Common methods for analysing response time (RT) tasks, frequently used across different disciplines of psychology, suffer from a number of limitations such as the failure to directly measure the underlying latent processes of interest and the inability to take into account the uncertainty associated with each individual's point estimate of performance. Here, we discuss a Bayesian hierarchical diffusion model and apply it to RT data. This model allows researchers to decompose performance into meaningful psychological processes and to account optimally for (...) individual differences and commonalities, even with relatively sparse data. We highlight the advantages of the Bayesian hierarchical diffusion model decomposition by applying it to performance on Approach–Avoidance Tasks, widely used in the emotion and psychopathology literature. Model fits for two experimental data-sets demonstrate that the model performs well. The Bayesian hierarchical diffusion model overcomes important limitations of current analysis procedures and provides deeper insight in latent psychological processes of interest. (shrink)

In this commentary, we assess the propositional approach to associative learning not only in terms of veridicality and falsifiability, but also in heuristic value. We remark that it has furthered our knowledge and understanding of human, as well as animal, associative learning. At the same time, we maintain that models developed from the association formation tradition continue to bear great heuristic value as well.

Generalising what is learned about one stimulus to other but perceptually related stimuli is a basic behavioural phenomenon. We evaluated whether a rule learning mechanism may serve to explain such generalisation. To this end, we assessed whether inference rules communicated through verbal instructions affect generalisation. Expectancy ratings, but not valence ratings, proved sensitive to this manipulation. In addition to revealing a role for inference rules in generalisation, our study has clinical implications as well. More specifically, we argue that targeting inference (...) rules might prove to be an effective strategy to affect the excessive generalisation that is often observed in psychopathology. (shrink)

Two key research issues in the field of causal learning are how people acquire causal knowledge when observing data that are presented sequentially, and the level of abstraction at which learning takes place. Does sequential causal learning solely involve the acquisition of specific cause-effect links, or do learners also acquire knowledge about abstract causal constraints? Recent empirical studies have revealed that experience with one set of causal cues can dramatically alter subsequent learning and performance with entirely different cues, suggesting that (...) learning involves abstract transfer, and such transfer effects involve sequential presentation of distinct sets of causal cues. It has been demonstrated that pre-training can modulate classic causal learning phenomena such as forward and backward blocking. To account for these effects, we propose a Bayesian theory of sequential causal learning. The theory assumes that humans are able to consider and use several alternative causal generative models, each instantiating a different causal integration rule. Model selection is used to decide which integration rule to use in a given learning environment in order to infer causal knowledge from sequential data. Detailed computer simulations demonstrate that humans rely on the abstract characteristics of outcome variables to select a causal integration rule, which in turn alters causal learning in a variety of blocking and overshadowing paradigms. When the nature of the outcome variable is ambiguous, humans select the model that yields the best fit with the recent environment, and then apply it to subsequent learning tasks. Based on sequential patterns of cue-outcome co-occurrence, the theory can account for a range of phenomena in sequential causal learning, including various blocking effects, primacy effects in some experimental conditions, and apparently abstract transfer of causal knowledge. (shrink)

Thousands of youth suffering from acquired brain injury or other early-life neurological disease live, mature, and learn with only limited communication and interaction with their world. Such cognitively capable children are ideal candidates for brain-computer interfaces. While BCI systems are rapidly evolving, a fundamental gap exists between technological innovators and the patients and families who stand to benefit. Forays into translating BCI systems to children in recent years have revealed that kids can learn to operate simple BCI with proficiency akin (...) to adults. BCI could bring significant boons to the lives of many children with severe physical impairment, supporting their complex physical and social needs. However, children have been neglected in BCI research and a collaborative BCI research community is required to unite and push pediatric BCI development forward. To this end, the pediatric BCI Canada collaborative network was formed, under a unified goal to cooperatively drive forward pediatric BCI innovation and impact. This article reflects on the topics and discussions raised in the foundational BCI-CAN meeting held in Toronto, ON, Canada in November 2019 and suggests the next steps required to see BCI impact the lives of children with severe neurological disease and their families. (shrink)

ABSTRACTIndividual differences in fear generalisation have been proposed to play a role in the aetiology and/or maintenance of anxiety disorders, but few data are available to directly support that claim. The research that is available has focused mostly on generalisation of peripheral and central physiological fear responses. Far less is known about the generalisation of avoidance, the behavioural component of fear. In two experiments, we evaluated how neuroticism, a known vulnerability factor for anxiety, modulates an array of fear responses, including (...) avoidance tendencies, towards generalisation stimuli. Participants underwent differential fear conditioning, in which one conditioned stimulus was repeatedly paired with an aversive outcome, whereas another was not. Fear generalisation was observed across measures in Experiment 1 and Experiment 2, with overall highest responding to the CS+, lowest to the CS− and intermediate responding to the GSs. Neuroticism had very little impact on fear generalisation, in line with the idea that fear generalisation is largely an adaptive process. (shrink)

ABSTRACTAffective states influence how individuals process information and behave. Some theories predict emotional congruency effects. Emotional congruency should theoretically obstruct the learning of reward associations and their ability to guide behaviour under negative mood. Two studies tested the effects of the induction of a negative affective state on appetitive Pavlovian learning, in which neutral stimuli were associated with chocolate or alcohol rewards. In both experiments, participants showed enhanced approach tendencies towards predictors of reward after a negative relative to a positive (...) performance feedback manipulation. This increase was related to a reduction in positive affect in Experiment 1 only. No effects of the manipulation on conditioned reward expectancies, craving, or consumption were observed. Overall, our findings support the idea of counter-regu... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:IntroductionGerhold K. BeckerThe concept of personhood has been a prime focus in contemporary bioethics. Three areas of ethical decision making in particular have been addressed through explorations into the conditions and criteria of personhood: the beginning and the end of human life and the morally relevant boundaries that separate human beings from nonhuman animals. Blending theology with science fiction, the scope of the latter area has been expanded further (...) to include entities ranging from gods, angels, and extraterrestrials all the way down to machines. Although the recognition of personhood traditionally has been based on metaphysical and ontological considerations about sets of (psychological and cognitive) person-making properties, the emphasis is now squarely placed on moral concerns. Simply put, from a moral perspective a person is someone morally considerable who is the subject of moral rights and merits moral protection. The implications of the conferral of person status for moral decision making in medicine, health care, and research are, however, less clear. Problems arise from the fact that the traditional concept of personhood is constituted by three rather different ideas. As David Wiggins has pointed out, the concept of personhood combines in a single focus the ideas of the person as object of science (biological, neurophysiological, and so forth), as subject of consciousness and experience, and as locus of value and moral attributes. It is therefore extremely difficult to neatly separate metaphysical personhood from moral personhood, and vice versa, and to draw morally relevant conclusions without continuously moving back and forth between the different constitutive factors. Thus, moral rights seem to presuppose moral agency, and moral agency is contingent on personal identity, which in turn presupposes some form of physical (including psychological) existence. It is obvious, that differences in the analysis of any one of these constituents of personhood will result in different conceptions of personhood with different implications for ethical decision making. Bioethical disputes about the moral status of human fetuses or of irreversibly comatose patients, as well as of the great apes [End Page 289] and other animals, are notoriously complex because they involve fundamental disagreements about personhood and the most promising strategies for their resolution. Although this has led some to question the usefulness of the concept of personhood for bioethics altogether, others seek remedy through the analysis of moral agency within the context of particular bioethical issues.The essays in this volume clearly reflect the current state of the bioethical debate on personhood and are representative of its major strands. They evolved from discussions at an international symposium on Bioethics and the Concept of Personhood at the Centre for Applied Ethics, Hong Kong Baptist University, May 1998, that explored the bioethical implications of the concept of personhood in a historical and cross-cultural perspective.In the opening essay, John Harris gives Locke’s concept of person a new twist by reading his list of criteria of personhood as preconditions of a being’s capability to value his or her own existence. The status of person is contingent upon the possession of the capacity to value one’s own existence; whoever is capable of such valuation is a person (as long such capacity actually exists) and makes moral claims on other persons. On this account, personhood is not co-extensive with human life or the human species, and even transcends other forms of organic life. Harris allows for the possibility that some machines in effect might qualify for person status. Although human life develops gradually and with it the capacity to value existence, Harris rejects both the potentiality argument and gradualism on the grounds that personhood is a “threshold” concept. Accordingly, proximity to the threshold is morally insignificant, and everything depends on actually crossing the threshold.Tom Beauchamp takes issue with what he sees as the dominant trend in contemporary bioethics to derive moral conclusions from metaphysical accounts of personhood. On his reading, metaphysical theories of personhood are abused in normative analysis by employing certain sets of psychological or cognitive properties to identify persons as bearers of moral rights. He argues that by themselves, without the incorporation of independent moral principles, such properties have no moral implications and cannot confer moral standing. Thus, a being may... (shrink)

Mitochondrial function and biogenesis depend on the transport of a large variety of proteins, ions, and metabolites across the two surrounding membranes. While several specific transporters are present in the inner membrane, transport processes across the outer membrane are less understood. Recent studies reveal that the number of outer membrane channels and their transport mechanisms are more diverse than originally thought. Four protein‐conducting channels promote transport of distinct sets of precursor proteins across and into the outer membrane. The voltage‐dependent anion (...) channel (VDAC) forms the major channel for small hydrophilic molecules. In addition, three channels with yet unknown substrate specificity exist in the outer membrane. In this review, we outline the emerging functional diversity, selectivity, and regulation of mitochondrial outer membrane channels. The presence of several channel‐forming proteins challenges the traditional view that the outer membrane forms an unspecific size‐exclusion filter for the flux of small hydrophilic molecules. (shrink)

An existential psychodynamic theory is presented based on Ernest Becker's claim that self‐esteem and cultural worldviews function to ameliorate the anxiety associated with the uniquely human awareness of vulnerability and mortality. Psychological equanimity is hypothesized to require (1) a shared set of beliefs about reality that imbues the universe with stability, meaning, and permanence; (2) standards by which individuals can judge themselves to be of value; and (3) promises of safety and the transcendence of death to those who meet the (...) standards of value. An empirical research program in support of this theory is then described, and the personal and interpersonal implications of these ideas are briefly considered. (shrink)

Sheldon Solomon, Jeff Greenberg, and Tom Pyszczynski offer experimental confirmation for Ernest Becker's claim that the fear of death is a powerful unconscious motive producing polarized worldviews and scapegoating. Their suggestion that their findings also prove Sigmund Freud's theory of repression, with worldviews as its irrational products, is questionable, although Becker's own statements about worldviews as “illusions” seem to invite such interpretation. Their basic theory does not depend on this, however, and abandoning it would enable them to take better advantage (...) of their finding that worldviews incorporating the values of rationality and tolerance tend to counteract polarization effects. (shrink)

More than twenty years after its original publication, The Case for Animal Rights is an acknowledged classic of moral philosophy, and its author is recognized as the intellectual leader of the animal rights movement. In a new and fully considered preface, Regan responds to his critics and defends the book's revolutionary position.

To understand Self-Representationalism you need to understand its family. Self-Representationalism is a branch of the Meta-Representationalist family, and according to theories in this family what distinguishes conscious mental representations from unconscious mental representations is that conscious ones are themselves the target of a mental meta¬-representational state. A mental state M1 is thus phenomenally conscious in virtue of being suitably represented by some mental state M2. What distinguishes the Self-Representationalist branch of the family is the claim that M1 and M2 must (...) be the same token mental state, so a mental state is phenomenally conscious in virtue of suitably representing itself. This Self-Representationalist branch of the family divides into further branches, giving us specific implementations of the Self-Representationalist approach. But before asking whether we should adopt Self-Representationalism, and in what form, we should reflect on why Meta-Representationalism is an attractive family in the first place. After all, Self-Representationalist theories trade on their family name, claiming to deliver on the promises that drive the Meta-Representationalist approach. The two most important promises of Meta-Representationalism are: a) the promise of capturing the transitivity of consciousness and; b) the promise of rendering consciousness naturalisable. I discuss each in turn. (shrink)

From Platonism to phenomenology -- Kant's epistemological shift to phenomenology -- Hegel's phenomenology as epistemology -- Husserl's phenomenological epistemology -- Heidegger's phenomenological ontology -- Kant, Merleau-Ponty's descriptive phenomenology, and the primacy of perception -- On overcoming the epistemological problem through phenomenology.

Abstract Temporal Externalism is the view that future events can contribute to determining the present content of our thoughts and utterances. Two objections to Temporal Externalism are discussed and rejected. The first is that Temporal Externalism has implausible consequences for the epistemology of biology and other taxonomic sciences (Brown, 2000). The second is that it is committed to implausible claims about dispositions.

To understand Self-Representationalism you need to understand its family. Self-Representationalism is a branch of the Meta-Representationalist family, and according to theories in this family what distinguishes conscious mental representations from unconscious mental representations is that conscious ones are themselves the target of a mental meta¬-representational state. A mental state M1 is thus phenomenally conscious in virtue of being suitably represented by some mental state M2. What distinguishes the Self-Representationalist branch of the family is the claim that M1 and M2 must (...) be the same token mental state, so a mental state is phenomenally conscious in virtue of suitably representing itself. This Self-Representationalist branch of the family divides into further branches, giving us specific implementations of the Self-Representationalist approach. But before asking whether we should adopt Self-Representationalism, and in what form, we should reflect on why Meta-Representationalism is an attractive family in the first place. After all, Self-Representationalist theories trade on their family name, claiming to deliver on the promises that drive the Meta-Representationalist approach. The two most important promises of Meta-Representationalism are: a) the promise of capturing the transitivity of consciousness and; b) the promise of rendering consciousness naturalisable. I discuss each in turn. (shrink)

In this engaging and accessible introduction to Hegel's theory of knowledge, Tom Rockmore brings together the philosopher's life, his thought, and his historical moment--without, however, reducing one to another. Laying out the philosophical tradition of German idealism, Rockmore concisely explicates the theories of Kant, Fichte, and Schelling, essential to an understanding of Hegel's thought. He then explores Hegel's formulation of his own position in relation to this tradition and follows Hegel's ideas through the competing interpretations of his successors. Even today, (...) according to Rockmore, Hegel's system remains an essentially modern conception of knowledge, superior to Kant's critical philosophy and surprisingly relevant to our philosophical situation. Rockmore's remarkably lucid and succinct introduction to Hegel's thought, with its distinctively historical approach, will benefit students of philosophy, intellectual history, politics, culture, and society. (shrink)

In this chapter, the author's unplanned venture into public philosophy began in the mid‐to‐late 1980s, just as Ronald Reagan was insisting that a certain famous wall be torn down. Various European thinkers and political philosophers in America, along with a few people working in the author's own tradition, like Robert Nozick and Peter Singer, had already begun to work in the nascent movement of “applied philosophy,” and in a public way. The author's early work in philosophy had been solidly within (...) the analytical tradition, with a special interest in religion, focused mainly on metaphysics and, secondarily, epistemological issues. Public philosophy can be rekindled in our time by any number of means and across a wide variety of topics. Many of the philosophers who had the biggest public impact in their own time and into our own have been good storytellers, and some have used the power of humor well. (shrink)

Chaque jour, l'homme est en bute à la notion de vérité. La question flagrante "qu'est-ce que la vérité?" ne se pose pas seulement dans le cadre de la connaissance philosophique, mais également par le biais des sentiments d'ambiguïté et d'angoisse que l'être humain éprouve durant son existence terrestre. Cette recherche a été faite d'abord sous l'angle de l'émergence de la vérité dans la pensée philosophique, ensuite dans le cadre théologique. Enfin, un autre volet a été pris en compte, celui de (...) la quête de la vérité à travers les Religions Traditionnelles Africaines. (shrink)

Alphonso Lingis is the author of many books and renowned for his translations of Levinas, Merleau-Ponty, and Klossowski. By combining a rich philosophical training with an extensive travel itinerary, Lingis has developed a distinctive brand of phenomenology that is only now beginning to gain critical attention. Lingis inhabits a ready-made language and conceptuality, but cultivates a style of thinking which disrupts and transforms the work of his predecessors, setting him apart from the rest of his field. This essay sketches Lingis’ (...) phenomenology of sensation in order to give expression to some dimensions of Lingisian travel. As we see, Lingis deploys a theory of the subject which features the plasticity of the body, the materiality of affect, and the alimentary nature of sensation. (shrink)

A philosophical memoir about becoming a father in an increasingly terrible world – can I hope the child growing in my partner's womb will have a good-enough life? For Kant, philosophy boiled down to three key questions: “What can I know?”, “What ought I do?”, and “What can I hope for?” In philosophy departments, that third question has largely been neglected at the expense of the first two – even though it is crucial for understanding why anyone might ask them (...) in the first place. In Infinitely Full of Hope, as he prepares to become a father for the first time, the philosopher Tom Whyman attempts to answer Kant’s third question, trying to make sense of it in the context of a world that increasingly seems like it is on the verge of collapse. Part memoir, part theory, and part reflection on fatherhood, Infinitely Full of Hope asks how we can cling to hope in a world marked by crisis and disaster. (shrink)

Now that she is old enough to be taken to boring, so-called “cultural” events by her aging, academic relatives, we have just taken Anya to see a performance of Julius Caesar. When it’s over, we discuss the acting, the poetry, the famous lines. At some point, Anya asks: “I wonder if it happened like that?” Anya has not radically misunderstood what we just watched; she did not, for example, rush down and yell at Caesar that he’d better read that scroll. (...) Her question is not uncommon as a response to a history play, from audience members both young and old. It is perfectly intelligible; I would like to give her an answer. Before I sketch some possible answers, it is worth saying something more about Anya’s. (shrink)

Dieses Buch versucht die Leerstelle bei der wissenschaftlichen Auseinandersetzung mit den Defekten der Demokratie zu füllen. Zwar blüht die Demokratieforschung, doch die systemimmanenten Defekte der Demokratie genießen eine vergleichsweise geringe (wenngleich wachsende) wissenschaftliche Aufmerksamkeit. Zu diesen Problemen zählen etwa ihr „short-termism“ und die „Unbeständigkeit der Zahl“, die Neigung zur „Tyrannei der Mehrheit“ und Kompetenzmängel beim Demos wie beim Führungspersonal. Die Autoren dieses Bandes – renommierte Experten auf dem Gebiet der Demokratieforschung – greifen je einen Defekt heraus, beleuchten ihn eingehend und (...) diskutieren institutionenreformerische Lösungsvorschläge. (shrink)

_A proactive, inclusive plan for the cross-disciplinary teaching of climate change from preschool to high school._ In _Teach for Climate Justice_, accomplished educator and social and emotional learning expert Tom Roderick proposes a visionary interdisciplinary and intersectional approach to PreK–12 climate education. He argues that meaningful instruction on this urgent issue of our time must focus on climate justice—the convergence of climate change and social justice—in a way that is emotionally safe, developmentally appropriate, and ultimately empowering. Drawing on examples of (...) real-life educators teaching climate change, Roderick identifies eight key dimensions of climate education that will prepare students to face the challenges of the climate crisis and give them the means to take action. These dimensions include not only educating for a deep understanding of the scientific, geopolitical, and socioeconomic equity issues that surround global warming, but also cultivating appreciation for the environment, building a supportive community, and fostering active hope for the future. Roderick's intentional layering of skills will help students develop the knowledge and sense of agency necessary to engage in civil resistance and nonviolent activism. In support of this crucial endeavor, Roderick suggests evidence-based teaching strategies, practices that promote inclusivity, and tools for social and emotional learning. This timely and uplifting book lays out a powerful vision for teaching, learning, and curriculum development to nurture a generation of courageous, informed advocates for climate justice. (shrink)

Philosophical Papers, Volume 41, Issue 1, Page 175-179, March 2012.

I shall consider the preferred design of micro-lending (microfinance) institutions in the poorest parts of the world, and also in richer jurisdictions where welfare state provision is shrinking. The institutions needed in these different contexts are, unsurprisingly, different, and part of their design involves interacting with institutions that are not primarily designed to reduce poverty. I shall assume that design considerations also extend to exploiting opportunities thrown up by globally significant recent events: the world banking and financial crisis has altered (...) the image of large mainstream retail and investment banks. The fact that they had a large share of the responsibility for the crisis has prompted many developed country governments to impose punitive taxes on them: some of the proceeds could well be used to support financial services for the poor. Again, some tax incentives could be used to promote certain kinds of partnerships between developed country banks and Southern micro-lending institutions. (shrink)

Die Entdeckung des Straßburger Empedokles-Papyrus und seine 1999 erfolgte Publikation war für die Erforschung der antiken Philosophie ein einzigartiger Glücksfall. Die neu hinzugekommenen Texte ergänzten die fragmentarische Überlieferung von Empedokles’ naturphilosophischem Lehrgedicht Physika (so der in der Antike gebräuchliche Titel) an entscheidenden Stellen. Allerdings wurde das Potenzial des Papyrus zur Klärung ungelöster Interpretationsprobleme in der auf die Veröffentlichung folgenden Forschungsdiskussion noch nicht ausgeschöpft. In der vorliegenden Arbeit wird auf der Basis einer kontinuierlichen inhaltlichen und sprachlichen Analyse des Textes eine Gesamtrekonstruktion (...) des empedokleischen Theoriegebäudes vorgelegt. Untersucht werden dabei vor allem die zyklische Struktur allen Werdens, die Funktionen von Liebe und Streit, die einzelnen Stadien von Kosmogonie und Zoogonie und das inhaltliche Verhältnis von Physika und einem weiteren Gedicht des Autors, den Katharmoi. Die Ergebnisse werden abschließend auch in einer neuen Übersetzung der durch Einbeziehung des Straßburger Papyrus wiedergewonnenen Teile des Gedichts zusammengeführt. (shrink)

This chapter contains sections titled: Note.