When making substituted judgments for incapacitated patients, surrogates often struggle to guess what the patient would want if they had capacity. Surrogates may also agonize over having the (sole) responsibility of making such a determination. To address such concerns, a Patient Preference Predictor (PPP) has been proposed that would use an algorithm to infer the treatment preferences of individual patients from population-level data about the known preferences of people with similar demographic characteristics. However, critics have suggested that even if (...) such a PPP were more accurate, on average, than human surrogates in identifying patient preferences, the proposed algorithm would nevertheless fail to respect the patient’s (former) autonomy since it draws on the ‘wrong’ kind of data: namely, data that are not specific to the individual patient and which therefore may not reflect their actual values, or their reasons for having the preferences they do. Taking such criticisms on board, we here propose a new approach: the Personalized Patient Preference Predictor (P4). The P4 is based on recent advances in machine learning, which allow technologies including large language models to be more cheaply and efficiently ‘fine-tuned’ on person-specific data. The P4, unlike the PPP, would be able to infer an individual patient’s preferences from material (e.g., prior treatment decisions) that is in fact specific to them. Thus, we argue, in addition to being potentially more accurate at the individual level than the previously proposed PPP, the predictions of a P4 would also more directly reflect each patient’s own reasons and values. In this article, we review recent discoveries in artificial intelligence research that suggest a P4 is technically feasible, and argue that, if it is developed and appropriately deployed, it should assuage some of the main autonomy-based concerns of critics of the original PPP. We then consider various objections to our proposal and offer some tentative replies. (shrink)

This thesis investigates two main issues concerning the behavior of rational agents, preference dynamics and agent diversity. -/- We take up two questions left aside by von Wright, and later also the multitude of his successors, in his seminal book Logic of Preference in 1963: reasons for preference, and changes in preference. Various notions of preference are discussed, compared and further correlated in the thesis. In particular, we concentrate on extrinsic preference. Contrary to intrinsic (...) preference, extrinsic preference is reason-based, i.e. one's preference for one option over another has a reason. A logical model is proposed and its properties are determined. Dynamics come in naturally, since reasons for the preferences can change. Logical systems and formal results regarding dynamical preference change are then presented. -/- Preference arises from comparisons between alternatives. A first option is to compare situations. Abstractly speaking, preferences are in this case between propositions, viewed as sets of possible worlds. The reasons can then be based on a `betterness' relation over possible worlds. Propositional preference arises as a lift from this primitive relation. A standard modal logical approach is taken and we use a modality for the betterness relation in the language. We then model preference change by techniques from dynamic epistemic logic (DEL), where a typical action, e.g. a suggestion or a command can change the betterness ordering of the worlds, and thereby the propositional preference. Dynamic reduction axioms are obtained to encode exactly how such a change takes place. We obtain a complete dynamic preference logic. -/- A second option is to compare objects as such. Concretely, properties of the objects often determine the preference over the objects. Properties are now the reasons. Inspired by Optimality Theory (OT), we propose a priority sequence, an ordering of properties. Various ways of getting a preference from the priority sequence are investigated, though we mostly follow the OT approach. We use a fragment of first-order logic to describe the situation. Here, on the dynamic side, it is priority change that leads to preference change. Using the DEL methodology again we propose a complete set of reduction axioms concerning the possible dynamic operations on priority sequences. -/- Not surprisingly, the above two views are closely related. After all, possible worlds can be thought of as objects! On the basis of a systematic comparison of the two views, we develop a two level perspective, in which the models themselves are structured in layers. In particular, correspondence results between the changes at the level of the possible worlds and the changes at the level of the priority sequences are proved. We end up by sketching a two-level preferential predicate logic to describe more complex circumstances in which situations and objects are compared simultaneously. -/- But we do not see this as the whole story. Preference does not live by itself, it is often intermingled with epistemic notions of knowledge and belief. One can have different intuitions about how this entanglement operates. A few options are discussed, and proposals for logical models are presented. When moving to dynamics, we now see a picture of knowledge update, belief revision and preference change taking place symbiotically, often unconsciously as in real life. -/- The resulting picture in the thesis is one of agents that process information and adjust beliefs and preferences in many different ways. There is no logically prescribed unique norm for doing this. The second part of the thesis takes this general phenomenon of diversity of agents as its focus, since it raises many issues for logical systems and the idealized agents which they normally presuppose. In reality, agents can differ across a wide spectrum of cognitive abilities and habits: in their memory capacity, observation power, inferential power, introspective ability, and revision policies when facing new information. -/- Two kinds of agents, perfect recall agents, and memory-free agents are studied thoroughly, in the setting of playing games. We show how current dynamic logics can be `parametrized' to allow for this memory diversity, with new characterizations of agent types resulting in complete dynamic-epistemic logics. The other dimension of the reality of diverse agents is that, however different they are, they often do manage to coordinate with each other successfully. While this theme has been prominent in game theory and multi-agent systems, it has received hardly any attention in logic. We analyze this interaction between different agents by looking at concrete scenarios which model their types explicitly. -/- Finally, we analyze the issue of agent diversity in its generality, discussing what dynamic logics would have to look like to become a full-fledged account of agents of different capacities and tendencies that pursue and sometimes achieve their goals in irreducibly social settings. -/- . (shrink)

Determining the precise nature of the connection between preference, choice, and welfare has arguably been the central project in the field of welfare economics, which aims to offer a proper guide for economists in the making of policy decisions that affect people’s welfare. The two leading approaches here historically – the revealed preference and latent preference approaches – seem equally incapable of so guiding economists. I argue that the deadlock here is due to welfare economists’ failure to (...) recognize a crucial distinction between two senses of “preference.” I analyze and defend these senses of “preference,” and argue that each shares a close connection with just one of choice and welfare. This analysis reveals how economists should conceive of both the connections between “preference,” choice, and welfare, and the proper roles of these concepts in welfare economics. I conclude by showing this analysis to best explain the plausibility of two leading alternative approaches from Hausman and Sugden. (shrink)

In general, the technical apparatus of decision theory is well developed. It has loads of theorems, and they can be proved from axioms. Many of the theorems are interesting, and useful both from a philosophical and a practical perspective. But decision theory does not have a well agreed upon interpretation. Its technical terms, in particular, ‘utility’ and ‘preference’ do not have a single clear and uncontroversial meaning. How to interpret these terms depends, of course, on what purposes in pursuit (...) of which one wants to put decision theory to use. One might want to use it as a model of economic decision-making, in order to predict the behavior of corporations or of the stock market. In that case, it might be useful to interpret the technical term ‘utility’ as meaning money profit. Decision theory would then be an empirical theory. I want to look into the question of what ‘utility’ could mean, if we want decision theory to function as a theory of practical rationality. I want to know whether it makes good sense to think of practical rationality as fully or even partly accounted for by decision theory. I shall lay my cards on the table: I hope it does make good sense to think of it that way. For, I think, if Humeans are right about practical rationality, then decision theory must play a very large part in their account. And I think Humeanism has very strong attractions. (shrink)

Statements not only update our current knowledge, but also have other dynamic effects. In particular, suggestions or commands ?upgrade' our preferences by changing the current order among worlds. We present a complete logic of knowledge update plus preference upgrade that works with dynamic-epistemic-style reduction axioms. This system can model changing obligations, conflicting commands, or ?regret'. We then show how to derive reduction axioms from arbitrary definable relation changes. This style of analysis also has a product update version with preferences (...) between actions, as well as worlds. Some illustrations are presented involving defaults and obligations. We conclude that our dynamic framework is viable, while admitting a further extension to more numerical ?utility update'. (shrink)

Two particularly puzzling phenomena among standard decision theorists and economists are those of intransitive choice and preference reversal. Given certain standard assumptions about human beings and our basic conative attitudes, some take these phenomena to cast doubt on the idea of our having a stable set of basic conative attitudes that (together with our beliefs) determine choices. In this paper, I reject one of these standard assumptions, and show that we can thereby solve these puzzles. Specifically, I reject the (...) widely assumed “preference-first view,” according to which preference is our most basic form of conative attitude relevant to decision making. And, I adopt and defend the alternative “desire-first view,” according to which desire is our most basic form of conative attitude relevant to decision making. I offer a general account of the relationship between desire, preference, context, and choice, on this view, and show that the resulting account can naturally explain the phenomena of intransitive choice and preference reversal. I also show that this view offers a natural analysis of choice more generally, and that it does so without casting doubt on the idea that we have a stable set of basic conative attitudes determining choice. (shrink)

The basic theory of preference relations contains a trivial part reflected by axioms A1 and A2, which say that preference relations are preorders. The next step is to find other axims which carry the theory beyond the level of the trivial. This paper is to a great part a critical survey of such suggested axioms. The results are much in the negative — many proposed axioms imply too strange theorems to be acceptable as axioms in a general theory (...) of preference. This does not exclude, of course, that they may well be reasonable axioms for special calculi of preference. I believe that many axioms which are rejected here may be plausible if their range of application is restricted by conditions which are possible to formulate only in a language richer than that of the propositional calculus, e.g. in one containing modal operators or probabilistic concepts. (shrink)

This paper examines methodological issues raised by revealed preference theory in economics: particularly contemporary revealed preference theory. The paper has three goals. First, to make the case that revealed preference theory is a broad research program in choice theory—not a single theory—and understanding this diversity is essential to any methodological analysis of the program. Second, to explore some of the existing criticisms of revealed preference theory in a way that emphasizes how the effectiveness of the critique (...) depends on the particular version of revealed preference under consideration. Finally, three additional criticisms are presented that are aimed specifically at contemporary revealed preference theory. (shrink)

Language comprehension unfolds incrementally, requiring listeners to continually predict and revise interpretations. Comprehenders across very diverse languages show a consistent preference for agents, anticipating the agent (“the doer” of an action) more strongly than the patient (“the undergoer”). An unresolved question is how the preference develops in children given incomplete utterances and argument omission in their input. Here, we approach this question by quantifying the incremental predictability of semantic roles (agents vs. patients), probing specifically what kind of contextual (...) information impacts ease of learning. We use transcribed utterances from child‐directed speech in three languages, differing in critical conditions of word order and argument omission: Tagalog (verb‐initial), English (verb‐medial), and Turkish (verb‐final). To quantify incremental predictability at each position in the sentence, we use a computational model trained on naturalistic child‐directed speech, which is first validated against experimental data in each language. Our results show that agents are highly predictable irrespective of sentence position or language, requiring barely any contextual information. In contrast, patient prediction requires additional information, varying by language. These findings suggest that the assignment of agent roles in child‐directed speech is an easier task across typologically distinct languages, possibly reflecting the more general preference for agents outside language. Patients, by contrast, appear to be contextually induced roles that develop in ways that are largely shaped by the affordances of each language. (shrink)

The Mohists may have been the first consequentialists on earth. Their most important principles are that right action is what benefits the world and that the underlying outlook for benefiting the world is inclusive care, whereby each person receives equal consideration. The early Mohists are clearly objective-list consequentialists, whereby benefiting the world amounts to promoting the most basic goods. Stephens argues that the later Mohists shift to a preference-satisfaction consequentialism whereby benefiting the world amounts to promoting what happens to (...) please individual people. Stephens argues that while the direct texts are ambiguous between an objective-list interpretation and a preference-satisfaction interpretation, the latter better explains later Mohist engagement with opponents. I argue that the direct texts actually preclude Stephens’ preference-satisfaction interpretation, which moreover has the later Mohists concede an implausible amount to their opponents. (shrink)

Harry G. Frankfurt has presented a case of a counterfactual intervener CI with knowledge and power to control an agent so he will do A. He concludes that if the agent prefers to do A and there is no intervention by CI, the agent has acted of his own free will and is morally responsible for doing A, though he lacked an alternative possibility. I consider the consequences for freedom and moral responsibility of CI having a complete plan P for (...) all actions of an agent, Lucky, who luckily has preferences that accord with P, and I extend the argument to all citizens of a land, Luckyland, who are like Lucky. I argue the citizens of Luckyland have free will but lack moral responsibility because of the connection between moral responsibility, reactive attitudes and future action. Furthermore, the presence of CI and his plan P may allow free will but is incompatible with freedom of preference. Preference concerns alternatives excluded by CI. I argue that a special higher order preference for the preference structure, a power preference, ends the regress of higher order preference and explains the first order preference. Causal determinism is compatible with freedom of preference explained by a power preference when a power preference would also explain an alternative preference. The remoteness argument for incompatibility fails because of a lack of transitivity causal explanation. The power preference is the self-explained source of freedom of preference. That basic freedom may be limited by government knowledge of our preferences, even if, like Lucky, our preferences do not provoke intervention and we conform of our own free will. (shrink)

The behavior of individuals currently living will generally have long-term consequences that affect the well-being of those who will come to live in the future. Intergenerational interdependencies of this nature raise difficult moral issues because only the current generation is in a position to decide on actions that will determine the nature of the world in which future generations will live. Although most are willing to attach some weight to the interests of future generations, many would argue that it is (...) not necessary to treat these interests as equivalent to those of the current generation. A common approach in this context is to use a system of discounting to evaluate future benefits and harms. This paper assesses the logic of discounting drawing on the writings of economists and philosophers. Much of the economic literature concerns the choice of an appropriate social discount rate. The social discount rate can be taken to reflect beliefs about the rights of future generations, a subject that has been extensively debated in the phioosophic literature. The writings of both economists and philosophers concerned with the weight to attach to the interests of future generations are reviewed and evaluated in this paper and the implications for environmental policy are discussed. (shrink)

In this article, we study a minimal change approach to preference dynamics. We treat a set of preferences as a special kind of theory, and define minimal change preference contraction and revision operations in the spirit of the Alchourrón, Gärdenfors, and Makinson theory of belief revision. We characterise minimal contraction of preference sets by a set of postulates and prove a representation theorem. We also give a linear time algorithm which implements minimal contraction by a single (...) class='Hi'>preference. We then define minimal contraction by a set of preferences, and show that the problem of a minimal contraction by a set of preferences is NP-hard. (shrink)

This article discusses approaches to the problem of the number of preference orderings that can be constructed from a given set of alternatives. After briefly reviewing the prevalent approach to this problem, which involves determining a partitioning of the alternatives and then a permutation of the partitions, this article explains a recursive approach and shows it to have certain advantages over the partitioning one.

This study examined the influence of birdsong complexity (melodic and rhythmic) on the preferences of primarily older, White Americans and whether individual differences and acquired experience moderate this relationship. An anonymous, online survey presented recordings of 11 anonymous birdsongs followed by a series of questions. Respondents (N = 209) were unpaid volunteers, recruited from a variety of sources. Using a mixed model analysis, the study found a positive linear relationship between both forms of complexity and preference. The relationship between (...) rhythmic complexity and preference became curvilinear when birdwatching expertise was a moderator. Birdwatchers tended to show a greater preference for birdsong than non-birdwatchers over the entire range of rhythmic complexity, but particularly at the highest levels. Future research should focus on the types of information embedded within birdsongs and the ways in which they are interpreted by humans. (shrink)

We consider choice correspondences that assign a subset to every choice set of alternatives, where the total set of alternatives is an arbitrary finite or infinite set. We focus on the relations between several extensions of the condition of independence of irrelevant alternatives on one hand, and conditions on the revealed preference relation on sets, notably the weak axiom of revealed preference, on the other hand. We also establish the connection between the condition of independence of irrelevant alternatives (...) and so-called strong sets; the latter characterize a social choice correspondence satisfying independence of irrelevant alternatives. (shrink)

The topic of this paper is the semantic structure of belief reports of the form 'a believes that p'. it is argued that no existing theory of these sentences satisfactorily accounts for anaphoric relations linking expressions within the embedded complement sentence to expressions outside. a new account of belief reports is proposed which assigns to embedded expressions their normal semantic values but which also exploits frege's idea of using senses to explain the apparent failures of extensionality in the reports.

This article seeks to defend prioritarianism against a pair of challenges from Michael Otsuka and Alex Voorhoeve. Otsuka and Voorhoeve first argue that prioritarianism makes implausible recommendations in one-person cases under conditions of risk, as it fails to allow that it is reasonable to act to maximize expected utility, rather than expected weighted benefits, in such cases. I show that, in response, prioritarians can either reject Otsuka and Voorhoeve's claim, by means of appealing to a distinction between personal and impersonal (...) value, or alternatively they can harmlessly accommodate it, by means of appealing to the status of prioritarianism as a view about the moral value of outcomes, rather than as an account of all-things-considered reasonable action. Otsuka and Voorhoeve secondly claim that prioritarianism fails to explain a divergence in our considered moral judgement between one-person and many-person cases. I show that the prioritarian has two alternative, and independently plausible, lines of response to this charge, one more concessive and the other more unyielding. Hence, neither of Otsuka and Voorhoeve's challenges need seriously trouble the prioritarian. (shrink)

We introduce a simple generalization of Gardenfors and Makinson’s epistemic entrenchment called partial entrenchment. We show that preferential inference can be generated as the sceptical counterpart of an inference mechanism defined directly on partial entrenchment.

Fractal patterns offer one way to represent the rough complexity of the natural world. Whilst they dominate many of our visual experiences in nature, little large-scale perceptual research has been done to explore how we respond aesthetically to these patterns. Previous research (Taylor et al., 2011) suggests that the fractal patterns with mid-range fractal dimensions have universal aesthetic appeal. Perceptual and aesthetic responses to visual complexity have been more varied with findings suggesting both linear (Forsythe et al., 2011) and curvilinear (...) (Berlyne, 1970) relationships. Individual differences have been found to account for many of the differences we see in aesthetic responses but some, such as culture, have received little attention within the fractal and complexity research fields. This 2-study paper aims to test preference responses to fractal dimension and visual complexity, using a large cohort (N=443) of participants from around the world to allow universality claims to be tested. It explores the extent to which age, culture and gender can predict our preferences for fractally complex patterns. Following exploratory analysis that found strong correlations between fractal dimension and visual complexity, a series of linear mixed-effect models were implemented to explore if each of the individual variables could predict preference. The first tested a linear complexity model (likelihood of selecting the more complex image from the pair of images) and the second a mid-range fractal dimension model (likelihood of selecting an image within mid-range). Results show that individual differences can reliably predict preferences for complexity across culture, gender and age. However, in fitting with current findings the mid-range models show greater consistency in preference not mediated by gender, age or culture. This paper supports the established theory that the mid-range fractal patterns appear to be a universal construct underlying preference but also highlights the fragility of universal claims by demonstrating individual differences in preference for the interrelated concept of visual complexity. This highlights a current stalemate in the field of empirical aesthetics. (shrink)

This paper attempts to square libertarian principles with the reality of formal education by asking how far we should and can allow people to do as they wish in educational settings. The major focus is on children in schools, as the concept ‘childhood’ ipso facto implies restrictions on doing as one wishes, and schools as institutions entail inevitable constraints. Children by definition tend to enjoy stronger protection rights but weaker liberty rights than adults. A local preferential calculus is developed as (...) a guide for teachers, suggesting wishes should be granted where feasible and at least welfare neutral. In the case of teachers, employers set the parameters for the feasibility criterion but should also ensure at least welfare neutrality, while students in adult and higher education should be responsible for the feasibility and welfare outcomes of their own choices. (shrink)

This article proves that all complete preference structures where the strict preference relation (P) has no circuit admit a representation by intervals of the real line; the rule for deciding whether an interval is indifferent or preferred to another is less straightforward than for interval orders: strict preference is indeed compatible with a certain degree of overlapping of intervals, the allowed degree being specified by means of a so-called tolerance function.

The anti-Specker property, a constructive version of sequential compactness, is used to prove constructively that a pointwise continuous, order-dense preference relation on a compact metric space is uniformly sequentially continuous. It is then shown that Ishihara's principle BD-ℕ implies that a uniformly sequentially continuous, order-dense preference relation on a separable metric space is uniformly continuous. Converses of these two theorems are also proved.

Most of us have two strong intuitions (or sets of intuitions) in relation to fairness in health care systems that are funded by public money, whether through taxation or compulsory insurance. The first intuition is that such a system has to treat patients (and other users) fairly, equitably, impartially, justly and without discrimination. The second intuition is that doctors, nurses and other health care professionals are allowed to, and may even in some cases be obligated to give preference to (...) the interests of their particular patients or clients over the interests of other patients or clients of the system. These two intuitions are in potential conflict. One of the most obvious ways in which to ensure impartiality in a health care system is to require impartiality of all actors in the system, i.e. to give health care professionals a duty to treat everyone impartially and to deny them the ‘right’ to give their patients preferential treatment. And one of the possible side-effects of allowing individual health care professionals to give preference to ‘their clients’ is to create inequality in health care. This paper explores the conflict and proposes that it can be right to give preference to ‘your’ patients in certain circumstances. (shrink)

Ever since its first publication in 1970, Amartya Sen's paper “The Impossibility of a Paretian Liberal” has served as the starting point for almost all discussions of liberty in social choice theory. However, a number of people, myself included, have argued that Sen's theorem rests on a misleading characterization of liberty . In a recent paper, addressed to a philosophical audience, Sen has provided a careful defence of his theorem against this charge. I shall argue that this defence does not (...) work. (shrink)

Lonely hearts advertisements (LHA) published in Japan were examined in a comparative study on sexually dimorphic mate preference. I analyzed 944 LHA written by Japanese (730 by males and 214 by females) seeking short-term relationships and 780 LHA (577 by males and 203 by females) seeking long-term relationships. Some universal patterns of mate preference were confirmed and others were not. Female advertisers in both categories sought more traits than they offered; they also sought more traits than male advertisers. (...) Males tended to offer their financial and social status, and females tended to seek those traits. More females requested family commitment than males. While there was no sex difference in offering and seeking physical appearance and health, females tended to request photographs of their potential mates. Males were more likely than females to be willing to accept children from previous relationships, although there was no significant difference in refusing such children. More females seeking long-term mates requested family commitment than females seeking short-term mates. In both males and females, more advertisers seeking long-term mates offered family commitment than advertisers seeking short-term mates. Some predictions for contingent preference were also examined. One prediction confirmed was that females offering physical appearance and health sought more traits than those not doing so. However, males offering financial and social status did not make higher demands than those who did not, which does not support one prediction. (shrink)

A preference for animate entities over inanimate entities is commonly found in perception and language. In our corpus study based on a cross-cultural set of 331 comics from 81 countries, we asked whether animacy preference plays a role in the morphological marking of motion in the visual language(s) used in comics. We were interested in whether animates or inanimates are more or less marked (i.e., use pictorial cues to signal motion) when compared to each other, similarly to differential (...) marking modulated by animacy in grammars of many languages. We considered the animacy preference as the expectation that animates are moving in a directed way, while inanimates are not. We focused on motion lines (i.e., lines trailing behind a moving object) and circumfixing lines (i.e., lines surrounding a moving object) that indicate motion in comics, which are visual morphological markings that differ in their directedness: Motion lines are directional, while circumfixing lines are not. We found that inanimates are more marked by motion lines than animates in our data, while there is no difference between the two groups regarding circumfixing lines. These results persist across all global regions and styles of comics. Thus, similarly to spoken languages, visual morphology obeys what we call the mark the unexpected! principle, defined in the context of surprisal minimization: Inanimates need to be marked in order to signal that they are moving in a directed way, which is otherwise unexpected and of high surprisal. Animates are comparatively marked less because their directed movements are already expected and of low surprisal. As this principle persists across modalities and their diverse expressive systems, mark the unexpected! is a strong candidate for a cognitive universal. (shrink)

Using the Implicit Association Test, recent experiments have demonstrated a strong and automatic positive evaluation of White Americans and a relatively negative evaluation of African Americans. Interpretations of this finding as revealing pro-White attitudes rest critically on tests of alternative interpretations, the most obvious one being perceivers’ greater familiarity with stimuli representing White Americans. The reported experiment demonstrated that positive attributes were more strongly associated with White than Black Americans even when pictures of equally unfamiliar Black and White individuals were (...) used as stimuli and differences in stimulus familiarity were statistically controlled. This experiment indicates that automatic race associations captured by the IAT are not compromised by stimulus familiarity, which in turn strengthens the conclusion that the IAT measures automatic evaluative associations. © 2000 Academic Press. (shrink)

Research on culture would be enriched by studying the connection between gender and peer relations. Cultures vary in the roles, privileges, opportunities and rights that are ascribed to females and males. They are known to differ also in the degree to which females and males interact with each other. Although the preference for same-gender peers has been observed across multiple cultural contexts, the degree of this segregation between females and males varies. We argue that variability in the interactional divide (...) between females and males is an important cultural construct that is likely to account for diversity in developmental processes and outcomes. (shrink)

Objective: This study aimed to understand the dynamics of self-identification and racial preference in urban and rural primary school children in southern Peru, and to discern the underlying causes of discrimination and racism in these contexts. Materials and Methods: The research adopted a naturalistic paradigm with a qualitative approach and a case study design. Participants included 24 students from urban and rural educational institutions in the southern highlands of Peru. Data was collected using the "Doll Test" questionnaire, based on (...) the original "Doll Test" designed in the 1940s in the USA. Re-sults: The study revealed a concerning trend in students' perceptions of beauty related to the skin color of dolls. Stereotypes were evident in students' perceptions, associating the black doll with "bad" and the white doll with "good". A marked preference was identified for the blonde doll, but a majority identified with the black doll in terms of similarity. Most students anticipated an economically disadvantaged future for the black doll and a privileged one for the blonde doll. Discussion: The findings unveil the palpa-ble presence of racial stereotypes and prejudices in students' perceptions and preferences regarding skin color. This underscores the urgent need to promote a culture of inclusion and respect from childhood and the importance of implementing educational and cultur-al interventions to eradicate these stereotypes. (shrink)

This essay present a critical analysis of Hare's article 'Contrasting Methods in Environmental Planning' . It argues that Hare has drawn an important distinction between two 'methods' used in both urban and environmental planning, and that Hare is correct in the conclusion of his argument that one of these methods, 'the trial-design method', is superior to the other, 'the means-end method'. However, this paper presents a new argument in support of that conclusion. This new argument is important for two reasons. (...) First, it points to the existence of at least two different kinds of preference schedule. Second, it supports a type of decision making procedure to be used in 'multiple-client situations' different from the one envisioned by Hare. This procedure, oddly enough, resembles the procedures outlined by both Habermas and Rawls. However, it can be defended on recognisably utilitarian grounds. (shrink)

We consider scenarios where a group of agents wish to simplify a given abstract argumentation framework—specifying a set of arguments and the attacks between them—by eliminating cycles in the attack-relation on the basis of their preferences over arguments. They do so by first aggregating their individual preferences into a collective preference order and then removing any attacks involved in a cycle that go against that order. Our analysis integrates insights from formal argumentation and social choice theory. We obtain sweeping (...) impossibility results for essentially all standard methods of preference aggregation, showing that no Condorcet method and no positional scoring rule can uphold the fundamental principle expressing that views held by every single member of the group must be respected. But we also find that so-called representative-agent rules do offer this guarantee. (shrink)

Since Condorcet discovered the voting paradox in the simple majority rule, many scholars have tried to investigate conditions that yield “social-preference cycles”. The paradox can be extended to two main approaches. On the one hand, Kenneth Arrow developed a general framework of social choice theory; on the other hand, direct generalizations of the paradox were offered. The motivation and surface meaning of the two approaches are different, as are the assumed background conditions. In this paper, we investigate the relationship (...) between the two approaches by taking a close look at two works, Ferejohn and Fishburn and Schwartz. (shrink)

Experimental studies of speech production involving compensations for auditory and somatosensory perturbations and adaptation after training suggest that both types of sensory information are considered to plan and monitor speech production. Interestingly, individual sensory preferences have been observed in this context: subjects who compensate less for somatosensory perturbations compensate more for auditory perturbations, and \textit{vice versa}. We propose to integrate this sensory preference phenomenon in a model of speech motor planning using a probabilistic model in which speech units are (...) characterized both in auditory and somatosensory terms. Sensory preference is implemented in the model according to two approaches. In the first approach, which is often used in motor control models accounting for sensory integration, sensory preference is attributed to the relative precision (i.e., inverse of the variance) of the sensory characterization of the speech motor goals associated with phonological units (which are phonemes in the context of this paper). In the second, ``more original’’ variant, sensory preference is implemented by modulating the sensitivity of the comparison between the predicted sensory consequences of motor commands and the sensory characterizations of the phonemes. We present simulation results using these two variants, in the context of the adaptation to an auditory perturbation, implemented in a 2-dimensional biomechanical model of the tongue. Simulation results show that both variants lead to qualitatively similar results. Distinguishing them experimentally would require precise analyses of partial compensation patterns. However, the second proposed variant implements sensory preference without changing the sensory characterizations of the phonemes. This dissociates sensory preference and sensory characterizations of the phonemes, and makes the account of sensory preference more flexible. Indeed, in the second variant the sensory characterizations of the phonemes can remain stable, when sensory preference varies as a response to cognitive or attentional control. This opens new perspectives for capturing speech production variability associated with aging, disorders and speaking conditions. (shrink)