning vaccines. In Frames 1 (Switzerland 86.4%, Austria 93.3%) and 3 (Switzerland 92.7%, Austria 98.9%), most articles included vaccine-endorsing statements, with Swiss coverage including additional negative statements more often than Austrian coverage (43.2%/44.6% vs 4.0%/3.3%). Frame 2 was closely linked to vaccine skepticism only in Austria and contained more evaluative statements in Austrian newspapers (25.4% endorsing, 35.4% rejecting; in Switzerland 14.5%/18.1%). The Austrian tabloid Kronen Zeitung published most articles (497/1091, 45.6%). CONCLUSIONS: The commercialized and comparatively high share of tabloid news coverage in Austria may have contributed to oversimplified and polarizing COVID-19 vaccine debates in this context. Insufficiently balanced and adequate information may contribute to a loss of public trust in vaccination and may therefore affect vaccination uptake. Authorities and public health professionals should consider this effect when designing information campaigns.

2.
Biosocieties ; : 1-26, 2023 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-37359140

RESUMO

Drawing upon 152 in-depth qualitative interviews with residents in Austria carried out in the first year of the pandemic, this article discusses how people's experiences with COVID-19 policies reflect and reshape state-citizen relations. Coinciding with a significant government crisis, the first year of COVID-19 in Austria saw pandemic measures justified with reference to a biological, often medical understanding of health that framed disease prevention in terms of transmission reduction, often with reference to metrics such as hospitalisation rates, etc. Instead of using this biomedical frame, our interviewees, however, drew attention to biopsychosocial dimensions of the crisis and problematised the entanglements between economy and health. We call this the emergence of a biosocial notion of citizenship that is attentive to psychological, social and economic dimensions of health. Insights into the biosocial nature of pandemic citizenship open a window of opportunity for addressing long-standing social injustices.

3.
Z Med Phys ; 2023 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-37150727

RESUMO

PURPOSE: To describe performance measurements, adaptations and time stability over 20 months of a diagnostic MR scanner for integration into MR-guided photon and particle radiotherapy. MATERIAL AND METHODS: For realization of MR-guided photon and particle therapy (MRgRT/MRgPT), a 1.5 T MR scanner was installed at the Heidelberg Ion Beam Therapy Center. To integrate MRI into the treatment process, a flat tabletop and dedicated coil holders for flex coils were used, which prevent deformation of the patient external contour and allow for the use of immobilization tools for reproducible positioning. The signal-to-noise ratio (SNR) was compared for the diagnostic and therapy-specific setup using the flat couch top and flexible coils for the a) head & neck and b) abdominal region as well as for different bandwidths and clinical pulse sequences. Additionally, a quality assurance (QA) protocol with monthly measurements of the ACR phantom and measurement of geometric distortions for a large field-of-view (FOV) was implemented to assess the imaging quality parameters of the device over the course of 20 months. RESULTS: The SNR measurements showed a decreased SNR for the RT-specific as compared to the diagnostic setup of (a) 26% to 34% and (b) 11% to 33%. No significant bandwidth dependency for this ratio was found. The longitudinal assessment of the image quality parameters with the ACR and distortion phantom confirmed the long-term stability of the MRI device. CONCLUSION: A diagnostic MRI was commissioned for use in MR-guided particle therapy. Using a radiotherapy specific setup, a high geometric accuracy and signal homogeneity was obtained after some adaptions and the measured parameters were shown to be stable over a period of 20 months.

4.
Vaccine ; 41(12): 2084-2092, 2023 03 17.
Artigo em Inglês | MEDLINE | ID: mdl-36813665

RESUMO

The uptake ofCOVID-19 vaccines has varied considerably across European countries. This study investigates people's decision-making process regarding vaccination by analyzing qualitative interviews (n = 214) with residents from five European countries: Austria, Germany, Italy, Portugal, and Switzerland. We identify three factors that shape vaccination decision-making: individual experiences and pre-existing attitudes towards vaccination, social environment, and socio-political context. Based on this analysis, we present a typology of decision-making regarding COVID-19 vaccines, where some types present stable stances towards vaccines and others change over time. Trust in government and relevant stakeholders, broader social factors, and people's direct social environment were particularly relevant to these dynamics. We conclude that vaccination campaigns should be considered long-term projects (also outside of pandemics) in need of regular adjustment, communication and fine-tuning to ensure public trust. This is particularly pertinent for booster vaccinations, such as COVID-19 or influenza.


Assuntos
COVID-19 , Vacinas contra Influenza , Vacinas , Humanos , Vacinas contra COVID-19 , COVID-19/prevenção & controle , Vacinação , Pesquisa Qualitativa , Europa (Continente)
5.
Vaccine ; 40(51): 7353-7359, 2022 12 05.
Artigo em Inglês | MEDLINE | ID: mdl-36396514

RESUMO

A workshop on mandatory vaccination was pitched to the World Public Health Congress in 2019 and the resultant special issue was pitched to Vaccine in 2020. During this project, the COVID-19 pandemic pushed vaccine policy to the forefront of global public health policy, and the imposition of vaccine mandates prompted a new wave of scholarship in the field. This introductory article employs the heuristic of Lasswell's (1956) policy cycle to synthesise the findings of the articles in the special issue. It considers the temporal lifetime of mandates and highlights findings regarding: the emergence of mandates as a policy option, public support and policy instrument design, what matters in the implementation of mandates, and what we can learn from evaluating them. The second half of the paper categorizes the included papers in terms of what aspects of mandates they study and the methods they employ to do so, in order to formulate a guide for future researchers of vaccine mandates. Scholars study either speculative or existing mandates - research can address several stages of the policy cycle or just one of them, ranging from attitudinal research to implementation studies and impact studies. Historical and contextual studies that take deep dives into a particular mandate are a much needed resource for studying emerging mandates, too, and scoping and framework- building work will undoubtedly be valuable in understanding and appreciating the wealth of knowledge production in this growing field. This special issue can serve as a roadmap for a consolidation of this interdisciplinary research agenda, and provide a helpful resource for decisionmakers at this historical juncture.


Assuntos
COVID-19 , Vacinas , Humanos , Pandemias , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Política Pública
6.
SSM Qual Res Health ; 2: 100158, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36092769

RESUMO

The sudden and dramatic advent of the COVID-19 pandemic led to urgent demands for timely, relevant, yet rigorous research. This paper discusses the origin, design, and execution of the SolPan research commons, a large-scale, international, comparative, qualitative research project that sought to respond to the need for knowledge among researchers and policymakers in times of crisis. The form of organization as a research commons is characterized by an underlying solidaristic attitude of its members and its intrinsic organizational features in which research data and knowledge in the study is shared and jointly owned. As such, the project is peer-governed, rooted in (idealist) social values of academia, and aims at providing tools and benefits for its members. In this paper, we discuss challenges and solutions for qualitative studies that seek to operate as research commons.

7.
Radiat Oncol ; 17(1): 102, 2022 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-35614486

RESUMO

BACKGROUND: Stereotactic Body Radiotherapy (SBRT) is a standard treatment for inoperable primary and secondary lung tumors. In case of ultracentral tumor location, defined as tumor contact with vulnerable mediastinal structures such as the proximal bronchial tree (PBT) or esophagus, SBRT is associated with an increased risk for severe complications. Magnetic resonance (MR)-guided SBRT can mitigate this risk based on gated dose delivery and daily plan adaptation. The MAGELLAN trial aims to find the maximum tolerated dose (MTD) of MR-guided SBRT of ultracentral lung tumors (ULT). PATIENTS AND METHODS: MAGELLAN is a prospective phase I dose escalation trial. A maximum of 38 patients with primary and secondary ULT with a tumor size ≤ 5 cm will be enrolled. Ultracentral location is defined as an overlap of the planning target volume (PTV) with the PBT or esophagus. Patients are treated at a 0.35 Tesla MR-linac (MRIdian® Linac, ViewRay Inc. ) employing a gating strategy and daily plan adaptation. Dose escalation starts at 10 × 5.5 Gy (biologically effective dose BED3/10: 155.83 Gy/85.25 Gy), may proceed up to 10 × 6.5 Gy (BED3/10: 205.83 Gy/107.25 Gy) and is guided by a customized time-to-event continual reassessment method (TITE CRM) with backup element, which alternately assigns patients to dose escalation and backup cohorts. DISCUSSION: The results of the MAGELLAN trial will guide further research and clinical implementation of MR-guided SBRT as ablative treatment of ULT. Moreover, the combination of MR-guided radiotherapy with TITE-CRM including a backup element may serve as blueprint for future radiation dose escalation studies in critical locations. TRIAL REGISTRATION: Registered at ClinicalTrials.gov: NCT04925583 on 14th June 2021.


Assuntos
Neoplasias Pulmonares , Radiocirurgia , Radioterapia Guiada por Imagem , Humanos , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/radioterapia , Neoplasias Pulmonares/cirurgia , Espectroscopia de Ressonância Magnética , Estudos Prospectivos , Radiocirurgia/métodos , Dosagem Radioterapêutica , Planejamento da Radioterapia Assistida por Computador , Radioterapia Guiada por Imagem/métodos
8.
SSM Qual Res Health ; 2: 100035, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35013736

RESUMO

Vaccine uptake is essential to managing the ongoing COVID-19 pandemic, and vaccine hesitancy is a persistent concern. At the same time, both decision-makers and the general population have high hopes for COVID-19 vaccination. Drawing from qualitative interview data collected in October 2020 as part of the pan-European SolPan study, this study explores early and anticipatory expectations, hopes and fears regarding COVID-19 vaccination across seven European countries. We find that stances towards COVID-19 vaccines were shaped by personal lived experiences, but participants also aligned personal and communal interests in their considerations. Trust, particularly in expert institutions, was an important prerequisite for vaccine acceptance, but participants also expressed doubts about the rapid vaccine development process. Our findings emphasise the need to move beyond the study of factors driving vaccine hesitancy, and instead to focus on how people personally perceive vaccination in their particular social and political context.

9.
Soc Cogn Affect Neurosci ; 17(4): 351-366, 2022 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-34545389

RESUMO

The ability to understand mental states of others is referred to as mentalizing and enabled by our Theory of Mind. This social skill relies on brain regions comprising the mentalizing network as robustly observed in adults but also in a growing number of developmental studies. We summarized and compared neuroimaging evidence in children/adolescents and adults during mentalizing using coordinate-based activation likelihood estimation meta-analyses to inform about brain regions consistently or differentially engaged across age categories. Adults (N = 5286) recruited medial prefrontal and middle/inferior frontal cortices, precuneus, temporoparietal junction and middle temporal gyri during mentalizing, which were functionally connected to bilateral inferior/superior parietal lobule and thalamus/striatum. Conjunction and contrast analyses revealed that children and adolescents (N = 479) recruit similar but fewer regions within core mentalizing regions. Subgroup analyses revealed an early continuous engagement of middle medial prefrontal cortex, precuneus and right temporoparietal junction in younger children (8-11 years) and adolescents (12-18 years). Adolescents additionally recruited the left temporoparietal junction and middle/inferior temporal cortex. Overall, the observed engagement of the medial prefrontal cortex, precuneus and right temporoparietal junction during mentalizing across all ages reflects an early specialization of some key regions of the social brain.


Assuntos
Mentalização , Teoria da Mente , Adolescente , Adulto , Encéfalo/diagnóstico por imagem , Encéfalo/fisiologia , Mapeamento Encefálico , Criança , Humanos , Imageamento por Ressonância Magnética , Teoria da Mente/fisiologia
10.
Vaccines (Basel) ; 9(12)2021 Dec 17.
Artigo em Inglês | MEDLINE | ID: mdl-34960241

RESUMO

In this study, we explore the recent setup of a digital vaccination record in Austria. Working from a social-scientific perspective, we find that the introduction of the electronic vaccination pass was substantially accelerated by the COVID-19 pandemic. Our interviews with key stakeholders (n = 16) indicated that three main factors drove this acceleration. The pandemic (1) sidelined historical conflicts regarding data ownership and invoked a shared sense of the value of data, (2) accentuated the need for enhanced administrative efficiency in an institutionally fragmented system, and (3) helped invoke the national vaccination registry as an indispensable infrastructure for public health governance with the potential to innovate its healthcare system in the long term.

11.
Sci Rep ; 11(1): 22929, 2021 11 25.
Artigo em Inglês | MEDLINE | ID: mdl-34824311

RESUMO

Pain habituation is associated with a decrease of activation in brain areas related to pain perception. However, little is known about the specificity of these decreases to pain, as habituation has also been described for other responses like spinal reflexes and other sensory responses. Thus, it might be hypothesized that previously reported reductions in activation are not specifically related to pain habituation. For this reason, we performed a 3 T fMRI study using either painful or non-painful electrical stimulation via an electrode attached to the back of the left hand. Contrasting painful vs. non-painful stimulation revealed significant activation clusters in regions well-known to be related to pain processing, such as bilateral anterior and posterior insula, primary/secondary sensory cortices (S1/S2) and anterior midcingulate cortex (aMCC). Importantly, our results show distinct habituation patterns for painful (in aMCC) and non-painful (contralateral claustrum) stimulation, while similar habituation for both types of stimulation was identified in bilateral inferior frontal gyrus (IFG) and contralateral S2. Our findings thus distinguish a general habituation in somatosensory processing (S2) and reduced attention (IFG) from specific pain and non-pain related habituation effects where pain-specific habituation effects within the aMCC highlight a change in affective pain perception.


Assuntos
Habituação Psicofisiológica , Nociceptividade , Dor Nociceptiva/fisiopatologia , Limiar da Dor , Córtex Somatossensorial/fisiopatologia , Adulto , Mapeamento Encefálico , Estimulação Elétrica , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Dor Nociceptiva/diagnóstico por imagem , Dor Nociceptiva/psicologia , Córtex Somatossensorial/diagnóstico por imagem , Adulto Jovem
12.
BMC Public Health ; 21(1): 1671, 2021 09 14.
Artigo em Inglês | MEDLINE | ID: mdl-34521378

RESUMO

BACKGROUND: Healthcare workers are considered key stakeholders in efforts to address vaccine hesitancy. Midwives' influence in advising expectant parents on early-childhood vaccinations is unquestioned, yet they remain an understudied group. The literature on midwives' attitudes towards vaccinations is also inconclusive. We therefore conducted an explorative qualitative study on midwives' vaccine-hesitant attitudes towards MMR (measles-mumps-rubella) vaccinations in Austria. METHODS: We conducted 12 in-depth interviews on their knowledge, concerns, and beliefs with midwives who self-identified as hesitant or resistant towards early-childhood MMR vaccinations. We analyzed the data using a grounded theory approach to distill common themes and meanings. RESULTS: Healthcare workers' stewardship to address vaccine hesitancy is commonly framed in terms of the "information deficit model": disseminate the right information and remedy publics' information deficits. Our findings suggest that this approach is too simplistic: Midwives' professional self-understanding, their notions of "good care" and "good parenthood" inflect how they engage with vaccine information and how they address it to their clients. Midwives' model of care prioritized good counseling rather than sharing scientific information in a "right the wrong"-manner. They saw themselves as critical consumers of that information and as promoting "empowered patients" who were free, and affluent enough, to make their own choices about vaccinations. In so doing, they also often promoted traditional notions of motherhood. CONCLUSIONS: Research shows that, for parents, vaccine decision-making builds on trust and dialogue with healthcare professionals and is more than a technical issue. In order to foster these interactions, understanding healthcare professionals' means of engaging with information is key to understanding how they engage with their constituents. Healthcare workers are more than neutral resources; their daily praxis influenced by their professional standing in the healthcare system. Similarly, healthcare professionals' views on vaccinations cannot be remedied with more information either. Building better and more diverse curricula for different groups of healthcare workers must attend to their respective roles, ethics of care, and professional beliefs. Taken together, better models for addressing vaccine hesitancy can only be developed by espousing a multi-faceted view of decision-making processes and interactions of healthcare workers with constituents.


Assuntos
Tocologia , Vacinas , Áustria , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Gravidez , Pesquisa Qualitativa , Vacinação
13.
Front Public Health ; 9: 671896, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34295869

RESUMO

Background: Vaccination is considered to be a key public health intervention to end the COVID-19 pandemic. Yet, the success of the intervention is contingent on attitudes toward vaccination and the design of vaccination policies. Methods: We conduct cross-sectional analyses of policy-relevant attitudes toward COVID-19 vaccination using survey data of a representative sample of Austrian residents collected by the Austrian Corona Panel Project (ACPP). As outcomes, we examine the individual readiness to get vaccinated, the support for compulsory vaccinations, and the preference for making the vaccine available free of charge. The independent variables include demographics, objective and perceived health risks, and social and political factors. Results: Although there is broad public support for making the vaccine available free of charge, vaccine hesitancy and the opposition to a vaccine mandate are widespread. The protective function of the vaccine for the individual only motivates limited support for vaccinations. Opposition to COVID-19 vaccination also stems from a lack of sense of community and an ongoing politicization of the issue through conspiracy theories and party politics. Conclusion: We propose that overcoming the inherent free-rider problem of achieving sufficiently high vaccination rates poses a potential dilemma for policymakers: Given the politicized nature of the issue, they may find themselves having to choose between making vaccinations compulsory at political costs and a lingering pandemic at high costs for public health and the economy. We propose that promoting a sense of community and addressing potential practical constraints will be key in designing an effective COVID-19 vaccination policy.


Assuntos
COVID-19 , Pandemias , Atitude , Áustria , Vacinas contra COVID-19 , Estudos Transversais , Demografia , Humanos , Políticas , Política , SARS-CoV-2 , Vacinação
14.
Int J Psychophysiol ; 162: 69-78, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33556468

RESUMO

The present review is the result of a one-day workshop on open science, held at the Annual Meeting of the Society for Psychophysiological Research in Washington, DC, September 2019. The contributors represent psychophysiological researchers at different career stages and from a wide spectrum of institutions. The state of open science in psychophysiology is discussed from different perspectives, highlighting key challenges, potential benefits, and emerging solutions that are intended to facilitate open science practices. Three domains are emphasized: data sharing, preregistration, and multi-site studies. In the context of these broader domains, we present potential implementations of specific open science procedures such as data format harmonization, power analysis, data, presentation code and analysis pipeline sharing, suitable for psychophysiological research. Practical steps are discussed that may be taken to facilitate the adoption of open science practices in psychophysiology. These steps include (1) promoting broad and accessible training in the skills needed to implement open science practices, such as collaborative research and computational reproducibility initiatives, (2) establishing mechanisms that provide practical assistance in sharing of processing pipelines, presentation code, and data in an efficient way, and (3) improving the incentive structure for open science approaches. Throughout the manuscript, we provide references and links to available resources for those interested in adopting open science practices in their research.


Assuntos
Psicofisiologia , Humanos , Reprodutibilidade dos Testes
15.
Front Hum Neurosci ; 14: 157, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32477082

RESUMO

The present research was designed to test whether the subjective experience of more effort related to more reward valuation as measured by a neural response. This prediction was derived from the theory of cognitive dissonance and its effort justification paradigm. Young adult participants (n = 82) engaged in multiple trails of a low or high effort task that resulted in a loss or reward on each trial. Neural responses to the reward (loss) cue were measured using EEG so that the event-related potential known as the Reward Positivity (RewP) could be assessed. Results revealed no significant differences between low and high effort conditions on the RewP. However, within the high effort condition, a more subjective experience of effort was associated with a larger RewP. This research extends past research on the effort justification paradigm of cognitive dissonance theory by suggesting that effort justification is associated with an implicit measure of reward valuation. It, therefore, challenges recent perspectives on dissonance processes that posit that these evaluative changes should only occur on explicit but not implicit measures.

16.
Biol Psychol ; 154: 107910, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32473260

RESUMO

Past psychological theory and research suggest two opposing relationships between effort and reward valuation. Cognitive dissonance theory and research suggest that increased effort is associated with increased reward valuation, whereas theory and research on effort discounting suggest that increased effort is associated with decreased reward valuation. The present study was designed to test these two opposing perspectives, by examining a potential moderator of the relationship between effort and reward valuation - the belief that the effort was necessary to obtain the reward. Results (n = 44) suggested that increased perceptions of effort following a task were associated with larger neural responses to rewards (as assessed by the event-related potential referred to as the reward positivity) when individuals believed that their effort led to the reward but not when they believed that their effort did not lead to the reward. Discussion considers the implications of these results.


Assuntos
Teoria Psicológica , Recompensa , Tomada de Decisões , Potenciais Evocados , Feminino , Humanos , Masculino , Adulto Jovem
17.
Neuroimage ; 215: 116857, 2020 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-32304885

RESUMO

Feedback signaling the success or failure of actions is readily exploited to implement goal-directed behavior. Two event-related brain potentials (ERPs) have been identified as reliable markers of evaluative feedback processing: the Feedback-Related Negativity (FRN) and the P3. Recent ERP studies have shown a substantial reduction of these components when the feedback's goal relevance (in terms of goal informativeness) was decreased. However, it remains unclear whether this lowering of evaluative feedback processing at the FRN and P3 levels (i) reflects a common regulation process operating across them or (ii) indirectly and mostly depends on valence processing. To address these questions, 44 participants performed a time estimation task wherein the perceived goal relevance of the feedback following each decision was manipulated via instructions in different blocks. We recorded 64-channel EEG and collected subjective ratings of feedback valence and relevance, separately for goal-relevant and irrelevant conditions. ERP results showed a substantial reduction of the FRN and P3 components for irrelevant than relevant feedback, despite the balanced task relevance between them. Moreover, a Principal Component Analysis (PCA) showed that these two successive ERP effects had dissociable spatiotemporal properties. Crucially, a multivariate multiple regression analysis revealed that goal relevance per se, but not valence, was the unique significant predictor of the amplitude reduction of the FRN and P3 when the feedback was goal irrelevant. Our results suggest that although these ERP components exhibit non-overlapping spatiotemporal properties and performance monitoring effects, they can both be modulated by a common, valence-unspecific process related to goal relevance.


Assuntos
Antecipação Psicológica/fisiologia , Biorretroalimentação Psicológica/fisiologia , Encéfalo/fisiologia , Potenciais Evocados/fisiologia , Objetivos , Motivação/fisiologia , Adolescente , Adulto , Eletroencefalografia/métodos , Feminino , Humanos , Masculino , Estimulação Luminosa/métodos , Adulto Jovem
18.
J Clin Med ; 9(3)2020 Mar 24.
Artigo em Inglês | MEDLINE | ID: mdl-32213894

RESUMO

Background: Chronic kidney disease (CKD) and cardiovascular diseases (CVD) often occur concomitantly, and CKD is a major risk factor for cardiovascular mortality. Since some of the most commonly used biomarkers in CVD are permanently elevated in patients with CKD, novel biomarkers are warranted for clinical practice. Methods: Plasma concentrations of five cardiovascular biomarkers (soluble suppression of tumorigenicity (sST2), growth differentiation factor 15 (GDF-15), heart-type fatty acid-binding protein (H-FABP), insulin-like growth factor-binding protein 2 (IGF-BP2), and soluble urokinase plasminogen activator receptor) were analyzed by means of enzyme-linked immunosorbent assay (ELISA) in 219 patients with CKD enrolled in the German Chronic Kidney Disease (GCKD) study. Results: Except for sST2, all of the investigated biomarkers were significantly elevated in patients with CKD (2.0- to 4.4-fold increase in advanced CKD (estimated glomerular filtration rate (eGFR) < 30 mL/min/1.73 m² body surface area (BSA)) and showed a significant inverse correlation with eGFR. Moreover, all but H-FABP and sST2 were additionally elevated in patients with micro- and macro-albuminuria. Conclusions: Based on our findings, sST2 appears to be the biomarker whose diagnostic performance is least affected by decreased renal function, thus suggesting potential viability in the management of patients with CVD and concomitant CKD. The predictive potential of sST2 remains to be proven in endpoint studies.

19.
Cogn Affect Behav Neurosci ; 20(2): 236-249, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32043206

RESUMO

In a previous study (Paul & Pourtois, 2017), we found that positive mood substantially influenced the neural processing of reward, mostly by altering expectations and creating an optimistic bias. Under positive mood, the Reward Positivity (RewP) component and fronto-medial theta activity (FMθ) in response to monetary feedback were both changed compared with neutral mood. Nevertheless, whether positive valence per se or motivational intensity drove these neurophysiological effects remained unclear. To address this question, we combined a mindset manipulation with an imagery procedure to create and maintain three different affective states using a between-subjects design: a neutral mood, and positive mood with either high or low motivational intensity. After mood induction, 161 participants performed a simple gambling task while 64-channel EEG was recorded. FMθ activity results showed that irrespective of motivational intensity, positive compared with neutral mood altered reward expectancy. By comparison, RewP was not affected by positive mood nor motivational intensity. These results suggest that positive mood, rather than motivational intensity, is likely driving the change in reward expectation during gambling, which could reflect the presence of an optimistic bias. Moreover, at the methodological level, they confirm that the RewP ERP component and FMθ activity can capture dissociable effects during reward processing.


Assuntos
Afeto/fisiologia , Retroalimentação Psicológica/fisiologia , Motivação/fisiologia , Recompensa , Adulto , Antecipação Psicológica/fisiologia , Encéfalo/fisiologia , Eletroencefalografia/métodos , Potenciais Evocados/fisiologia , Feminino , Jogo de Azar , Humanos , Masculino , Adulto Jovem
20.
Psychophysiology ; 57(2): e13481, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31578739

RESUMO

Reward processing is influenced by reward magnitude, as previous EEG studies showed changes in amplitude of the feedback-related negativity (FRN) and reward positivity (RewP), or power of fronto-medial theta (FMθ). However, it remains unclear whether these changes are driven by increased reward sensitivity, altered reward predictions, enhanced cognitive control, or a combination of these effects. To address this question, we asked 36 participants to perform a simple gambling task where feedback valence (reward vs. no-reward), its magnitude (small vs. large reward), and expectancy (expected vs. unexpected) were manipulated in a factorial design, while 64-channel EEG was recorded concurrently. We performed standard ERP analyses (FRN and RewP) as well as time-frequency decompositions (FMθ) of feedback-locked EEG data. Subjective reports showed that large rewards were more liked and expected than small ones. At the EEG level, increasing magnitude led to a larger RewP irrespective of expectancy, whereas the FRN was not influenced by this manipulation. In comparison, FMθ power was overall increased when reward magnitude was large, except if it was unexpected. These results show dissociable effects of reward magnitude on the RewP and FMθ power. Further, they suggest, that although large reward magnitude boosts reward processing (RewP), it can nonetheless undermine the need for enhanced cognitive control (FMθ) in case reward is unexpected. We discuss these new results in terms of optimistic bias or positive mood resulting from an increased reward magnitude.


Assuntos
Antecipação Psicológica/fisiologia , Potenciais Evocados/fisiologia , Função Executiva/fisiologia , Retroalimentação Psicológica/fisiologia , Motivação/fisiologia , Córtex Pré-Frontal/fisiologia , Recompensa , Ritmo Teta/fisiologia , Adulto , Feminino , Humanos , Masculino , Adulto Jovem
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