The effects of striatal dopamine (DA) on behavior have been widely investigated over the past decades, with “phasic” burst firings considered as the key expression of a reward prediction error responsible for reinforcement learning. Less well studied is “tonic” DA, where putative functions include the idea that it is a regulator of vigor, incentive salience, disposition to exert an effort and a modulator of approach strategies. We present a model combining tonic and phasic DA to show how different outflows triggered (...) by either intrinsically or extrinsically motivating stimuli dynamically affect the basal ganglia by impacting on a selection process this system performs on its cortical input. The model, which has been tested on the simulated humanoid robot iCub interacting with a mechatronic board, shows the putative functions ascribed to DA emerging from the combination of a standard computational mechanism coupled to a differential sensitivity to the presence of DA across the striatum. (shrink)

Perception and action are tightly coupled. However, there is still little recognition of how individual motor constraints impact perception in everyday life. Here we asked whether and how the motor slowing that accompanies aging influences the sense of visual speed. Ninety-four participants aged between 18 and 90 judged the natural speed of video clips reproducing real human or physical motion. They also performed a finger tapping task and a visual search task, which estimated their motor speed and visuospatial attention speed, (...) respectively. Remarkably, aged people judged videos to be too slow, as compared to younger people: the Point of Subjective Equality, which estimated the speed bias in the SoS task, was +4% in young adults, +12% in old adults and +16% in elders. On average, PSE increased with age at a rate of 0.2% per year, with perceptual precision, adjustment rate, and completion time progressively worsening. Crucially, low motor speed, but not low attentional speed, turned out to be the key predictor of video speed underestimation. These findings suggest the existence of a counterintuitive compensatory coupling between action and perception in judging dynamic scenes, an effect that becomes particularly germane during aging. (shrink)

Research on elders’ acceptance of virtual technologies is much needed. Here we studied the user experience of elders (N = 10, mean age = 88.2 years) during virtual biking, an exergame where participants pedal on a cycle ergometer and wear a Head-Mounted Display that provides them an immersive experience of a bike ride. We tested the effects of augmented gaze on user experience. Augmented gaze is a condition in which horizontal head turns yield amplified visual shifts, which is assumed to (...) facilitate visual exploration. User experience was measured by asking participants to rate satisfaction, motivation, sense of presence and sense of safety. We found a very good acceptance of virtual biking and no signs of negative effects of augmented gaze. These preliminary observations suggest that augmented gaze may be a viable optimization of elders’ experience with certain virtual reality applications. (shrink)

Die fünf Bände enthalten die Hauptvorträge und eingeladene Beiträge der panels des X. Internationalen Kant-Kongresses, der 2005 in Sao Paolo stattfand.

We ordinarily believe that the inhabitants of the world - including ourselves - persist over time. Such an idea, however, has puzzled philosophers for centuries. How can we change and still be the same? More specifically, is there any constitutive condition of our identity over time? And if so, does this condition involve mental aspects, physical aspects, or something else? Or is rather personal identity primitive and unanalyzable, so that our persistence is nothing but a brute fact? This volume is (...) a collection of new essays from leading figures in the field analyzing the persistence of persons and the criteria of personal identity over time. It presents an extensive discussion of the most relevant views on personal identity in contemporary metaphysics and provides new treatments of the constitutive conditions of personal persistence. (shrink)

In a recent paper, Cumpa : 319–324, 2014) argues that a scientific turn in metaphysics requires the acceptance of a materialist criterion of fundamentality, according to which the most fundamental metaphysical category is the one that provides us with a reconciliation of the ordinary world and the physical universe. He concludes that the dominant category of substance cannot be the most fundamental category, for it does not satisfy this criterion of fundamentality. The most fundamental category is instead the category of (...) fact. Although convincing, the defense of factualism over substantialism offered by Cumpa takes into account the case of classical physics without considering the physical universe of quantum mechanics. My aim in this paper is to offer a completion to Cumpa’s factualist approach. To achieve my aim, I show that substances cannot provide a satisfactory account of the relationship between the ordinary world and the physical universe even in the case of quantum mechanics, whereas a factualist approach does. (shrink)

We discuss models that attempt to provide an explanation for the violation of Bell inequalities at a distance in terms of hidden influences. These models reproduce the quantum correlations in most situations, but are restricted to produce local correlations in some configurations. The argument presented in (Bancal et al. Nat Phys 8:867, 2012) applies to all of these models, which can thus be proved to allow for faster-than-light communication. In other words, the signalling character of these models cannot remain hidden.

Humanity is threatened by global risks that cross borders and national institutions in a way that has never been experienced before. Disasters, far from being purely natural phenomena, constitute the greatest danger in a context of political, social and scientific uncertainty. A new risk-based governance appears, ranging from the introduction of problematic exceptional measures and an increased vulnerability and inequality in risk exposure. This proposal aims to deepen the analysis of the relationship between law, politics and catastrophe as the focal (...) point of the evolution of risk prevention and management and its significance for the transformations of our understanding of democracy. The research proposes to engage catastrophes by conceiving them as powerful amplifiers and epiphanies of injustices, assuming that the role of the state should be inserted into a wider reading that must include the problem of unequal distribution of risks. (shrink)

Quantum physics is often perceived as a weird and abstract theory, which physicists must use in order to make correct predictions. But many recent experiments have shown that the weirdness of the theory simply mirrors the weirdness of phenomena: it is Nature itself, and not only our description of it, that behaves in an astonishing way. This book selects those, among these typical quantum phenomena, whose rigorous description requires neither the formalism, nor an important background in physics.

Quantum physics is often perceived as a weird and abstract theory, which physicists must use in order to make correct predictions. But many recent experiments have shown that the weirdness of the theory simply mirrors the weirdness of phenomena: it is Nature itself, and not only our description of it, that behaves in an astonishing way. This book selects those, among these typical quantum phenomena, whose rigorous description requires neither the formalism, nor an important background in physics.The first part of (...) the book deals with the phenomenon of single-particle interference, covering the historical questions of wave-particle duality, objective randomness and the boundary between the quantum and the classical world, but also the recent idea of quantum cryptography. The second part introduces the modern theme of entanglement, by presenting two-particle interference phenomena and discussing Bell's inequalities. A concise review of the main interpretations of quantum physics is provided. (shrink)

Abstract:There is a storied history of Native and Indigenous feminisms on Turtle Island (North America). We are fortunate that many of those stories birthed from an ancestral tradition of storytelling and survivance were captured in the canonical feminist anthology This Bridge Called My Back: Writings of Radical Women of Color. In celebration and commemoration of 40 years since This Bridge was first published we visit with three of the books original Native and Indigenous contributors–Chrystos, Max Wolf Valerio, and Jo (...) Carrillo–to recount old as well as new stories as they explore what Native and Indigenous feminisms mean to them and their continued work for Indigenous visibility. The conversation provides a unique intergenerational vision for conceptualizing contemporary Native and Indigenous feminisms all the while building upon the legacy and path set forth by amazing Native and Indigenous women trailblazers. (shrink)

Human beings possess external stores in which they put all sorts of goods to use them at some later time. In this paper we investigate this typically human adaptation using agent-based simulations. We show that the use of external stores explains many aspects of human life, allowing the agents to reduce their dependence on both the environment and the current state of their body and to be more efficient in extracting the energy contained in the environment. We analyse the spatial (...) behaviour of agents with external stores located in specific positions of the environment and we find that these agents tend to develop a sedentary life. We discuss how stores can be at the origin of many human mental and social phenomena such as the acquisition of a more extended temporal perspective, specialisation in producing different types of goods, and exchange of goods. (shrink)

Human beings possess external stores in which they put all sorts of goods to use them at some later time. In this paper we investigate this typically human adaptation using agent-based simulations. We show that the use of external stores explains many aspects of human life, allowing the agents to reduce their dependence on both the environment and the current state of their body and to be more efficient in extracting the energy contained in the environment. We analyse the spatial (...) behaviour of agents with external stores located in specific positions of the environment and we find that these agents tend to develop a sedentary life. We discuss how stores can be at the origin of many human mental and social phenomena such as the acquisition of a more extended temporal perspective, specialisation in producing different types of goods, and exchange of goods. (shrink)

Human beings possess external stores in which they put all sorts of goods to use them at some later time. In this paper we investigate this typically human adaptation using agent-based simulations. We show that the use of external stores explains many aspects of human life, allowing the agents to reduce their dependence on both the environment and the current state of their body and to be more efficient in extracting the energy contained in the environment. We analyse the spatial (...) behaviour of agents with external stores located in specific positions of the environment and we find that these agents tend to develop a sedentary life. We discuss how stores can be at the origin of many human mental and social phenomena such as the acquisition of a more extended temporal perspective, specialisation in producing different types of goods, and exchange of goods. (shrink)

POSSIBILIDADE JURÍDICA DE INSTITUIÇÃO DE NORMAS PENAIS INCRIMINADORAS PELA VIA DOS TRATADOS INTERNACIONAIS.

My aim in this paper is to discuss the logical form of exemplification. In order to achieve this goal, I analyze three views on the logical form of exemplification, namely, Gustav Bergmann's logical realism, Wilfrid Sellars's meta-linguistic expressivism, and Javier Cumpa's logical eliminativism. I start by examining the account advanced by Bergmann in his 1960 essay "Ineffability, Ontology, and Method," according to which the logical form of exemplification is represented by the juxtaposition of logical signs in a sentence. Then I (...) consider two alternatives to Bergmann's realism, namely, Sellars's meta-linguistic expressivism, according to which exemplification is a quasi-semantical relation that is accounted for at a meta-linguistic level; and Cumpa's molecular theory of exemplification—which I will call logical eliminativism—according to which exemplification is an eliminable constituent of facts. I conclude that neither the account advanced by Sellars nor the one provided by Cumpa is preferable to Bergmann's account of the logical form of exemplification, while offering a defense of the latter. (shrink)

Multiple selves is a conventional assumption in behavioural welfare economics for modelling intrapersonal well-being. Yet an important question is which self has normative authority over others. In this paper, we advance an argument for what we call the ‘ontological approach’ to personal identity in behavioural welfare economics. According to this approach, ethical questions – such as which preference should be granted normative authority over another – can be informed by the ontological criterion of personal persistence, which aims at determining what (...) it takes for an individual to persist from one time to another. (shrink)

This contribution aims at discussing constitutional democracy in the age of populisms, by explaining how populist movements oppose liberal-democratic constitutionalism and by presenting the thesis of a so-called ‘populist constitutionalism’, as proposed by Mark Tushnet. In the first section, a general and analytic exploration of populist phenomena will be drawn, by focusing on the so-called thesis of a ‘populist’ constitutionalism. In the second part, Tushnet’s arguments for a populist constitutionalism will be presented, through the analysis of his two main contributions: (...) Taking the Constitution Away from the Courts, in which Tushnet develops his critique of legal constitutionalism and judicial review as an undemocratic power by unelected justices, and Authoritarian Constitutionalism, a recent article in which Tushnet distinguishes between ‘authoritarian’ and ‘populist’ definitions of constitutionalism. In conclusion, such arguments will be discussed, by proposing a critical response to Tushnet’s position and presenting some risks of a majoritarian and populist constitutional democracy. (shrink)

This contribution aims at discussing constitutional democracy in the age of populisms, by explaining how populist movements oppose liberal-democratic constitutionalism and by presenting the thesis of a so-called ‘populist constitutionalism’, as proposed by Mark Tushnet. In the first section, a general and analytic exploration of populist phenomena will be drawn, by focusing on the so-called thesis of a ‘populist’ constitutionalism. In the second part, Tushnet’s arguments for a populist constitutionalism will be presented, through the analysis of his two main contributions: (...) Taking the Constitution Away from the Courts, in which Tushnet develops his critique of legal constitutionalism and judicial review as an undemocratic power by unelected justices, and Authoritarian Constitutionalism, a recent article in which Tushnet distinguishes between ‘authoritarian’ and ‘populist’ definitions of constitutionalism. In conclusion, such arguments will be discussed, by proposing a critical response to Tushnet’s position and presenting some risks of a majoritarian and populist constitutional democracy. (shrink)

This book offers intriguing philosophical inquiries into biotechnological art and the life sciences, addressing their convergences as well as their epistemic and functional divergences. Rooted on a thorough understanding of the history of philosophy, this work builds on critical and ontological thought to interpret the concept of life that underscores first-hand dealings with matter and experimentation. The book breaks new ground on the issue of animality and delivers fresh posthumanist perspectives on the topics addressed. The authors embark on a deep (...) ontological probe of the concept of medium as communication-bridging and life-bearing. They also take on the concept of performativity as biotechnological art. The book includes concrete, well-documented case studies and shows how certain narratives and practices directly impact ideas surrounding science and technologies. It will interest philosophers in art and technology, aesthetics, ontology, and the life sciences. It will also engage art practitioners in art and science, curators and researchers. (shrink)

The renewed interest on political realism can offer a new reading of the traditional dichotomy between normative and realist conception of constitutionalism. The purpose of this article is to analyse this renewed discussion, especially by focusing on the relationship between “political realism” and “political constitutionalism,” in the light of some theorists and authors—such as Richard Bellamy and Jeremy Waldron. After a brief introduction in which political realism will be discussed, especially through Bernard Williams’ reinterpretation, the article proposes a rereading of (...) democratic constitutionalism from the classical dichotomy between normativism and realism in political theory. The focus will be set on three key issues: 1. Richard Bellamy’s constitutional theory in a realist perspective; 2. An insight of legal constitutionalism under a normative banner; 3. A brief conclusion in which the risks of a majoritarian and populist constitutionalism will be discussed. (shrink)

In his tale entitled The Nameless City, Howard Phillips Lovecraft includes unspecified «paragraphs from the apocryphal nightmares of Damascius» among the «fragments» of the «cherished treasury of daemoniac lore» of the protagonist In the present essay, I suggest that there is a connection between this unusual reference and a note in the writer’s Commonplace Book, which refers to the notice by Photius on a lost work by Damascius that nowdays is generally referred to as Paradoxa and assumed to consist of (...) a variegated collection of extraordinary stories and facts. I, therefore, delineate a general presentation of the testimony by the Byzantine Patriarch, upon which I attempt to bring into focus the motivations that led the Providence to make the writer insert the name of Damascius in the fantastic plot of his story. (shrink)