Recent research into the evolution of higher cognition has piqued an interest in the effect of natural selection on the ability of creatures to respond to their environment (behavioral plasticity). It is believed that environmental variation is required for plasticity to evolve in cases where the ability to be plastic is costly. We investigate one form of environmental variation: frequency dependent selection. Using tools in game theory, we investigate a few models of plasticity and outline the cases where selection would (...) be expected to maintain it. Ultimately we conclude that frequency dependent selection is likely insufficient to maintain plasticity given reasonable assumptions about its costs. This result is very similar to one aspect of the well-discussed Baldwin effect, where plasticity is first selected for and then later selected against. We show how in these models one would expect plasticity to grow in the population and then be later reduced. Ultimately we conclude that if one is to account for the evolution of behavioral plasticity in this way, one must appeal to a very particular sort of external environmental variation. (shrink)

It is generally thought that cognition evolved to help us navigate complex environments. Social interactions make up one part of a complex environment, and some have argued that social settings are crucial to the evolution of cognition. This article uses the methods of evolutionary game theory to investigate the effect of social interaction on the evolution of cognition broadly construed as strategic learning or plasticity. I delineate the conditions under which social interaction alone, apart from any additional external environmental variation, (...) can provide the selective pressure necessary for the initial evolution of learning. Furthermore, it is argued that in the context of social interactions we should notexpect traditional learners that ‘best-respond’ to dominate the population. Consequently, it may be important to consider non-traditional learners when modelling social evolution. 1 Introduction2 The Model3 Adapting to the Population3.1 Learning an equlibrium4 Adapting to Individuals4.1 Learning a best response and non-traditional learners5 Conclusion. (shrink)

We examine contemporary game-theoretic accounts of ownership as a convention. New results from dynamic networks complicate matters, suggesting that if ownership is conventional, it should not be as...

Signals regarding the behavior of others are an essential element of human moral systems and there are important evolutionary connections between language and large-scale cooperation. In particular, social communication may be required for the reputation tracking needed to stabilize indirect reciprocity. Additionally, scholars have suggested that the benefits of indirect reciprocity may have been important for the evolution of language and that social signals may have coevolved with large-scale cooperation. This paper investigates the possibility of such a coevolution. Using the (...) tools of evolutionary game theory, we present a model that incorporates primitive “moral signaling” into a simple setting of indirect reciprocity. This model reveals some potential difficulties for the evolution of “moral signals.” We find that it is possible for “moral signals” to evolve alongside indirect reciprocity, but without some external pressure aiding the evolution of a signaling system, such a coevolution is unlikely. (shrink)

The partial cooperation displayed by subjects in the Centipede Game deviates radically from the predictions of traditional game theory. Even standard, infinite population, evolutionary settings have failed to provide an explanation for this behavior. However, recent work in finite population evolutionary models has shown that such settings can produce radically different results from the standard models. This paper examines the evolution of partial cooperation in finite populations. The results reveal a new possible explanation that is not open to the standard (...) models and gives us reason to be cautious when employing these otherwise helpful idealizations. *Received January 2007; revised November 2007. †To contact the author, please write to: Department of Logic and Philosophy of Science, University of California, 3151 Social Science Plaza A, Irvine, CA 92697-5100; e-mail: [email protected]. (shrink)

Recent models using simple signaling games provide a theoretical setting for investigating the evolutionary connection between signaling and behavioral plasticity. These models have shown that plasticity is typically eliminated in common-interest signaling games. In many real cases of signaling, however, interests do not align. Here, I present a model of the evolution of plasticity in signaling games and consider games of common, opposed, and partially aligned interests. I find that the setting of partial common interest is most conducive to the (...) evolution of plasticity. Plastic individuals succeed by learning when to deceive others and when to trust others’ signals. (shrink)

Recent research into the evolution of higher cognition has piqued an interest in the effect of natural selection on the ability of creatures to respond to their environment. It is believed that environmental variation is required for plasticity to evolve in cases where the ability to be plastic is costly. We investigate one form of environmental variation: frequency dependent selection. Using tools in game theory, we investigate a few models of plasticity and outline the cases where selection would be expected (...) to maintain it. Ultimately we conclude that frequency dependent selection is likely insuffcient to maintain plasticity given reasonable assumptions about its costs. This result is very similar to one aspect of the well-discussed Baldwin effect, where plasticity is first selected for and then later selected against. We show how in these models one would expect plasticity to grow in the population and then be later reduced. Ultimately we conclude that if one is to account for the evolution of behavioral plasticity in this way, one must appeal to a very particular sort of external environmental variation. (shrink)

Climate negotiations under the United Nations Framework Convention on Climate Change have so far failed to achieve a robust international agreement to reduce greenhouse gas emissions. Game theory has been used to investigate possible climate negotiation solutions and strategies for accomplishing them. Negotiations have been primarily modelled as public goods games such as the Prisoner’s Dilemma, though coordination games or games of conflict have also been used. Many of these models have solutions, in the form of equilibria, corresponding to possible (...) positive outcomes—that is, agreements with the requisite emissions reduction commitments. Other work on large-scale social dilemmas suggests that it should be possible to resolve the climate problem. It therefore seems that equilibrium selection may be a barrier to successful negotiations. Here we use an N-player bargaining game in an agent-based model with learning dynamics to examine the past failures of and future prospects for a robust international climate agreement. The model suggests reasons why the desirable solutions identified in previous game-theoretic models have not yet been accomplished in practice and what mechanisms might be used to achieve these solutions. (shrink)

Transfer of information between senders and receivers, of one kind or another, is essential to all life. David Lewis introduced a game theoretic model of the simplest case, where one sender and one receiver have pure common interest. How hard or easy is it for evolution to achieve information transfer in Lewis signaling?. The answers involve surprising subtleties. We discuss some if these in terms of evolutionary dynamics in both finite and infinite populations, with and without mutation.

In recent years, many scholars have suggested that the Baldwin effect may play an important role in the evolution of language. However, the Baldwin effect is a multifaceted and controversial process and the assessment of its connection with language is difficult without a formal model. This paper provides a first step in this direction. We examine a game-theoretic model of the interaction between plasticity and evolution in the context of a simple language game. Additionally, we describe three distinct aspects of (...) the Baldwin effect: the Simpson– Baldwin effect, the Baldwin expediting effect and the Baldwin optimizing effect. We find that a simple model of the evolution of language lends theoretical plausibility to the existence of the Simpson– Baldwin and the Baldwin optimizing effects in this arena, but not the Baldwin expediting effect. (shrink)

There are circumstances in which we want to predict a series of interrelated events. Faced with such a prediction task, it is natural to consider logically inconsistent predictions to be irrational. However, it is possible to find cases where an inconsistent prediction has higher expected accuracy than any consistent prediction. Predicting tournaments in sports provides a striking example of such a case and I argue that logical consistency should not be a norm of rational predictions in these situations.

Sports tournaments provide a procedure for producing a champion and ranking the contestants based on game results. As such, tournaments mirror aggregation methods in social choice theory, where diverse individual preferences are put together to form an overall social preference. This connection allows us a novel way of conceptualizing sports tournaments, their results, and significance. I argue that there are genuine intransitive dominance relationships in sports, that social choice theory provides a framework for understanding rankings in such situations and that (...) these considerations provide a new reason to endorse championship pluralism. (shrink)

How is the human tendency and ability to collaborate acquired and how did it evolve? This paper explores the ontogeny and evolution of human collaboration using a combination of theoretical and empirical resources. We present a game theoretic model of the evolution of learning in the Stag Hunt game, which predicts the evolution of a built-in cooperative bias. We then survey recent empirical results on the ontogeny of collaboration in humans, which suggest the ability to collaborate is developmentally stable across (...) a range of environments. Lastly, we use an account of innateness developed by Ariew (Philos Sci 63:S19–S27, 1996) and Sober (Routledge encyclopedia of philosophy. Routledge, London, pp 794–797, 1998) to assess the extent that (1) the model predicts the fixation of innate collaboration and (2) the empirical studies show a human’s ability to collaborate to be innate. (shrink)

We consider the Stag Hunt in terms of Maynard Smith’s famous Haystack model. In the Stag Hunt, contrary to the Prisoner’s Dilemma, there is a cooperative equilibrium besides the equilibrium where every player defects. This implies that in the Haystack model, where a population is partitioned into groups, groups playing the cooperative equilibrium tend to grow faster than those at the non-cooperative equilibrium. We determine under what conditions this leads to the takeover of the population by cooperators. Moreover, we compare (...) our results to the case of an unstructured population and to the case of the Prisoner’s Dilemma. Finally, we point to some implications our findings have for three distinct ideas: Ken Binmore’s group selection argument in favor of the evolution of efficient social contracts, Sewall Wright’s Shifting Balance theory, and the equilibrium selection problem of game theory. (shrink)

We investigate how changes to the payoffs of cooperative behavior affect the evolutionary dynamics. Paradoxically, the larger the benefits of cooperation, the less likely it is to evolve. This holds true even in cases where cooperation is strictly dominant. Increasing the benefits from prosocial behavior has two effects: first, in some circumstances it promotes the evolution of spite; and second, it can decrease the strength of selection leading to nearly neutral evolution of strategies. In light of these results we must (...) reevaluate standard philosophical perspectives on the evolution of cooperation and morality. (shrink)

Recent studies in the evolution of cooperation have shifted focus from altruistic to mutualistic cooperation. This change in focus is purported to reveal new explanations for the evolution of prosocial behavior. We argue that the common classification scheme for social behavior used to distinguish between altruistic and mutualistic cooperation is flawed because it fails to take into account dynamically relevant game-theoretic features. This leads some arguments about the evolution of cooperation to conflate dynamical scenarios that differ regarding the basic conditions (...) on the emergence and maintenance of cooperation. We use the tools of evolutionary game theory to increase the resolution of the classification scheme and analyze what evolutionary inferences classifying social behavior can license. (shrink)

Recognition of and responsiveness to the behavioral dispositions of others are key features of moral systems for facilitating social cooperation and the mediation of punishment. Here we investigate the coevolutionary possibilities of recognition and conditional social behavior with respect to both altruism and spite. Using two evolutionary models, we find that recognition abilities can support both spite and altruism but that some can only coevolve with spite. These results show that it is essential to consider harmful social behaviors as both (...) a product of and an influence on the core features of our moral systems. (shrink)

Spite (in the biological or evolutionary sense) is behavior that harms others at a cost to the actor. The presence of spite in human and animal populations presents an evolutionary puzzle. Recent work has suggested small populations and pre-play signaling can have a significant effect on the evolution of spite. Here, we use computational methods to explore these factors in fluctuating populations that may go extinct. We find that the presence of spite can make a population significantly more likely to (...) go extinct, but that this does not preclude the possibility of spite reliably evolving. Additionally, we find that the stochastic effects of small fluctuating populations allow for the evolution and predominance of signal-mediated conditional spite across a wide range of conditions. These results suggest that directed harm, even if costly, can play a significant early role in the evolution of social behaviors and this provides a possible origin for punishment. (shrink)

Joint attention occurs when two (or more) individuals attend together to some object. It has been identified by psychologists as an early form of our joint engagement, and is thought to provide us with an understanding of other minds that is basic in that sophisticated conceptual resources are not involved. Accordingly, it has also attracted the interest of philosophers. Moreover, a very recent trend in the psychological and philosophical literature on joint attention consists of developing the suggestion that it holds (...) partially in virtue of communication: it is because we share our thoughts or feelings about an object that our individual attention becomes joint. This paper unpacks the communicative suggestion in a way that accounts for joint attention's basicness. (shrink)

Companies are increasingly singing up to a range of corporate responsibility codes and other voluntary commitments. Using evidence from the mining industry’s experience with the Australian Greenhouse Challenge, the Minerals Council’s Code for Environmental Management and the ISO14001 Specification for Environmental Management Systems, this article examines whether the outcomes from the adoption of multiple voluntary approaches differ from those outcomes that would be expected if each voluntary approach was adopted in isolation. The article demonstrates that it is feasible for companies (...) to participate in multiple voluntary approaches and to derive benefits such as reduced transaction costs, improved data quality and enhanced implementation. However, there is limited evidence that the voluntary approaches in combination have enhanced environmental performance, economic efficiency, innovation or competitiveness beyond that which would be achieved from each of the approaches in isolation. Furthermore, many of the limitations of voluntary approaches (in particular, environmental performance, acceptability to NGOs) remain. (shrink)

This chapter presents Connecting Scotland as a case study, highlighting the correlation between current research into digital inequality to identify those most in need of support, and the practical application of work to address this at scale through third sector organisations working directly with those at greatest risk of digital exclusion. The chapter also considers the vital role of the ‘trusted intermediary’ acting as digital champion for device recipients, and, using the data gathered via sessions with hundreds of frontline staff, (...) explore immediate challenges and opportunities for engagement. It will also reflect on the application of research in the creation of training and resources to support the programme. Finally, the chapter will reflect on some of the many lessons learned, and consider implications for both policy-makers and fieldworkers seeking to address digital inequality at scale. All three authors were involved extensively in the development and delivery of this work. (shrink)

Shadmehr and Ahmed cogently argue that vigor of appetitive movements is positively correlated with their value, and that value can therefore be inferred by measuring vigor. Here, we highlight three points to consider when interpreting this account: (1) The correlation between vigor and value is not obligatory, (2) the vigor effect also arises in frameworks other than optimal foraging, and (3) the term vigor can be misinterpreted, thereby affecting rigor.

An extensive body of research details the lack of discussion and collaboration occurring in K12 classrooms in the United States. This study seeks to examine this issue by exploring the associations preservice social studies teachers make between the underlying principles of democratic education and the use of discussion in the social studies classroom. The present qualitative multi-case study uses a collection of field-based data and university coursework to examine how six preservice social studies teachers at a large southeastern university conceptualize (...) and value discussion as a pedagogical approach. Findings suggest that preservice social studies teachers do see value in the use of discussion and associate it with broad themes of democratic education. However, because their understandings of democratic education are often vague and unclear, the associations being made often do not reflect the work being conducted within academia in regards to social justice. (shrink)

This paper explains how an assertion may be understood despite there being nothing said or meant by the assertion. That such understanding is possible is revealed by cases of the so-called ``felicitous underspecification'' of demonstratives: cases where there is understanding of an assertion containing a demonstrative despite the interlocutors not settling on one or another object as the one the speaker is talking about (King 2014a, 2017, 2021). I begin by showing how Stalnaker's ([1978] 1999) well-known pragmatic principles adequately permit (...) and constrain the felicitous underspecification of demonstratives. I then establish a connection between the satisfaction of Stalnaker's principles and understanding, and show how that connection sheds further light on the relevant cases. After developing and motivating my proposal, I address some objections to it, then briefly discuss the felicitous underspecification of expressions other than demonstratives alongside contrasting my proposal with a similar one from Bowker (2015, 2019) that concerns definite descriptions. (shrink)

Both advocates and opponents of the animalist view that we are fundamentally biological organisms have typically assumed that animalism is incompatible with intuitive verdicts about cerebrum isolation and transplantation. It is argued here that this assumption is a mistake. Animalism, developed in a natural way, in fact strongly supports these intuitive verdicts. The availability of this attractive resolution of a central puzzle in the personal identity debate has been obscured by a range of factors, including the prevalence in contemporary metaphysics (...) of a certain conception of the nature of organisms. I end by explaining how the animalist can use intuitive verdicts, usually thought to present a difficulty for the view, as positive evidence for claims about the persistence conditions of the relevant kind of organism. (shrink)

In this paper, I explore the relationship between naturalism and transcendental idealism in Fichte. I conclude that Fichte is a near-naturalist, akin to Baker, Lynne Rudder (2017). “Naturalism and the idea of nature,” Philosophy 92 (3): 333–349. A near-naturalist is one whose position looks akin to the naturalist in some ways but the near-naturalist can radically differ in metaphilosophical orientation and substantial commitment. This paper is composed of three sections. In the first, I outline briefly what I take transcendental idealism (...) to be, as well as some differences in types of naturalism, and how this maps on to Fichte. In the second, I give an exegesis of Fichte’s key arguments in the Later Jena period, which are important for the question of his relationship to naturalism. In the third, I continue the exegesis with a discussion of Fichte’s conception of God, and conclude that these arguments support a near-naturalist reading of Fichte. (shrink)

This multi-case study explores the impact of cooperating teachers (CTs) on the autonomous pedagogical practices of preservice social studies teachers at a large southeastern university. The study examines participants’ written reflections, social studies teaching philosophies, lesson plans, and interview transcripts to identify how field placements and, more specifically, cooperating teachers directly influence the autonomous decision-making practices of student teachers (STs). The author will discuss the socialization of the participants and the role of the CTs in both preventing and promoting the (...) autonomous practices of the STs as they attempted to fulfill their identified aims of education. The case will be made for a revision of field experiences to promote teacher autonomy through better reflection on the part of STs. (shrink)

abstract: I provide a novel interpretation of Aristotle's account of the unity of soul, treating it as resolving the apparent incompatibility of the existence of psychic parts and the soul's status as a unifying form. This incompatibility, I contend, rests on a problematic assumption: mereological actualism, or the claim that parts are actually distinct and prior to the whole. Aristotle successfully undermines actualism and formulates an alternative conception of parthood within De Anima 's figure-soul analogy. As triangles are only potentially (...) present within quadrilaterals, so lower psychic parts are potential parts of higher souls. This picture treats a soul not as a mere aggregate of capacities, but as essentially unified and prior to its parts. Finally, I argue that this picture can be illuminated and must be read against the background of his hylomorphic account of the unity of form given in Metaphysics H.6. (shrink)

The implications of commonalities in the contributions of five key thinkers in twentieth century phenomenology are discussed in relation to both original aims and contemporary projects. It is argued that, contrary to the claims of Husserl, phenomenology can only operate as hermeneutic phenomenology. Hermeneutics arose within German idealism. It began with Friedrich Ast and Heinrich Schleiermacher and was further developed by, among others, Wilhelm Dilthey and Martin Heidegger. Hermeneutics claims that current understanding is created on the basis of the prior (...) understanding taken to any new situation, in that what is initially understood or believed determines the direction and scope for inquiry or action. Subsequent action and conclustions are similarly based on what has been previously understood and believed. As a consequence, however, what may, in some cases, result is the confirmation of prior inaccurate understanding. For these reasons, it is important to be clear about how initial understandings are formed and how they inform a discipline, be it the Husserlian phenomenology of intentionality or any empirical phenomenological approach. Indo-Pacific Journal of Phenomenology , Volume 8, Edition 1 May 2008. (shrink)

“I am only what I make myself to be”, Fichte tells us. In this paper, I outline Fichte’s views on sex, marriage and gender, with two aims. Firstly, to elucidate an aspect of his moral theory which has received little attention, and secondly to argue that Fichte’s distinctive stance on selfhood, freedom, and normativity lead to a revisionary account of gender expression and identity, where people can freely carve out their own identity, irrespective of “nature”. In this paper, I therefore (...) outline Fichte’s own views, highlighting what I see as a tension in the texts between essentialism and antiessentialism about gender, before reconstructing a neo-Fichtean view which foregrounds the anti-essentialist aspect. (shrink)

The Law of Set-off has established itself as a leading authority on its subject. This is a developing area of law and the fourth edition brings the book fully up to date with the latest case law since the third edition was published in 2003. Including coverage of Commonwealth decisions, this is the most thorough work on Set-Off for legal practitioners. New coverage includes analysis of Secretary of State for Trade and Industry v Frid in relation to insolvency set-off, Re (...) SSSL Realisations Ltd in relation to the rule in Cherry v Boultbee, Muscat v Smith in relation to equitable set-off, and in Australia, International Air Transport Association v Ansett Australia Holdings Ltd in relation to the "British Eagle" principle. The book provides an authoritative commentary on the principles governing the law of set-off and is an essential purchase for banking, finance, and insolvency lawyers world-wide. (shrink)

A formal and idealised understanding of intentionality as a mental process is a central topic within the classical Husserlian phenomenological analysis of consciousness. This paper does not define Husserl’s stance, because that has been achieved elsewhere (Kern, 1977, 1986, 1988; Kern & Marbach, 2001; Marbach, 1988, 1993, 2005; Owen, 2006; Zahavi, 2003). This paper shows how intentionality informs therapy theory and practice. Husserl’s ideas are taken to the psychotherapy relationship in order to explain what it means for consciousness to have (...) intentionality in various ways. The role of intentionality in psychopathology and its treatment within cognitive behavioural therapy is explained as a way of showing how understanding intentionality creates a medum for the delivery of care. Indo-Pacific Journal of Phenomenology , Volume 7, Edition 1 May 2007. (shrink)

What does our naïve conception of a conscious subject demand of the nature of conscious beings? In a series of recent papers David Barnett has argued that a range of powerful intuitions in the philosophy of mind are best explained by the hypothesis that our naïve conception imposes a requirement of mereological simplicity on the nature of conscious beings. It is argued here that there is a much more plausible explanation of the intuitions in question. Our naïve conception of a (...) conscious subject imposes a requirement of topological integrity. (shrink)

Medicine today, as both art and science, embodies a split personality. The ensuing tension—between individualized consideration, experience, and judgment on the one hand, and standardization, objective evidence, and guidelines on the other—plays out in the simultaneous aspirations of the medical humanities and evidence-based medicine, and in a host of other telling terms and movements. This is not a new tension, however. We turn in this paper to the critical but complex history of the term “personal equation” as both reflective and (...) generative of this tension on both sides of the Atlantic during a formative period in medicine from the mid-19th through the mid-20th centuries. The term was featured in almost every... (shrink)

A number of arguments purport to show that quantum field theory cannot be given an interpretation in terms of localizable particles. We show, in light of such arguments, that the classical ħ→0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\hbar \rightarrow 0$$\end{document} limit can aid our understanding of the particle content of quantum field theories. In particular, we demonstrate that for the massive Klein–Gordon field, the classical limits of number operators can be understood to encode local information about particles (...) in the corresponding classical field theory. (shrink)