In the late 1960s and early 1970s David Marr produced three astonishing papers in which he gave a detailed account of how the fine structure and known cell types of the cerebellum, hippocampus and neocortex perform the functions that they do. Marr went on to become one of the main founders of Computational Neuroscience. In his classic work 'Vision' he distinguished between the computational, algorithmic, and implementational levels, and the three early theories concerned implementation. However, they were produced when Neuroscience (...) was in its infancy.Now that so much more is known, it is timely to revisit these early theories to see to what extent they are still valid and what needs to be altered to produce viable theories that stand up to current evidence. This book brings together some of the most distinguished scientists in their fields to evaluate Marr's legacy. (shrink)

A single case study of a patient, D.M., with a lesion in the region of the right occipito-temporal gyrus is presented. D.M. had well-preserved language and general cognitive abilities. Colour discrimination, contrast sensitivity, gross depth perception, spatial localization, and motion appreciation were within normal limits.On the evaluation of perceptual abilities, he failed to identify two-dimensional shapes from stereoscopic vision, motion, and texture although in all cases he was able to identify the rough area subtended by the shape. These findings are (...) considered in relation to the current anatomical-physiological functional models of vision and it is suggested that D.M. 's deficits provide evidence for the existence in man of a functional pathway involved in the computation of texture and fine aspects of shape, which is distinct from the pathways involved in motion and stereopsis processing on one hand and colour and coarse aspects of form on the other hand. (shrink)

The neural substrate of early visual processing in the macaque is used as a framework to discuss recent progress towards a precise anatomical localization and understanding of the functional implications of the syndromes of blindsight, achromatopsia and akinetopsia in humans. This review is mainly concerned with how these syndromes support the principles of organization of the visual system into parallel pathways and the functional hierarchy of visual mechanisms.

Twenty-four aphasic and fifteen right brain-damaged subjects were compared on their ability to identify the objects whose use was depicted in a series of twenty videotaped pantomimes. Aphasics were inferior to right brain-damaged patients in inferring object use. Success was correlated with Performance IQ, but not with language measures. Analysis of movement features contributing to subjects' choices reveal speed of movement and object weight to be the most robust and hand shape and size to be the most fragile.

Several authors have characterized a striking phenomenon of perceptual learning in visual discrimination tasks. This learning process is selective for the stimulus characteristics and location in the visual field. Since the human visual system exploits symmetry for object recognition we were interested in exploring how it learns to use preattentive symmetry cues for discriminating simple, meaningless, forms. In this study, similar to previous studies of perceptual learning, we asked whether the effects of practice acquired in the discrimination of pairs of (...) shape with a specific orientation of the symmetry axis would transfer to the discrimination of shapes with different orientation of symmetry axis, or to shapes presented in different areas of the visual field. We found that there was no learning transfer between forms with very different axes of symmetry (90° apart). Interestingly, however, we found a transfer of learning effect to horizontally oriented symmetry axis from a condition with an axis of symmetry differing by 45°. Also it appears that some subjects took a longer time to learn than the typical fast learning paradigm would predict. Data showed that when observers practice discrimination of meaningless symmetric forms, consistent improvement in the performance occurs. This improvement is lasting over days, and it tends to be specific for the area of the visual field trained. We will discuss results from some of the observers whose learning was not fast, but who actually improved with more practice and with large time intervals (1 day) between training sessions. (shrink)

If a state commits injustice, who is responsible for compensating its victims and safeguarding against future wrongdoing? Do the state’s citizens bear this responsibility? Do they all bear it equally? Avia Pasternak's and Holly Lawford-Smith's recent books address these pressing questions. Each book represents a thought-provoking attempt to derive an account of citizen responsibility for state wrongs from an account of state agency understood as group agency. Though the books demonstrate the promise of this approach to produce action-guiding advice for (...) real policymakers, they also demonstrate its limitations—in particular, its lack of attention to social structures. Here, I argue that Pasternak's and Lawford-Smith's views would be enriched by further engagement with the literature on structural injustice, which takes individuals’ perpetuation of social systems (not their implication in acts of group agency) as a central source of their remedial obligations. Through critical engagement with Pasternak and Lawford-Smith, I illustrate how a structural injustice framework could yield more attractive conclusions than a group agency framework in certain cases, better explain non-culpable forms of citizen responsibility, and allow us to theorize citizen responsibility for state action without making questionable claims about the metaphysics or social ontology of group agency. (shrink)

Some recent uses of artificial intelligence for facial recognition, evaluating resumes, and sorting photographs by subject matter have revealed troubling disparities in performance or impact based on the demographic traits of subject populations. These disparities raise pressing questions about how using artificial intelligence can work to promote justice or entrench injustice. Political theorists and philosophers have developed nuanced vocabularies and theoretical frameworks for understanding and adjudicating disputes about what justice requires and what constitutes injustice. The interdisciplinary community committed to understanding (...) and conscientiously using big data could benefit from this work. Thus, in the spirit of encouraging cross-disciplinary dialogue and collaboration, this piece examines contemporary scholarship in political theory and philosophy to illustrate some of the vocabularies and frameworks political theorists and philosophers have developed for thinking about justice and injustice. It then draws on these frameworks to illuminate how the use of artificial intelligence can implicate questions of justice, with a focus on institutional discrimination, structural injustice, and epistemic injustice. Ultimately, the piece argues that the use of artificial intelligence—far from representing a decision to take power out of human hands—represents a novel way of harnessing human power, making questions of justice central to its conscientious undertaking. (shrink)

Political theorists have written a great deal about the ethics of “intervention,” defined as states using coercion or force to interfere in foreign societies’ politics. But this work leaves much of global politics un-analyzed—both because non-state actors play an increasingly significant role in it and because its practitioners use many tactics besides force and coercion.We need an ethics of foreign influence to help us navigate the global political arena in all its complexity. Here, I begin to develop a unified theory (...) of the ethics of deliberate attempts to promote justice in foreign societies, whether undertaken by state or non-state actors, and whatever tactics they employ. I identify two important but under-appreciated dimensions along which instances of foreign influence can differ and argue that, once we appreciate the full range of forms foreign influence can take, we’ll see it’s often immune to the common moral objections against intervention. (shrink)

Views that say corporations can be agents in their own right, metaphysically distinct from their individual members, are increasingly popular. Given the moral significance usually attributed to agency, this raises the question of whether corporate agents have moral rights comparable with those of individual agents. In this article, I argue that, even if we accept corporations can be agents, we must conclude that their moral rights are more limited than, because they are derivative of, the rights of their individual members. (...) In so doing, I offer a version of normative individualism even those who reject methodological individualism should accept. I then apply my findings to criticize the US Supreme Court’s decision in Burwell v. Hobby Lobby. (shrink)

Here, I reply to four commentaries on my recent book, Promoting Justice Across Borders: The Ethics of Reform Intervention. I clarify and extend several topics from the book, including the relationship of ‘reform intervention’ to other ways of promoting global justice, the implications questions of identity and societal membership have for my theory of reform intervention, the status of individuals and collectives in my theory, and how my account of toleration relates to other liberal values and historical practices of toleration.

Prepared for an online reference volume meant to enable dialogue on shared terms among people in the various fields related to ethics and artificial intelligence (e.g., computer science, political theory, philosophy, law), this piece has two aims. One is to explain to non-specialists what political theorists and philosophers are talking about when we talk about “justice.” The other is to discuss some particular questions of justice implicated by the use of artificial intelligence. The piece also includes a thematically-organized reading list (...) designed for those who aren’t specialists in political theory or philosophy, but who are interested in learning more about justice as it’s conceptualized in these disciplines. (shrink)

This book explores when, and using what means, global political actors are morally justified in promoting their own ideas of justice in foreign societies. It develops ethical principles we can use to judge when such activities (“reform interventions”) are justified. In so doing, it re-conceives the traditional boundaries of politics and lays the foundation for a politically-engaged cosmopolitanism.

. Fresh evidence from Free Choice Items (FCIs) in French question the current perception of the class. The role of some standard distinctions found in the literature is weakened or put in a new perspective. The distinction between universal and existential is no longer an intrinsic property of FCIs. Similarly, the opposition between variation-based vs intension-based analyses is relativized. We show that the regime of free choiceness can be characterized by an abstract constraint, that we call Non-Individuation (NI), and which (...) can be satisfied in different ways that match current distinctions. NI says that the information conveyed by a sentence containing a FCI should not be reducible to a referential situation, that is a situation in which particular individuals satisfy the sentence in the current world. The widely used resource of modal variation becomes a particular scenario of free-choiceness, not its essence. In fact, we show that under certain conditions, FCIs can occur in episodic, non-modal sentences, a fact that NI can accommodate. We also discuss more fine-grained aspects of the semantics of FCIs, such as their emotional colour. (. . .) the tripod fell spontaneously, because, though it stood on its feet so as to serve for a seat, it did not fall so as to serve for a seat. Aristotle, Physics II,6. (shrink)

A presente coletânea é resultado de cooperação de pesquisadores brasileiros e portugueses, envolvidos com a docência no ensino superior e a consequente formação continuada dos professores universitários. A frequência no ensino superior é vista como uma conquista social dos ideais democráticos modernos e teria trazido novos públicos aos bancos escolares, o que tornaria esse ensino uma realidade de maneira qualitativa distinta com a qual decisores políticos, gestores, professores e estudantes devem aprender a lidar. Essas preocupações pretenderam motivar e nortear os (...) temas abordados nesta obra. (shrink)

AimsThis study evaluates a protocol for early, routine ethics consultation for patients on extracorporeal membrane oxygenation to support decision-making in the context of clinical uncertainty with the aim of mitigating ethical conflict and moral distress.MethodsWe conducted a single-site qualitative analysis of EC documentation for all patients receiving ECMO support from 15 August 2018 to 15 May 2019. Detailed analysis of 20 ethically complex cases with protracted ethics involvement identifies four key ethical domains: limits of prognostication, bridge to nowhere, burden of (...) treatment and system-level concerns. There are three subthemes: relevant contextual factors, the role of EC and observed outcomes. Content analysis of transcripts from interviews with 20 members of the multidisciplinary ECMO team yields supplemental data on providers’ perceptions of the impact of the early intervention protocol.ResultsLimited outcome data for ECMO, unclear indications for withdrawal, adverse effects of treatment and an obligation to attend to programme metrics present significant ethical challenges in the care of this patient population. Upstream EC mitigates ethical conflict by setting clear expectations about ECMO as a time limited trial, promoting consistent messaging among multiple services and supporting surrogate decision-makers. When ECMO becomes a ‘bridge to nowhere’, EC facilitates decision-making that respects patient values yet successfully sets limits on non-beneficial use of this novel therapy.ConclusionData from this study support the conclusion that ECMO poses unique ethical challenges that necessitate a standardised protocol for early, routine EC—at least while this medical technology is in its nascent stages. (shrink)

In this paper we focus on the modularity of visual functions in the human visual cortex, that is, the specific problems that the visual system must solve in order to achieve recognition of objects and visual space. The computational theory of early visual functions is briefly reviewed and is then used as a basis for suggesting computational constraints on the higher-level visual computations. The remainder of the paper presents neurological evidence for the existence of two visual systems in man, one (...) specialized for spatial vision and the other for object vision. We show further clinical evidence for the computational hypothesis that these two systems consist of several visual modules, some of which can be isolated on the basis of specific visual deficts which occur after lesions to selected areas in the visually responsive brain. We will provide examples of visual modules which solve information processing tasks that are mediated by specific anatomic areas. We will show that the clinical data from behavioral studies of monkeys (Ungerleider and Mishkin 1984) supports the distinction between two visual systems in monkeys, the 'what' system, involved in object vision, and the 'where' system, involved in spatial vision. (shrink)

The primary objective was to review pediatric ethics consultations at a large academic health center over a nine year period, assessing demographics, ethical issues, and consultant intervention. The secondary objective was to describe the evolution of PECs at our institution. This was a retrospective review of Consultation Summary Sheets compiled for PECs at our Academic Health Center between January 2008 and April 2017. There were 165 PECs reviewed during the study period. Most consult requests came from the inpatient setting, with (...) the Pediatric and Neonatal Intensive Care Units being the highest utilizers. Consultation utilization increased over the study period. The most common patient age was less than one year. Physicians were most likely to request consultation. Patient Best Interest, Withholding/Withdrawing of Life Sustaining Therapy, and Provider Moral Distress were ethical issues most commonly identified by the consultants. Making recommendations was the most common consultant intervention. The ethics consultation process evolved over time from informal provider discussions, to a hospital infant care review committee, to a pediatric only consultation service, to a combined adult/pediatric consultation service, with variable levels of salary support for consultants. Ethics consultation requests are growing at our institution. Similarities in identified ethical issues exist between our findings and existing literature, however meaningful comparisons remains elusive secondary to variability in approaches to investigation and reporting. A combined paid/volunteer/trainee ethics consultation service model appears sustainable and real time ethics consultation is feasible using this approach. (shrink)

The idea of a role in nursing that includes expertise in ethics has been around for more than 30 years. Whether or not one subscribes to the idea that nursing ethics is separate and distinct from bioethics, nursing practice has much to contribute to the ethical practice of healthcare, and with the strong grounding in ethics and aspiration for social justice considerations in nursing, there is no wonder that the specific role of the nurse ethicist has emerged. Nurse ethicists, expert (...) in nursing practice and the application of ethical theories and concepts, are well positioned to guide nurses through complex ethical challenges. However, there is limited discussion within the field regarding the specific job responsibilities that the nurse ethicist ought to have. The recent appearance of job postings with the title “nurse ethicist” suggest that some healthcare institutions have identified the value of a nurse in the practice of ethics and are actively recruiting. Discomfort about the possibility of others defining the role of the nurse ethicist inspired this paper (and special issue). If the nurse ethicist is to be seen as an integral part of addressing ethical dilemmas and ethical conflicts that arise in healthcare, then nurse ethicists ought to be at the forefront of defining this role. In this paper, we draw upon our own experiences as nurse ethicists in large academic healthcare systems to describe the essential elements that ought to be addressed in a job description for a nurse ethicist practicing in a clinical setting linked to academic programs. Drawing upon our experience and the literature, we describe how we perceive the nurse ethicist adds value to healthcare organizations and teams of professional ethicists. (shrink)

The novelty of the coronavirus disease 2019 pandemic is that it is occurring in a globalized society enhanced by digital capabilities. Our aim was to analyze the psychological and emotional states of participants in different pandemic-related contexts, with a focus on their digital and physical distancing behaviors. The online survey was applied during the ascending phase of the pandemic in March 2020 in two neighboring EU countries: Italy and Croatia. The study subjects involved four groups, two directly affected by epidemiological (...) measures and two serving as controls— participants from Italy who were in lockdown, participants from Croatia who were not in lockdown but who were in direct contact with an infected person and underwent epidemiological measures, participants from Croatia who were in an analogous situation but not near the same infected person, and participants from Croatia who were not aware of any infected person. The survey consisted of validated scales of psychological and emotional states, and custom-made questionnaires on the digital and physical behavior of the participants. The Italy group in lockdown had higher self-perceived scores for depression, stress, post-traumatic intrusion, and avoidance, as well as the highest digital activity and physical distancing than the not-in-lockdown Croatian groups. The insight into the extent of online activities and off-line isolation allowed for the introduction of Digital Activity and Physical Distancing Scores. Self-perceived post-traumatic avoidance was higher in both the Italy and CRO-contact groups than the control CRO-no contact and CRO-unrelated groups, and higher avoidance correlated with higher Digital Activity and Physical Distancing Scores. Being in direct contact with the infected person, the CRO-contact group had no other alterations than unexpectedly lower post-traumatic hyperarousal when compared with the Italy group. The Italy group in lockdown demonstrated higher self-perceived psychological toll together with higher digital activity and physical distancing than Croatian groups not in lockdown, even when compared with the affected CRO-contact group. The study outcomes suggest that the general emergency measures influenced citizens in lockdown more than exposure to the virus through direct contact with an infected person. (shrink)

Adolescence is an important developmental period marked by a transition from primarily parental-controlled eating to self-directed and peer-influenced eating. During this period, adolescents gain autonomy over their individual food choices and eating behavior in general. While parent-feeding practices have been shown to influence eating behaviors in children, little is known about how these relationships track across adolescent development as autonomy expands. The purpose of this qualitative study was to identify factors that impact food decisions and eating autonomy among adolescents. Using (...) the food choice process model as a guide, four focus groups were conducted with 34 adolescents. Focus group discussion was semi-structured, asking teens about influences on their food choices across different food environments, their involvement with food purchasing and preparation, and perceived control over food their choices. Focus group transcripts were analyzed using deductive and inductive code creation and thematic analysis. This study found six leading influences on adolescents' food choices and identified additional factors with prominence within specific environmental contexts. This study distinguished a broader spectrum of factors influencing adolescent food choice that extend beyond “convenience” and “taste” which have previously been identified as significant contributors. The degree of control that teens reported differed by eating location, occasion, and social context. Finally, adolescents demonstrated various levels of engagement in behaviors related to their eating autonomy. Identifying the emergent themes related to adolescent autonomy was the first step toward the goal of developing a scale to evaluate adolescent eating autonomy. (shrink)

La finalidad de esta investigación es analizar en qué grado se refleja el aprendizaje por competencias en el Máster de Educación Secundaria en una Universidad española. Se ha realizado un análisis de contenido de las guías docentes mediante el software ‘ATLAS.ti’. Siguiendo un enfoque deductivo, las categorías analizadas han sido: 1) metodología activa, 2) contexto real, 3) proyectos integrados, 4) reflexión, y 5)evaluación plural. Los resultados muestran que hay pocas evidencias del diseñocurricular por competencias. En la discusión y conclusiones se (...) recoge la importanciade atender la competencia de planificación docente y otros retos en la docenciauniversitaria. (shrink)

In this study, we elaborate connections among gender, structure, and practice to suggest how social structural relations shape social sexual practice and, in the process, reshape gender relations. Using survey data from a study of a community mobilization intervention, we investigate the connection between institutional arrangements and condom use practice in sexual encounters with commercial clients and intimate partners among 410 women engaged in sex trade in a semiurban town in southern India. Multinomial logistic regression analysis uncovers the effects of (...) 16 measures of gendered structural relations in three contexts—livelihood resources, household circumstances, and community mobilization intervention priorities. We compare women who practice either consistent or inconsistent condom use with both clients and partners with a reference group of women who practice consistent condom use with clients but not with partners. Results reveal the importance of household and community relations for consistent safer sex practice over and above the organization of sex trade. Our analysis advances gender theory in two interrelated ways: We contribute to gender theorizing in the implementation of health interventions, and to gender change more generally by thinking through possibilities emerging from recursive influences between reordered institutional configurations and altered expectations in interaction. (shrink)

Resumen El presente artículo se ocupa de analizar las estrategias comunicativas de la prensa digital española destinadas a amenazar la imagen de la mujer política. Metodológicamente nos situamos en la Lingüística pragmática, en los estudios de la (des)cortesía y en el Análisis del Discurso. La hipótesis que se plantea es que los medios de comunicación que se examinan no participan en el progreso que experimenta la sociedad en materia de igualdad de género, aunque en apariencia lo hacen mediante lo políticamente (...) correcto. Sin embargo, se advierten estrategias comunicativas orientadas a la agresión. El objetivo del artículo, por tanto, se centra en comprobar si efectivamente existen estrategias comunicativas en los periódicos destinadas a agredir la imagen de la mujer política, en cuanto mujer, con la finalidad de desvirtuar y desautorizar su ejercicio político. Para dicho fin se analiza un corpus de textos periodísticos diferentes géneros recogidos en cuatro rotativos digitales españoles de distinto perfil ideológico-político. Los resultados muestran que la aplicación de la corrección política, el eufemismo o pseudo-eufemismo en el lenguaje del periódico junto a otras estrategias de comunicación ligadas al lector, son aprovechadas por el medio para encubrir posibles ataques dirigidos a la imagen de la mujer política. (shrink)