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1.
PLoS One ; 19(8): e0306689, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39088485

RESUMEN

This study investigates whether a not informative, irrelevant emotional reaction of disgust interferes with decision-making under uncertainty. We manipulate the Iowa Gambling Task (IGT) by associating a disgust-eliciting image with selections from Disadvantageous/Bad decks (Congruent condition) or Advantageous/Good decks (Incongruent condition). A Control condition without manipulations is also included. Results indicate an increased probability of selecting from a Good deck as the task unfolds in all conditions. However, this effect is modulated by the experimental manipulation. Specifically, we detect a detrimental effect (i.e., a significant decrease in the intercept) of the disgust-eliciting image in Incongruent condition (vs. Control), but this effect is limited to the early stages of the task (i.e., first twenty trials). No differences in performance trends are detected between Congruent and Control conditions. Anticipatory Skin Conductance Response, heart rate, and pupil dilation are also assessed as indexes of anticipatory autonomic activation following the Somatic Marker Hypothesis, but no effects are shown for the first two indexes in any of the conditions. Only a decreasing trend is detected for pupil dilation as the task unfolds in Control and Incongruent conditions. Results are discussed in line with the "risk as feelings" framework, the Somatic Marker Hypothesis, and IGT literature.


Asunto(s)
Toma de Decisiones , Asco , Juego de Azar , Humanos , Toma de Decisiones/fisiología , Masculino , Incertidumbre , Femenino , Juego de Azar/psicología , Adulto , Adulto Joven , Respuesta Galvánica de la Piel/fisiología , Frecuencia Cardíaca/fisiología , Emociones/fisiología
2.
Waste Manag ; 163: 22-33, 2023 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-36989827

RESUMEN

Efficient Waste Management Systems (WMS) depend on citizens' willingness to sort waste and to cooperate for its improved provision. Thus, it is essential to understand what attributes individuals value the most and what drives WMS preference heterogeneity. In this paper, we investigate how individuals evaluate WMS attributes (e.g., the number of waste sorting categories, the introduction of textile sorting, and the frequency of collection per week) and how the local contexts, socioeconomics, and environmental values shape their preferences. For this purpose, we conducted a discrete choice experiment on a sample representative of the Italian population interviewed through an online panel survey. We collected information on individual's preferences for WMS attributes, environmental awareness, and socioeconomic characteristics. We analyzed the data using hybrid mixed choice models, which allowed us to integrate environmental awareness values into willingness to pay estimations. We found that individuals are willing to pay for waste sorting, even if this implies more effort on their part and increased storage space. In addition, we found that the extent to which individuals support WMS improvements strongly depends on their environmental values, experiences (which are shaped by their local context), and socioeconomic factors. Our results suggest that to increase recycling rates and citizen satisfaction, there is a need for context-specific WMS designs that acknowledge the observed heterogeneity of preferences.


Asunto(s)
Composición Familiar , Administración de Residuos , Humanos , Factores Socioeconómicos , Encuestas y Cuestionarios
3.
Front Physiol ; 13: 960773, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36105278

RESUMEN

Mild degrees of hypoxia are known to exert a detrimental effect on cognitive functions. In a lab study, we assessed the effect of mild hypoxia on risk-taking behavior. Participants (N = 25) were presented with pairs of bets of equal expected monetary value, one having a higher probability of winning/losing a lower payoff (safer bet) and one having a lower probability of winning/losing a higher payoff (riskier bet). We systematically varied the ratio of the probabilities (and corresponding payoffs) of the two bets and examined how this affected participants' choice between them. Following a familiarization session, participants performed the task twice: once in a normoxic environment (20.9% oxygen concentration) and once in a mildly hypoxic environment (14.1% oxygen concentration). Participants were not told and could not guess which environment they were in. We found a higher preference for the riskier bet in the mild hypoxic than normoxic environment but only in the loss domain. Furthermore, as the probability ratio increased, mild hypoxia increased the preference for the riskier bet in the domain of losses but decreased it for gains. The present findings support that mild hypoxia promotes riskier choices in the loss domain and provide new insights into the impact of mild hypoxia in moderating the effect of probability ratio on risky choices.

4.
Acta Psychol (Amst) ; 226: 103562, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35339923

RESUMEN

The cognitive reflection test (CRT) measures the ability to suppress an intuitive, but incorrect, answer that easily comes to mind. The relationship between the CRT and different cognitive biases has been widely studied. However, whether cognitive reflection is related to attentional control is less well studied. The aim of this paper is to investigate whether the inhibitory component of the CRT, measured by the number of non-intuitive answers of the CRT (Inhibitory Control Score), is related to the control of visual attention in visual tasks that involve overriding a bias in what to attend: an anti-saccade task and a visual search task. To test this possibility, we analyzed whether the CRT-Inhibitory Control Score (CRT-ICS) predicted attention allocation in each task. We compared the relationship between the CRT-ICS to two other potential predictors of attentional control: numeracy and visual working memory (VWM). Participants who scored lower on the CRT-ICS made more errors in the "look-away" trials in the anti-saccade task. Participants who scored higher on the CRT-ICS looked more often towards more informative color subsets in the visual search task. However, when controlling for numeracy and visual working memory, CRT-ICS scores were only related to the control of visual attention in the anti-saccade task.


Asunto(s)
Memoria a Corto Plazo , Movimientos Sacádicos , Cognición , Humanos , Pruebas Neuropsicológicas
5.
Brain Sci ; 11(5)2021 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-33946847

RESUMEN

Psychological studies have demonstrated that expectations can have substantial effects on choice behavior, although the role of expectations on social decision making in particular has been relatively unexplored. To broaden our knowledge, we examined the role of expectations on decision making when interacting with new game partners and then also in a subsequent interaction with the same partners. To perform this, 38 participants played an Ultimatum Game (UG) in the role of responders and were primed to expect to play with two different groups of proposers, either those that were relatively fair (a tendency to propose an equal split-the high expectation condition) or unfair (with a history of offering unequal splits-the low expectation condition). After playing these 40 UG rounds, they then played 40 Dictator Games (DG) as allocator with the same set of partners. The results showed that expectations affect UG decisions, with a greater proportion of unfair offers rejected from the high as compared to the low expectation group, suggesting that players utilize specific expectations of social interaction as a behavioral reference point. Importantly, this was evident within subjects. Interestingly, we also demonstrated that these expectation effects carried over to the subsequent DG. Participants allocated more money to the recipients of the high expectation group as well to those who made equal offers and, in particular, when the latter were expected to behave unfairly, suggesting that people tend to forgive negative violations and appreciate and reward positive violations. Therefore, both the expectations of others' behavior and their violations play an important role in subsequent allocation decisions. Together, these two studies extend our knowledge of the role of expectations in social decision making.

6.
Brain Sci ; 11(3)2021 Mar 06.
Artículo en Inglés | MEDLINE | ID: mdl-33800904

RESUMEN

Being able to distinguish between safe and risky options is paramount in making functional choices. However, deliberate manipulation of decision-makers emotions can lead to risky behaviors. This study aims at understanding how affective reactions driven by normatively irrelevant affective cues can interfere with risk-taking. Good and Bad decks of the Iowa Gambling Task have been manipulated to make them unpleasant through a negative auditory manipulation. Anticipatory skin conductance response (SCR) and heart rate variability (HRV) have been investigated in line with the somatic marker hypothesis. Results showed fewer selections from Good decks when they were negatively manipulated (i.e., Incongruent condition). No effect of the manipulation was detected when Bad decks were negatively manipulated (i.e., Congruent condition). Higher anticipatory SCR was associated with Bad decks in Congruent condition. Slower heart rate was found before selections from Good decks in Control and Congruent condition and from Bad decks in Incongruent condition. Differences in heart rate between Bad and Good decks were also detected in Congruent condition. Results shed light on how normatively irrelevant affective cues can interfere with risk-taking.

7.
Front Psychol ; 12: 577992, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33664691

RESUMEN

Efforts to contain the spread of the coronavirus emphasize the central role of citizens' compliance with self-protective behaviors. Understanding the processes underlying the decision to self-protect is, therefore, essential for effective risk communication during the COVID-19 pandemic. In the present study, we investigate the determinants of perceived threat and engagement in self-protective measures in the United Kingdom, Italy, and Austria during the first wave of the pandemic. The type of disease (coronavirus vs. seasonal flu) and the type of numerical information regarding the disease (number of recovered vs. number of dead) were manipulated. Participants' cognitive and emotional risk assessment as well as self-reported engagement in protective behaviors were measured. Results show that worry was the best predictor of perceived threat in all countries. Moreover, a path analysis revealed that worry and perceived threat serially mediated the effect of type of disease on engagement in self-protective behaviors. The numerical framing manipulation did not significantly impact behavior but had a direct effect on worry and an indirect effect on perceived threat. These results are in line with theoretical accounts that identify emotions as a central determinant for risk perception. Moreover, our findings also suggest that effective risk communication during the COVID-19 pandemic should not stress comparisons to other, well-known viral diseases, as this can ultimately reduce self-protective behaviors.

8.
Stress ; 23(3): 290-297, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-31612772

RESUMEN

People tend to take more risks under stressful conditions. In the present study, we examined the effect of mild hypoxia, an unconscious and ongoing stressor, on decisions under uncertainty where probabilities are unknown. Participants completed the Balloon Analogue Risk Taking task (BART) in both a normoxic (20.9% oxygen concentration) and a mildly hypoxic (14.1% oxygen concentration) environment. The results indicate that people take more risks in a mildly hypoxic than in a normoxic environment. Despite inducing significant changes in physiological parameters, the oxygen manipulation remained undetected by participants allowing us to rule out a cognitive appraisal account for the effect. Moreover, the stressor was ongoing allowing us to discount possible post-stress reaction explanations. The current findings extend previous ones about the effect of stress on risk-taking and demonstrate that undetected stressors can increase risk-taking in decision making under ambiguity.


Asunto(s)
Toma de Decisiones , Asunción de Riesgos , Humanos , Hipoxia , Estrés Psicológico , Incertidumbre
9.
Cogn Emot ; 33(7): 1330-1341, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-30580654

RESUMEN

We examined whether enhancing (vs. not enhancing) the emotionality of a referent public good influences the subsequent valuation of a target public good. We predicted that it would and that the directionality of its impact would depend on a fundamental cognitive process - categorisation. If the target and referent goods belong to the same domain, we expected that the effect on the target would be in the same direction as the emotional enhancement of the referent (assimilation effect). However, if the target and referent goods belong to different domains, we expected that the effect on the target would be either negligible or in the opposite direction to that of the emotional enhancement of the referent (null or contrast effect). In Experiment 1 we examined the impact of emotionally enhancing a referent public good on feelings towards a target public good, whereas in Experiment 2 on the willingness to contribute towards a target public good. The results support the predicted interaction, which was driven by an assimilation effect for same-domain goods and a null effect for different-domain goods. In doing so, the present findings highlight the interplay between cognition and emotion in the valuation of public goods. We discuss theoretical and practical implications.


Asunto(s)
Cognición/fisiología , Análisis Costo-Beneficio/economía , Emociones/fisiología , Juicio , Política Pública/economía , Adulto , Educación/economía , Femenino , Humanos , Israel , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Contaminación del Agua/economía , Adulto Joven
10.
J Gambl Stud ; 34(2): 429-447, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28770486

RESUMEN

A group of pathological gamblers and a group of problem gamblers (i.e., gamblers at risk of becoming pathological) were compared to healthy controls on their risk-taking propensity after prior losses. Each participant played both the Balloon Analogue Risk Taking task (BART) and a modified version of the same task, where individuals face five repeated predetermined early losses at the onset of the game. No significant difference in risk-taking was found between groups on the standard BART task, while significant differences emerged when comparing behaviors in the two tasks: both pathological gamblers and controls reduced their risk-taking tendency after prior losses in the modified BART compared to the standard BART, whereas problem gamblers showed no reduction in risk-taking after prior losses. We interpret these results as a sign of a reduced sensitivity to negative feedback in problem gamblers which might contribute to explain their loss-chasing tendency.


Asunto(s)
Conducta Adictiva/psicología , Juego de Azar/psicología , Conducta Adictiva/terapia , Cognición/fisiología , Conducta Compulsiva/diagnóstico , Grupos Control , Femenino , Juego de Azar/terapia , Humanos , Conducta Impulsiva/fisiología , Control Interno-Externo , Masculino , Persona de Mediana Edad , Calidad de Vida/psicología , Conducta de Reducción del Riesgo , Asunción de Riesgos
11.
Front Psychol ; 8: 2142, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29312030

RESUMEN

Much is known about the effect of negative arousal on decision making, but little is known about the effect of positive arousal. In this study, we manipulated positive arousal and measured individual choices under risk using an incentivized task. Participants were randomly assigned to either a low arousal or a high arousal condition and asked to choose between pairs of two-outcome monetary lotteries with the same expected value but different risk in terms of outcome variance. The probability was set at 50% for each lottery. Participants in the high arousal group selected the riskier lottery more often and took more time to make choices than participants in the low arousal group. This finding shows that introducing a pleasant arousing cue as part of the decision context shifts an individual's preferences toward the risky economic option and away from the safer one.

12.
J Neurosci Psychol Econ ; 9(2): 88-99, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27668033

RESUMEN

Putative human chemosignals have been shown to influence mood states and emotional processing, but the connection between these effects and higher-order cognitive processing is not well established. This study utilized an economic game (Dictator Game) to test whether androstadienone (AND), an odorous compound derived from testosterone, impacts on altruistic behavior. We predicted that the female participants would act more generously in the AND condition, exhibiting a significant interaction effect between gender and AND on Dictator Game contributions. We also expected that the presence of AND should increase the positive mood of the female participants, compared to a control odor condition and also compared to the mood of the male participants. The results confirm our hypotheses: for women the subliminal perception of AND led to larger monetary donations, compared to a control odor, and also increased positive mood. These effects were absent or significantly weaker in men. Our findings highlight the capacity of human putative chemosignals to influence emotions and higher cognitive processes - in particular the processes used in the context of economic decisions - in a gender-specific way.

13.
PLoS One ; 11(1): e0146914, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26771530

RESUMEN

We investigate the effect of graph scale on risky choices. By (de)compressing the scale, we manipulate the relative physical distance between options on a given attribute in a coordinate graphical context. In Experiment 1, the risky choice changes as a function of the scale in the graph. In Experiment 2, we show that the type of graph scale also affects decision times. In Experiment 3, we examine the graph scale effect by using real money among students who have taken statistics courses. Consequently, the scale effects still appear even when we control the variations in calculation ability and increase the gravity with which participants view the consequence of their decisions. This finding is inconsistent with descriptive invariance of preference. The theoretical implications and practical applications of the findings are discussed.


Asunto(s)
Conducta de Elección/fisiología , Toma de Decisiones/fisiología , Adulto , Femenino , Humanos , Masculino , Asunción de Riesgos , Estudiantes/psicología , Adulto Joven
14.
Front Psychol ; 6: 1287, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26379603

RESUMEN

A way to make people save energy is by informing them that "comparable others" save more. We investigated whether, one can further improve this nudge by manipulating Who the "comparable others" are. We asked participants to imagine receiving feedback stating that their energy consumption exceeded that of "comparable others" by 10%. We varied Who the "comparable others" were in a 2 × 2 design: they were a household that was located either in the same neighborhood as themselves or in a different neighborhood, and its members were either identified (by names and a photograph) or unidentified. We also included two control conditions: one where no feedback was provided, and one where only statistical feedback was provided (feedback about an average household). We found that it matters Who the "comparable others" are. The most effective feedback was when the referent household was from the same neighborhood as the individual's and its members were not identified.

15.
Psych J ; 4(2): 66-73, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26261906

RESUMEN

We investigated whether pleasant ambient scents influence hypothetical and real money contributions toward environmental goods. We hypothesized that they would increase such contributions more when they were congruent with the target goods than when they were incongruent or when no scent was released. The results supported this congruity hypothesis. We offer a mental accessibility account: Pleasant scents that are congruent with a target good make positive information about that good more accessible and thus promote prosocial behavior.


Asunto(s)
Conducta/fisiología , Odorantes , Olfato/fisiología , Ambiente , Femenino , Humanos , Masculino
16.
Front Psychol ; 6: 844, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26136721

RESUMEN

In this paper, we investigate whether cognitive reflection and numeracy skills affect the quality of the consumers' decision-making process in a purchase decision context. In a first (field) experiment, an identical product was on sale in two shops with different initial prices and discounts. One of the two deals was better than the other and the consumers were asked to choose the best one and to describe which arithmetic operations they used to solve the problem; then they were asked to complete the numeracy scale (Lipkus et al., 2001). The choice procedures used by the consumers were classified as "complete decision approach" when all the arithmetic operations needed to solve the problem were computed, and as "partial decision approach" when only some operations were computed. A mediation model shows that higher numeracy is associated with use of the complete decision approach. In turn, this approach is positively associated with the quality of the purchase decision. Given that these findings highlight the importance of the decision processes, in a second (laboratory) experiment we used a supplementary method to study the type of information search used by the participants: eye-tracking. In this experiment the participants were presented with decision problems similar to those used in Experiment 1 and they completed the Lipkus numeracy scale and the Cognitive Reflection Test (CRT; Frederick, 2005). Participants with a high CRT score chose the best deal more frequently, and showed a more profound and detailed information search pattern compared to participants with a low CRT score. Overall, results indicate that higher levels of cognitive reflection and numeracy skills predict the use of a more thorough decision process (measured with two different techniques: retrospective verbal reports and eye movements). In both experiments the decision process is a crucial factor which greatly affects the quality of the purchase decision.

17.
PLoS One ; 9(10): e109197, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25296184

RESUMEN

Impulsivity is associated with several psychiatric disorders in which the loss of control of a specific behavior determines the syndrome itself. One particularly interesting population characterized by reported high impulsivity and problematic decision-making are those diagnosed with pathological gambling. However the association between impulsivity and decision making in pathological gambling has been only partially confirmed until now. We tested 23 normal controls and 23 diagnosed pathological gamblers in an intertemporal choice task, as well as other personality trait measurements. Results showed that gamblers scored higher on impulsivity questionnaires, and selected a higher percentage of impatient choices (higher percentage of smaller, sooner rewards), when compared to normal controls. Moreover, gamblers were faster in terms of reaction times at selecting the smaller, sooner options and discounted rewards more rapidly over time. Importantly, regression analyses clarified that self-reported measures of impulsivity played a significant role in biasing decisions towards small but more rapidly available rewards. In the present study we found evidence for impulsivity in personality traits and decisions in pathological gamblers relative to controls. We conclude by speculating on the need to incorporate impulsivity and decision biases in the conceptualization of pathological gambling for a better understanding and treatment of this pathology.


Asunto(s)
Toma de Decisiones/fisiología , Juego de Azar/fisiopatología , Conducta Impulsiva/fisiología , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad
18.
Psychiatry Res ; 219(3): 562-9, 2014 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-25024055

RESUMEN

Research has shown that healthy people would rather avoid losses than gamble for even higher gains. On the other hand, research on pathological gamblers (PGs) demonstrates that PGs are more impaired than non-pathological gamblers in choice under risk and uncertainty. Here, we investigate loss aversion by using a rigorous and well-established paradigm from the field of economics, in conjunction with personality traits, by using self-report measures for PGs under clinical treatment. Twenty pathological gamblers, at the earlier and later stages of clinical treatment, were matched to 20 non-gamblers (NG). They played a "flip coin task" by deciding across 256 trials whether to accept or reject a 50-50 bet with a variable amount of gains and losses. They completed questionnaires aimed at assessing impulsivity. Compared to NG, pathological gamblers, specifically those in the later stages of therapy, were more loss averse and accepted a lower number of gambles with a positive expected value, whereas their impulsivity traits were significantly higher. This study shows for the first time that changes in loss aversion, but not in personality traits, are associated with the time course of pathology. These findings can be usefully employed in the fields of both gambling addiction and decision-making.


Asunto(s)
Conducta Adictiva/psicología , Toma de Decisiones , Trastornos Disruptivos, del Control de Impulso y de la Conducta/psicología , Juego de Azar/psicología , Conducta Impulsiva/fisiología , Adulto , Conducta Adictiva/diagnóstico , Trastornos Disruptivos, del Control de Impulso y de la Conducta/diagnóstico , Femenino , Humanos , Masculino , Riesgo , Autoinforme , Encuestas y Cuestionarios , Incertidumbre
19.
Stress ; 17(2): 204-10, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24491066

RESUMEN

Hypoxia, the deprivation of adequate oxygen supply, constitutes a direct threat to survival by disrupting cardiovascular or respiratory homeostasis and eliciting a respiratory distress. Although hypoxia has been shown to increase brain vulnerability and impair basic cognitive functions, only one study has examined its effect on decision-making. The present study examined the effect of mild hypoxia on individual's loss aversion, that is, the tendency to be more affected by losses than equal sized gains. A sample of 26 participants were asked to either accept or reject a series of mixed gambles once in an oxygen-depleted environment (14.1% oxygen concentration) and once in a normoxic environment (20.9% oxygen concentration). Each gamble involved a 50-50 chance of winning or losing specified amounts of money. Mild hypoxia decreased loss aversion: on average in the normoxic condition participants accepted gambles if the gain was at least 2.4 times as large as the loss, whereas in the oxygen-depleted condition participants accepted gambles if the gain was at least 1.7 times as large as the loss. Mild hypoxia may push individuals to be less cautious in daily decisions that involve a trade-off between a gain and a loss.


Asunto(s)
Conducta de Elección/fisiología , Toma de Decisiones/fisiología , Juegos Experimentales , Hipoxia/psicología , Oxígeno/sangre , Asunción de Riesgos , Adulto , Altitud , Femenino , Frecuencia Cardíaca , Humanos , Juicio/fisiología , Masculino , Oximetría , Oxígeno/administración & dosificación , Estrés Fisiológico , Adulto Joven
20.
Front Hum Neurosci ; 7: 523, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24027512

RESUMEN

Previous studies have reported the effect of emotion regulation (ER) strategies on both individual and social decision-making, however, the effect of regulation on socially driven emotions independent of decisions is still unclear. In the present study, we investigated the neural effects of using reappraisal to both up- and down-regulate socially driven emotions. Participants played the Dictator Game (DG) in the role of recipient while undergoing fMRI, and concurrently applied the strategies of either up-regulation (reappraising the proposer's intentions as more negative), down-regulation (reappraising the proposer's intentions as less negative), as well as a baseline "look" condition. Results showed that regions responding to the implementation of reappraisal (effect of strategy, that is, "regulating regions") were the inferior and middle frontal gyrus, temporo parietal junction and insula bilaterally. Importantly, the middle frontal gyrus activation correlated with the frequency of regulatory strategies in daily life, with the insula activation correlating with the perceived ability to reappraise the emotions elicited by the social situation. Regions regulated by reappraisal (effect of regulation, that is, "regulated regions") were the striatum, the posterior cingulate and the insula, showing increased activation for the up-regulation and reduced activation for down-regulation, both compared to the baseline condition. When analyzing the separate effects of partners' behavior, selfish behavior produced an activation of the insula, not observed when subjects were treated altruistically. Here we show for the first time that interpersonal ER strategies can strongly affect neural responses when experiencing socially driven emotions. Clinical implications of these findings are also discussed to understand how the way we interpret others' intentions may affect the way we emotionally react.

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