Using a classical conditioning technique, this study investigated whether nonconscious associative learning could be indexed by event-related brain activity . There were three phases. In a preconditioning baseline phase, pleasant and unpleasant facial schematics were presented in awareness . A conditioning phase followed, in which stimuli were presented outside awareness , with an unpleasant face linked to an aversive shock and a pleasant face not linked to a shock. The third, postconditioning phase, involved stimulus presentations in awareness . Evidence for (...) acquisition of a conditional response was sought by comparing suprathreshold pre- and postconditioning phases, as well as in the subthreshold conditioning phase itself. For the pre-postconditioning phase analyses, significant ERP component differences differentiating CS+ and CS− were observed for N1, P2, and especially P3. For the conditioning phase, significant differences were observed in the 100–400 ms. post-stimulus region reflecting a CS+ processing negativity. Brain activity does indeed index the acquisition of a conditional response to subthreshold stimuli. Associative learning can occur outside awareness. (shrink)

(1) The induced colours led to perceptual grouping and pop-out, (2) a grapheme rendered invisible through ‘crowding’ or lateral masking induced synaesthetic colours — a form of blindsight — and (3) peripherally presented graphemes did not induce colours even when they were clearly visible. Taken collectively, these and other experiments prove conclusively that synaesthesia is a genuine percep- tual phenomenon, not an effect based on memory associations from childhood or on vague metaphorical speech. We identify different subtypes of number–colour synaesthesia (...) and propose that they are caused by hyperconnectivity between col- our and number areas at different stages in processing; lower synaesthetes may have cross-wiring (or cross-activation) within the fusiform gyrus, whereas higher synaesthetes may have cross-activation in the angular gyrus. This hyperconnec- tivity might be caused by a genetic mutation that causes defective pruning of con- nections between brain maps. The mutation may further be expressed selectively (due to transcription factors) in the fusiform or angular gyri, and this may explain the existence of different forms of synaesthesia. If expressed very diffusely, there may be extensive cross-wiring between brain regions that represent abstract concepts, which would explain the link between creativity, metaphor and synaesthesia (and the higher incidence of synaesthesia among artists and poets). Also, hyperconnectivity between the sensory cortex and amygdala would explain the heightened aversion synaesthetes experience when seeing numbers printed in the ‘wrong’ colour. Lastly, kindling (induced hyperconnectivity in the temporal lobes of temporal lobe epilepsy [TLE] patients) may explain the purported higher incidence of synaesthesia in these patients. We conclude with a synaesthesia-based theory. (shrink)

We studied two otherwise normal, synaesthetic subjects who `saw' a speci¢c colour every time they saw a speci¢c number or letter. We conducted four experiments in order to show that this was a genuine perceptual experience rather than merely a memory association. (i)The synaesthetically induced colours could lead to perceptual grouping, even though the inducing numerals or letters did not. (ii)Synaesthetically induced colours were not experienced if the graphemes were presented peripherally. (iii)Roman numerals were ine¡ective: the actual number grapheme was (...) required. (iv)If two graphemes were alternated the induced colours were also seen in alternation. However, colours were no longer experienced if the graphemes were alternated at more than 4 Hz. We propose that grapheme colour synaesthesia arises from `cross-wiring' between the `colour centre' (area V4 or V8)and the `number area', both of which lie in the fusiform gyrus. We also suggest a similar explanation for the representation of metaphors in the brain: hence, the higher incidence of synaesthesia among artists and poets. (shrink)

This article supplements our earlier paper on synaesthesia published in JCS (Ramachandran & Hubbard, 2001a). We discuss the phenomenology of synaesthesia in greater detail, raise several new questions that have emerged from recent studies, and suggest some tentative answers to these questions.

Jones and Coleman are among a handful of otherwise normal as a child and the number 5 was red and 6 was green. This the- people who have synesthesia. They experience the ordinary ory does not answer why only some people retain such vivid world in extraordinary ways and seem to inhabit a mysterious sensory memories, however. You might _think _of cold when you no-man’s-land between fantasy and reality. For them the sens- look at a picture of an ice cube, (...) but you probably do not feel es—touch, taste, hearing, vision and smell—get mixed up in- cold, no matter how many encounters you may have had with stead of remaining separate. ice and snow during your youth. Modern scientists have known about synesthesia since Another prevalent idea is that synesthetes are merely being 1880, when Francis Galton, a cousin of Charles Darwin, pub- metaphorical when they describe the note C flat as “red” or say lished a paper in _Nature _on the phenomenon. But most have that chicken tastes “pointy”—just as you and I might speak of brushed it aside as fakery, an artifact of drug use (LSD and a “loud” shirt or “sharp” cheddar cheese. Our ordinary lan- mescaline can produce similar effects) or a mere curiosity. guage is replete with such sense-related metaphors, and perhaps About four years ago, however, we and others began to un- synesthetes are just especially gifted in this regard. cover brain processes that could account for synesthesia. Along We began trying to find out whether synesthesia is a gen- the way, we also found new clues to some of the most mysteri- uine sensory experience in 1999. This deceptively simple ques- ous aspects of the human mind, such as the emergence of ab- tion had plagued researchers in this field for decades. One nat- stract thought, metaphor and perhaps even language. ural approach is to start by asking the subjects outright: “Is this A common explanation of synesthesia is that the affected just a memory, or do you actually see the color as if it were right people are simply experiencing childhood memories and asso- in front of you?” When we tried asking this question, we did ciations.. (shrink)

In the years 2020–2021, journalists, lawyers, scholars, and civil society actors noticed an unusual spike in the refusal of francophone African immigrants in Québec, Canada. While Immigration, refugee and citizenship Canada’s systemic racism problem were already documented, the novelty appeared to be how standardized and sometimes, “nonsensical” the reasons given to many of the applicants were. This eventually prompted a lawsuit against IRCC in which it was revealed that a new piece of software called “Chinook” had been deployed since 2018, (...) approximately at the same time application refusal started spiking. Online and media-fueled speculations culminated in a broad debate about whether Chinook was an artificial intelligence-based technology. Such controversy, for instance, unfolded during parliamentary consultations in which it was finally disclosed that Chinook was not AI per se., but more of a half-baked automated interface. The present article aims to understand how the performative ambiguity of Chinook informs on the progressive becoming of the Canadian Federal state and its immigration control practices in the current Machine Learning hype. Furthermore, it seeks to understand how the interlacing of public–private partnership, in which the private sector is mobilized to produce AI-driven technology, recursively transforms the exercise of governance and governmentality. We argue, through the Chinook controversy and its unfolding, that there is a shift occurring where AI becomes ever more central in statecraft “anarchitecture” and cybernetic adaptability. (shrink)

Using a classical conditioning technique, this study investigated whether nonconscious associative learning could be indexed by event-related brain activity . There were three phases. In a preconditioning baseline phase, pleasant and unpleasant facial schematics were presented in awareness . A conditioning phase followed, in which stimuli were presented outside awareness , with an unpleasant face linked to an aversive shock and a pleasant face not linked to a shock. The third, postconditioning phase, involved stimulus presentations in awareness . Evidence for (...) acquisition of a conditional response was sought by comparing suprathreshold pre- and postconditioning phases, as well as in the subthreshold conditioning phase itself. For the pre-postconditioning phase analyses, significant ERP component differences differentiating CS+ and CS− were observed for N1, P2, and especially P3. For the conditioning phase, significant differences were observed in the 100–400 ms. post-stimulus region reflecting a CS+ processing negativity. Brain activity does indeed index the acquisition of a conditional response to subthreshold stimuli. Associative learning can occur outside awareness. (shrink)

Freedom and the Rule of Law takes a critical look at the historical beginnings of law in the United States, and how that history has influenced current trends regarding law and freedom. Anthony Peacock has compiled articles that examine the relationship between freedom and the rule of law in America. The rule of law is fundamental to all liberal constitutional regimes whose political orders recognize the equal natural rights of all.

Affective variables have been shown to impact working memory and cognitive control. Theoretical arguments suggest that the functional impact of emotion on cognition might be mediated through shifting action dispositions related to changes in motivational orientation. The current study examined the effects of positive and negative affect on performance via direct manipulation of motivational state in tasks with high demands on cognitive control. Experiment 1 examined the effects of monetary reward on task-switching performance, while Experiment 2 examined the effects of (...) both rewards and punishments on working memory, using primary (liquid) reinforcers. In both experiments, dissociable trial-by-trial and contextual (block-related) enhancements of cognitive control during task performance were observed in relationship to motivational incentive value. Performance enhancements were equivalent in the reward and punishment conditions, but were differentially impacted by individual difference measures of trait reward and punishment sensitivity. Together, the results suggest both common and specific mechanisms by which approach and avoidance motivational states influence cognitive control, via activation of reward and punishment processing systems. (shrink)

Background Central to the involvement of children in health research is the notion of risk. In this paper we present one of the factors, a matter of trust, that shaped Canadian parents' and children's perceptions and assessments of risk in child health research. Participants and methods Part of a larger qualitative research study, 82 parents took part an in-depth qualitative interview, with 51 parents having children who had participated in health research and 31 having children with no research history. 51 (...) children ranging from 6 to 19 years of age were also interviewed, with 28 having a history of participation in child health research and 23 having no history. Children also took part in 3 focus groups interviews. Themes emerged through a grounded theory analysis of coded interview transcripts. Findings The presence or absence of trust was not only perceived by parents and children as a contributing factor to involving children in health research, but also shaped their perceptions and assessments of risk. Three interrelated subthemes identified were: (1) relationships of trust; (2) placing trust in symbols of authority; and (3) the continuum of trust. Conclusions Our study reinforces that trust is an important factor when parents assess risk in child health research and shows that children use the language of trust in relation to risk. More discussion regarding trust in training researchers is warranted given the trust in researchers and institutions evident in this study. We also recommend further study of the continuum of trust in child health research. (shrink)

More than 50 years after it was first published, The Concept of Law remains the most important work of legal philosophy in the English-speaking world. In this volume, written for both students and specialists, 13 leading scholars look afresh at Hart's great book. Unique in format, the volume proceeds sequentially through all the main ideas in The Concept of Law: each contributor addresses a single chapter of Hart's book, critically discussing its arguments in light of subsequent developments in the field. (...) Four concluding essays assess the continued relevance for jurisprudence of the 'persistent questions' identified by Hart at the beginning of The Concept of Law. The collection also includes Hart's 'Answers to Eight Questions', written in 1988 and never before published in English. Contributors include Timothy Endicott, Richard HS Tur, Pavlos Eleftheriadis, John Gardner, Grant Lamond, Nicos Stavropoulos, Leslie Green, John Tasioulas, Jeremy Waldron, John Finnis, Frederick Schauer, Pierluigi Chiassoni and Nicola Lacey. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Changing Functions, Moral Responsibility, and Mental IllnessCraig Edwards (bio)Keywordsmental illness, responsibility, character, dysfunction, personhoodI thank both Wakefield and Tomasini for their illuminating comments. Both commentaries are thought provoking and warrant a full response. However, as always, space is limited and I must make the all-too-predictable apology for not addressing both commentaries in full. Wakefield's contribution more directly engages with, and challenges, my claims, and so I focus on (...) addressing his concerns.ClarificationsWakefield correctly notes that I am interested in how mental illness (and illness generally) operates to remove moral responsibility for one's actions. Despite this, it seems at several points that he and I are talking about two different, albeit related, concepts of mental illness. 'Mental illness' is used to both explain and excuse certain behaviors, but these two functions, explanatory and exculpable, do not always operate simultaneously. As we discover biological explanations for apparently immoral behaviors, the question arises as to whether the explanation should remove the immorality and liability for punishment. The 'sick role' can be divided into two aspects. One is the role of deserving and warranting medical treatment. The other is the negation of moral responsibility. Wakefield's own example, pedophilia, involves the first sense of the sick role but not the second. Wakefield's use of this example is unusual, because it deftly highlights the limitation of his HD account. Pedophilia is a mental disorder in the sense of warranting treatment, and is a mental illness under Wakefield's model, but it is not something that negates moral responsibility. There is a sense of the term 'mental illness'—an important and, as I argue, an objective sense—that is relevant to establishing one's moral responsibility for such behaviors.In addressing my account of mental illness as though it contained two distinct answers, 'mental illness as dysfunction of rational agency, or 'mental illness as moral judgment,' it is unclear whether Wakefield takes them to be conjunctive or alternative. Hence it is worth reiterating in point form the structure of my account:1. Illness involves dysfunction;2. The 'proper function' of a bodily or psychological mechanism is determined by the purpose that we impose upon that mechanism (within the constraints of our biological needs);3. Dysfunction of rational agency is necessary, but not sufficient, for 'mental illness' in the normative sense relevant to negating moral responsibility; and [End Page 105]4. The distinction between 'mental illness' (in the above sense) and the many dysfunctions of rational agency for which we are morally responsible, turns upon (objective) normative facts rather than features internal to the dysfunctions themselves.Functions and ValueWakefield misses the point when he criticizes my comment that, although bodily mechanisms are fairly uniformly valued, there is substantial historical and cross-cultural variation in the way people value personhood. He notes—accurately, but irrelevantly—that people almost always place great value on their capacity for rational agency, probably more so than many aspects of their physical health. My comment, taken in context, has nothing to do with how much people value personhood, but has everything to do with what kinds of purposes people want their mental and physical processes to achieve. A heart has the same function for a Londoner today as it did for a Japanese peasant a thousand years ago, and although it is possible for us to want it to achieve other purposes, any culture that seriously imputes a different set of vital functions on the heart is likely to be rather disappointed. By contrast, our species has experienced vast changes in the demands we make of our rational and intellectual capacities—dysfunctions like dyslexia and alcoholism were irrelevant before the availability of written communication and alcohol.Wakefield's HD account is unable to deal with the relevance of such change. The link between evolutionary function and illness is tenuous in any event. Evolutionary explanations of specific mechanisms are often untestable, simply positing some evolutionary purpose that happens to fit our understanding of what the mechanism does. If we were to discover that alcoholism evolved as a means of increasing birthrates, or (perhaps more plausibly) that anxiety disorders occur among those for whom... (shrink)

In popular articles that play down the genetical differences among human populations, it is often stated that about 85% of the total genetical variation is due to individual differences within populations and only 15% to differences between populations or ethnic groups. It has therefore been proposed that the division of Homo sapiens into these groups is not justified by the genetic data. This conclusion, due to R.C. Lewontin in 1972, is unwarranted because the argument ignores the fact that most of (...) the information that distinguishes populations is hidden in the correlation structure of the data and not simply in the variation of the individual factors. The underlying logic, which was discussed in the early years of the last century, is here discussed using a simple genetical example. (shrink)

Karl Marx (1818-1883) was trained as a philosopher and steeped in the thought of Hegel and German idealism, but turned away from philosophy in his mid-twenties towards politics, economics and history. It is for his these subjects Marx is best known and in which his work and ideas shaped the very nature of the nineteenth and twentieth centuries. However, Marx's engagement with philosophy runs through most of his work, especially in his philosophy of history and in moral and political philosophy. (...) In this outstanding introduction to Marx's philosophy Jaime Edwards and Brian Leiter begin with an overview of Marx's life and intellectual development, before examining and assessing the following important topics: Marx's theory of history: Hegel, dialectics, teleology, materialism functionalism and the causal explanation of historical change economics, history and the transition from communism to capitalism ideology, morality and religion human nature, alienation and the good life for human beings Marx's legacy and influence, including Western Marxism and the Frankfurt School. The addition of chapter summaries, annotated further reading and a glossary of technical terms make this an indispensable introduction to Marx's philosophy. It will also be useful to those in related disciplines such as politics, sociology, history and economics. (shrink)

The Alleged Turning Point in European Philosophy Existentialists, especially those who follow either Heidegger or Jaspers, find a great deal objectionable in what they variously call ‘scientism’, ‘scientific rationalism’, and ‘positivism’. In this article I shall discuss one of the alleged defects of scientific rationalism, that it recognizes only one kind of truth—the kind that existentialists call ‘objective truth’. ‘One great achievement of existential philosophy,’ writes William Barrett, ‘has been a new interpretation of the idea of truth in order to (...) point out that there are different kinds of truth, where a rigid scientific rationalism had postulated but one kind: objective scientific truth.’ Not only scientific rationalists but traditional metaphysicians from Plato to Aquinas and Hegel are judged to be equally at fault here: they too have failed to recognize any truth other than the objective variety. It was Kierkegaard who for the first time effectively challenged the assumptions shared by scientific rationalists and traditional metaphysicians. Kierkegaard, in Barrett's words, ‘had to re-open the whole question of the meaning of truth … his stand on the question may well have marked a turning point in European philosophy.’. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Paradox of Subjectivity: The Self in the Transcendental TraditionJeffrey EdwardsDavid Carr. The Paradox of Subjectivity: The Self in the Transcendental Tradition. New York/Oxford: Oxford University Press, 1999. Pp. xii + 150. Cloth, $35.00.This book presents a response to contemporary attacks on the concept of the subject. Carr investigates the historical background to the criticisms of the "Metaphysics of the Subject" that are found in French post-structuralist thought (...) and in critical theories descended from the Frankfurt School. In explaining this background, he targets the widely held assumption that the history of modern philosophy can best be understood in terms of a fundamentally unified conception of the subject and subjectivity that unfolds inevitably from Descartes and culminates in twentieth-century phenomenology and existentialism. Those who share this assumption fail to recognize the significance of what Husserl (in the Crisis of European Sciences) called the "paradox of subjectivity," which derives from the necessity of understanding the knowing subject both as a subject for the world and as an object in the world.The origins of contemporary interpretations of the metaphysics of the subject are found primarily in Heidegger's thought. Carr thus devotes the first chapter of this study to the critical assessment of Heidegger's view of modern metaphysics starting with Descartes. For Heidegger, Descartes took over the dominant concept of substance from traditional ontology and transferred it to the human subject. The Cartesian subject, then, was revealed as an underlying hypokeimenon that absorbs or overpowers the world by reducing it to the representational contents of the thinking thing. Moreover, Heidegger maintained that modern thinkers did not go beyond the reductive conception of subjectivity intrinsic to the Cartesian metaphysics of substance. This Heideggerian judgment applies to the major modern thinkers. Even Kant and Husserl figure as representatives of a tradition in which "the knowing subject takes the role of substance; everything is reduced to first properties, whether as immanent in consciousness, object for the subject, or, as in transcendental philosophy, construct and product of subjective activity" (Carr, 31).In chapters 2-4, Carr argues that the Heideggerian interpretation is inadequate with respect to Kant and Husserl. In supporting this position, Carr emphasizes the close affinities between Kant's and Husserl's conceptions of objectivity for consciousness and between their portrayals of subject and self. Specifically, Carr argues (1) that both thinkers were committed to the representationalist view of cognition that is typical of other major modern philosophers; and (2) that both presented parallel, and indeed unifiable, accounts of the relationship between the transcendental and the empirical self.The key to explaining the fundamental agreement between Kant's and Husserl's transcendental theories lies in the concept of intentionality. There are, of course, significant differences between Husserl's phenomenological method and the procedure of inquiry into the possibility conditions of objective experience that Kant follows in the Critique of Pure Reason. Still, Husserl's portrayal of the intentional character of consciousness provides the basis for understanding how Kant's account of transcendental apperception and the original synthetic unity of self-consciousness grounds a non-representationalist theory of the subject's relation to a world of objects. Husserl's portrayal of intentionality also enables us to see how Kant's concept of transcendental [End Page 609] apperception allows for a description of the empirical self as something that is part of the objective world. Conversely, the Kantian distinction between the transcendental and the empirical self, or subject, sheds light on the sense of the distinction that Husserl draws between transcendental and natural reflection. In natural reflection, I "appear to myself as an empirical subject within a world to which I relate in causal-bodily and intentional [i.e., purposive]-motivational ways" (89). On the other hand, the consciousness of self at issue in transcendental reflection involves my awareness of the meaning-constituting cognitive accomplishments by which I am consciousness of the world as the horizon of possible objects and, at the same time, as something transcendent to consciousness.It is Husserl's conception of intentionality, combined with Kant's understanding of the transcendental-empirical distinction, that allows us to grasp the full significance of the paradox... (shrink)

The authors are members of the British Association Committee on Social Concern and Biological Advances. Following earlier discussions of legal and social problems arising from certain medical advances, they undertook, independently, to examine the Law Commission's study.

This paper presents the story of an isiXhosa traditional healer, Nomzi Hlathi, as told to the first author. Nomzi was asked about how she came to be an igqirha and the narrative focuses on those aspects of her life story that she understood as relevant to that developmental process. The material was obtained from a series of semi-structured interviews with Nomzi, with some collateral from her cousin, and synthesised into a chronological narrative presented in Nomzi’s own words. The aim of (...) the study was to examine her account of her unfolding experience within three hermeneutic frames. The first is the isiXhosa traditional account of what it is to become an igqirha, a process initiated by intwaso, an illness understood to be a call from the ancestors, and guided by messages from the ancestors in dreams and other symbolic communications. The second is the perspective of Western Clinical Psychology on the cognitive, emotional and behavioural disturbances that characterise intwaso. The third is the perspective of transpersonal psychology on the nature and development of shamanic healing gifts, as understood from observations of such practices in traditional societies across the world. As the narrative of Nomzi’s story is quite long, this paper presents her narrative as well as the methodology which gave rise to it. The interpretative review of the material from each of the three perspectives is presented in a second paper. (shrink)

A new understanding of Kant’s theory of a priori knowledge and his natural philosophy emerges from Jeffrey Edwards’s mature and penetrating study. In the Third Analogy of Experience, Kant argues for the existence of a dynamical plenum in space. This argument against empty space demonstrates that the dynamical plenum furnishes an a priori necessary condition for our experience and knowledge of an objective world. Such an a priori existence proof, however, transgresses the limits Kant otherwise places on transcendental arguments (...) in the _Critique of Pure Reason_ because it establishes a _material_ transcendental condition of possible experience. This finding motivates Edwards to examine the broader context of Kant’s views about matter, substance, causal influence, and physical aether in connection with the developmental history of his theory of transcendental idealism. Against the backdrop of early modern metaphysics and contemporaneous physical theory, Edwards explicates the origins of the Third Analogy in Kant’s early work on the metaphysics of nature. The argument against empty space presented in the Third Analogy reveals a central aspect of Kant’s transcendental theory of experience that Edwards explains lucidly. By clarifying the epistemological standpoint at issue in the Third Analogy, he shows that the fundamental revisions to which Kant subjects his theory of knowledge in the _Opus postumum_ not only originate in his precritical metaphysics of nature but are developments of an argument central to the _Critique of Pure Reason_ itself. Edwards’s work is important to scholars working in the history of philosophy and the history and philosophy of science, as well as to Kant specialists. (shrink)

The purpose of this study is to examine the importance that real patients attach to their right to withdraw from an on-going feasibility randomised trial (RCT) evaluating types and timings of breast reconstruction (two parallel trials) following mastectomy for breast cancer. Our results show that, while some respondents appreciated that exercising the right to withdraw would defeat the scientific objective of the trial, some patients with a surgical preference consented only given the knowledge they could withdraw if they were not (...) allocated to their preferred treatment. (shrink)