There is a gap of knowledge about the extent to which gratitude is indeed the working mechanism of change in gratitude interventions aiming to promote mental well-being. This study explores the mediational role of gratitude as mood in the context of a recently conducted randomized controlled trial on the effects of a 6-week gratitude intervention on mental well-being in comparison with a waitlist control group. Gratitude as mood was measured at 2, 4, and 6 weeks. Both simple and multiple mediation (...) models were conducted as well as various sensitivity analyses. Results showed a gradual increase of gratitude as mood during the intervention. The effects of the 6-week gratitude intervention on mental well-being were mediated by increases of gratitude as mood at 4 weeks but not at 2 weeks. These findings suggest a dose-response relationship for gratitude interventions, but more research is warranted. (shrink)

Amsterdam University Press is a leading publisher of academic books, journals and textbooks in the Humanities and Social Sciences. Our aim is to make current research available to scholars, students, innovators, and the general public. AUP stands for scholarly excellence, global presence, and engagement with the international academic community.

Trude Dijkstra discusses how Chinese religion and philosophy were represented in printed works produced in the Dutch Republic between 1595 and 1700. By focusing on books, newspapers, learned journals, and pamphlets, this study sheds new light on the cultural encounter between China and western Europe in the early modern period. Form, content, and material-technical aspects of different media in Dutch and French are analysed, providing new insights into the ways in which readers could take note of Chinese religion and (...) philosophy. This study thereby demonstrates that there was no singular image of Chinese religion and philosophy, but rather a varied array of notions on the subject. (shrink)

Teen girls’ ‘sexy selfies’ have become highly politicised over the last years, and while feminist scholars have comprehensively analysed present day discourses about this topic, research about teen girls’ own reflections is still scarce. Studies that did include girls’ voices demonstrated how girls’ navigations of sexiness are related to the performance of gender and sexuality. The present article, which is based on ethnographic fieldwork among Dutch young people, contributes to and extends this strand of research by exploring how girls’ navigations (...) of sexy selfies are related to the performance of not just gender and sexuality, but also other intersecting axes of social differentiation, including axes that have remained undertheorised such as smartness, maturity and popularity. Through their navigations of sexy selfies, girls perform complex, intersectional identities in interaction with dominant discourses about sexiness, the materiality of their bodies, their social position and the specific context of self-making practices. Involving this complexity in discussions about sexy selfies can create promising opportunities for interrogating social norms, stereotypes and power inequalities. (shrink)

Not much has been written on the foreign assistance policy of Belgium, but work that focuses on it singly or in comparison with other cases tends to charge that Belgium lacks a coherent foreign assistance policy. This study examines the rhetoric of Belgian decision makers and the policy behavior of the state, utilizing a framework of four national role conception profiles, each bringing together a set of perceptions regarding the role decision makers perceive their state to play in this issue (...) area.Parliamentary debates for the period 1975-90 are coded for mention of themes associated with these profiles, white OECD data regarding the foreign aid expenditures for the same period provide insight into the policy behavior. It concludes that Belgian decision makers do not perceive foreign assistance as a separate issue area, but as inextricably linked with foreign policy. (shrink)

This article discusses the Italian translation of Suetonius's Lives of the Twelve Caesars by Dante Popoleschi, a little-known Florentine humanist and member of the Orti Oricellari in the early sixteenth century. Since Popoleschi's translation, which is preserved in a single manuscript copy dedicated to King François Ier of France, has never been studied in detail and, moreover, is unknown to present-day students of Suetonius, this contribution aims to examine the work both in its own right and in comparison to Popoleschi's (...) volgarizzamenti of Caesar's Commentaries on the Gallic War and Donato Acciaiuoli's Life of Scipio. By placing Popoleschi's version of Suetonius in its original cultural-historical context, it also sheds new light on his life, works and translation activity. (shrink)

Objective: Persuasive messages regarding fruit and vegetable consumption often meet defensive reactions from recipients, which may lower message effectiveness. Individual differences in emotion regulation and gender are expected to predict these reactions. In the working memory account of persuasion, inducing voluntary eye movements during the processing of the auditory persuasive information might prevent defensiveness and thereby increase message effectiveness.Methods: Participants in two independently recruited samples from the general population listened to a negatively framed auditory persuasive message advocating fruit and vegetable (...) consumption. Half of them were asked to keep following a regularly moving stimulus on their screen with their eyes. At pretest, the individual differences of cognitive self-affirmation inclination and gender were assessed to predict defensive reactions.Results: In Study 1, induced eye movements significantly increased self-reported consumption after 2 weeks when CSAI was low, but only in males, as indicated by a significant three-way interaction. With negative self-evaluative emotions as dependent variable, this three-way interaction was also significant, suggesting that induced eye movements prevented defensiveness in low CSAI males. Study 2 did not assess consumption but replicated the latter three-way interaction.Conclusion: The studies replicated our earlier findings regarding the moderating effects of individual differences in emotion regulation on persuasion, but they also revealed gender differences in persuasion that are related to the working memory. The working memory account of persuasion provides new theoretical as well as practical angles on persuasion to target individuals in persuasion to increase fruit and vegetable consumption. (shrink)

IntroductionIn addition to being a source of valuable nutrients, meat consumption has several negative consequences; for the environment, for animal welfare, and for human health. To persuade people to lower their meat consumption, it is assumed that the personal relevance of the topic of lowering meat consumption is important as it determines how people perceive the quality of the arguments.MethodIn an experimental exploratory field study, participants recruited from the general Italian population were randomized to one of the four conditions with (...) a text with pictures on the environmental, animal welfare, or health consequences of meat consumption, or a text on mustard. The dependent variables were self-reported consumption of red meat and processed meat after 2 weeks. Personal relevance was assessed in the pre-test with self-reported meat consumption and intention.ResultsThe interaction between pre-test meat consumption and condition was significant: In participants who scored high on pre-test meat consumption, the self-reported red meat consumption after 2 weeks in the health argument condition was significantly lower compared to the control condition and the environmental argument condition. The effects of pre-test intention as a moderator were less certain.DiscussionThe persuasive effects of the different arguments made a difference only in people who ate a relatively high level of meat in pre-test, and the type of arguments made a difference. Although the present outcomes are caused by the specific formulations of the arguments in this study, the results do show that it is relevant to choose the arguments carefully to ensure effectiveness. (shrink)

This paper outlines a multi-agent architecture for regulated information exchange of crime investigation data between police forces. Interactions between police officers about information exchange are analysed as negotiation dialogues with embedded persuasion dialogues. An architecture is then proposed consisting of two agents, a requesting agent and a responding agent, and a communication language and protocol with which these agents can interact to promote optimal information exchange while respecting the law. Finally, dialogue policies are defined for the individual agents, specifying their (...) behaviour within a negotiation. Essentially, when deciding to accept or reject an offer or to make a counteroffer, an agent first determines whether it is obligatory or permitted to perform the actions specified in the offer. If permitted but not obligatory, the agent next determines whether it is in his interest to accept the offer. (shrink)

The brain adapts to changes that take place in the body. Deprivation of input results in size reduction of cortical representations, whereas an increase in input results in an increase of representational space. Amputation forms one of the most dramatic disturbances of the integrity of the body. The brain adapts in many ways to this breakdown of the afferent–efferent equilibrium. However, almost all studies focus on the sensorimotor consequences. It is not known whether adaptation takes place also at other “levels” (...) in the system. The present study addresses the question whether amputees dream about their intact body, as before the amputation, or about the body after the amputation and whether the dream content was a function of time since the amputation and type of amputation. The results show that the majority of the dreamers reported dreams about their intact body although the mean time that elapsed since the amputation was twelve years. There is no clear relation with the type of amputation. The results give modest evidence for the existence of a basic neural representation of the body that is, at least, partly genetically determined and by this relatively insensitive for changes in the sensory input. (shrink)

Addressing Problems Instead of Diagnoses: Reimagining Liberalism Regarding Disability and Public Health The public health systems of liberal states systematically fail to meet the goals and obligations of the Convention on the Rights of Persons with Disabilities, which aims to facilitate full societal participation and independent life choices by all impaired persons, as well as the unburdening of their private caretakers. This failure does not stem from a lack of money or effort by governments and other societal institutions, but flaws (...) in the anatomy of these systems. As these systems confine institutional assistance to the needs of persons with certain delineated disabilities, they neglect the needs of other persons, whose disabilities do not fit this mould. The responsibility for the latter group thus falls to their immediate social circle. These private caretakers are in turn seldom supported. To remedy this situation, I will present the alternative paradigm of vulnerability theory as the possible foundation for a more inclusive approach to public health. (shrink)

BackgroundCRISPR-Cas9, a technology enabling modification of the human genome, is developing rapidly. There have been calls for public debate to discuss its ethics, societal implications, and governance. So far, however, little is known about public attitudes on CRISPR-Cas9. This study contributes to a better understanding of public perspectives by exploring the various holistic perspectives Dutch citizens have on CRISPR-Cas9.MethodsThis study used Q methodology to identify different perspectives of Dutch citizens (N = 30) on the use of CRISPR-Cas9. The Q-sort method (...) aims at segmenting audiences based on the structural characteristics of their perspectives. Participants individually ranked 32 statements about CRISPR-Cas9 and discussed their rankings in small groups. By-person factor analysis was performed using PQMethod. Participants’ contributions to the discussions were used to further make sense of the audience segments identified.ResultsFive perspectives on CRISPR-Cas9 were identified: (1) pragmatic optimism (2) concerned scepticism; (3) normative optimism; (4) enthusiastic support; and (5) benevolent generalism. Each perspective represents a unique position motivated by different ranking rationales. Sorting rationales included improving health, preventing negative impacts on society, and fear of a slippery slope. Overall, there is broad, but not universal support for medical uses of CRISPR-Cas9.ConclusionsResearch on CRISPR-Cas9 should prioritise the broadly supported applications of the technology. Research and public debates on CRISPR-Cas9, its uses, its broader implications, and the governance of CRISPR-Cas9 are recommended. A discourse that includes all perspectives can contribute to the embedding of future uses of CRISPR-Cas9 in society. This study shows that Q methodology followed by group discussions enables citizens to contribute meaningfully to discourses about research. (shrink)

This paper outlines a multi-agent architecture for regulated information exchange of crime investigation data between police forces. Interactions between police officers about information exchange are analysed as negotiation dialogues with embedded persuasion dialogues. An architecture is then proposed consisting of two agents, a requesting agent and a responding agent, and a communication language and protocol with which these agents can interact to promote optimal information exchange while respecting the law. Finally, dialogue policies are defined for the individual agents, specifying their (...) behaviour within a negotiation. Essentially, when deciding to accept or reject an offer or to make a counteroffer, an agent first determines whether it is obligatory or permitted to perform the actions specified in the offer. If permitted but not obligatory, the agent next determines whether it is in his interest to accept the offer. (shrink)

Amsterdam University Press is a leading publisher of academic books, journals and textbooks in the Humanities and Social Sciences. Our aim is to make current research available to scholars, students, innovators, and the general public. AUP stands for scholarly excellence, global presence, and engagement with the international academic community.

A prevalent assumption in metaethics is that people believe in moral objectivity. If this assumption were true then people should believe in the possibility of objective moral progress, objective moral knowledge, and objective moral error. We developed surveys to investigate whether these predictions hold. Our results suggest that, neither abstractly nor concretely, people dominantly believe in the possibility of objective moral progress, knowledge and error. They attribute less objectivity to these phenomena than in the case of science and no more, (...) or only slightly more, than in the cases of social conventions and personal preferences. This finding was obtained for a regular sample as well as for a sample of people who are particularly likely to be reflective and informed (philosophers and philosophy students). Our paper hence contributes to recent empirical challenges to the thesis that people believe in moral objectivity. (shrink)

The changing sacred landscape of Late Antiquity has long been seen in terms of a monolithic development ‘from temple to church’. Recent scholarship, however, has discarded this picture in favour of a more complex view, in which freestanding churches (and monasteries) were increasingly built from the fourth century onwards, while at the same time various, mostly practical, ways were found of dealing with the sacred built environment of the past. The Late Antique papyri from Oxyrhynchus contain dozens of references to (...) churches and monasteries, and, occasionally, also temples. The city thus affords an excellent opportunity to study the changing sacred landscape of this period in a local context. In previous scholarship, several lists have been compiled to collect the attestations of churches. The last comprehensive collection of the material dates back two decades, however, while the one list of monasteries is heavily outdated. Moreover, a list of temples in the Late Antique papyri has never been put together. This article, then, presents, in the appendix, a brand-new Checklist of temples, churches and monasteries of Late Antique Oxyrhynchus. It serves as the basis for the detailed analysis of the data that precedes it, which shows that these data are in perfect agreement with the now prevalent general view among Late Antique scholars of how the sacred landscape changed over time. For comparison with the findings from the papyri, we will also briefly discuss the results of recent excavations at the site. (shrink)

The present paper draws on climate science and the philosophy of science in order to evaluate climate-model-based approaches to assessing climate projections. We analyze the difficulties that arise in such assessment and outline criteria of adequacy for approaches to it. In addition, we offer a critical overview of the approaches used in the IPCC working group one fourth report, including the confidence building, Bayesian and likelihood approaches. Finally, we consider approaches that do not feature in the IPCC reports, including three (...) approaches drawn from the philosophy of science. We find that all available approaches face substantial challenges, with IPCC approaches having as a primary source of difficulty their goal of providing probabilistic assessments. (shrink)

When bilingual speakers use two languages in the same utterance, this is called code-switching. Previous research indicates that bilinguals’ likelihood to code-switch is enhanced when the utterance to be produced (1) contains a word with a similar form across languages (lexical triggering) and (2) is preceded by a code-switched utterance, for example from a dialogue partner (interactive alignment/priming of code-switching). Both factors have mostly been tested on corpus data and have not yet been studied in combination. In two experiments, we (...) therefore investigated the combined effects of interactive alignment and lexical triggering on code-switching. In Experiment 1, Dutch-English bilinguals described pictures to each other in a dialogue game where a confederate’s code-switching was manipulated. The participants were free to use either Dutch, English, or a combination of Dutch and English in describing the pictures, so they could voluntarily code-switch or not. The pictures contained a cognate [e.g., roos (rose)], a false friend [e.g., rok (skirt, false friend with rock )], or a control word [e.g., jas (coat)]. Participants code-switched more often when the confederate had just code-switched (indicating interactive alignment). They also code-switched more often when cognates were involved, but only when the confederate had just code-switched. This indicates that lexical triggering is driven by interactive alignment. False friends did not enhance the likelihood of code-switching. Experiment 2 used a similar dialogue game with participants from the same population but focused specifically on how to account for interactive alignment of code-switching. Rather than aligning on their dialogue partner’s pragmatic act of code-switching, bilinguals aligned on the language activation from the utterance produced by their dialogue partner. All in all, the results show how co-activation of languages at multiple levels of processing together influence bilinguals’ tendency to code-switch. The findings call for a perspective on bilingual language production in which cross-speaker and cross-language processes are combined. (shrink)

Embodied theories of language postulate that language meaning is stored in modality-specific brain areas generally involved in perception and action in the real world. However, the temporal dynamics of the interaction between modality-specific information and lexical-semantic processing remain unclear. We investigated the relative timing at which two types of modality-specific information (action-based and visual-form information) contribute to lexical-semantic comprehension. To this end, we applied a behavioral priming paradigm in which prime and target words were related with respect to (1) action (...) features, (2) visual features, or (3) semantically associative information. Using a Go/No-Go lexical decision task, priming effects were measured across four different inter-stimulus intervals (ISI = 100, 250, 400, and 1000 ms) to determine the relative time course of the different features. Notably, action priming effects were found in ISIs of 100, 250, and 1000 ms whereas a visual priming effect was seen only in the ISI of 1000 ms. Importantly, our data suggest that features follow different time courses of activation during word recognition. In this regard, feature activation is dynamic, measurable in specific time windows but not in others. Thus the current study (1) demonstrates how multiple ISIs can be used within an experiment to help chart the time course of feature activation and (2) provides new evidence for embodied theories of language. (shrink)

The authors of the paper ‘Advance euthanasia directives: a controversial case and its ethical implications’ articulate concerns and reasons with regard to the conduct of euthanasia in persons with dementia based on advance directives. While we agree on the conclusion that there needs to be more attention for such directives in the preparation phase, we disagree with the reasons provided by the authors to support their conclusions. We will outline two concerns with their reasoning by drawing on empirical research and (...) by providing reasons that contradict their assumptions about competence of people with dementia and the importance of happiness in reasoning about advance directives of people with dementia. We will draw attention to the important normative questions that have been overstepped in their paper, and we will outline why further research is required. (shrink)

The present paper draws on climate science and the philosophy of science in order to evaluate climate-model-based approaches to assessing climate projections. We analyze the difficulties that arise in such assessment and outline criteria of adequacy for approaches to it. In addition, we offer a critical overview of the approaches used in the IPCC working group one fourth report, including the confidence building, Bayesian and likelihood approaches. Finally, we consider approaches that do not feature in the IPCC reports, including three (...) approaches drawn from the philosophy of science. We find that all available approaches face substantial challenges, with IPCC approaches having as a primary source of difficulty their goal of providing probabilistic assessments. (shrink)