Given that there is referential uncertainty (noise) when learning words, to what extent can forgetting filter some of that noise out, and be an aid to learning? Using a Cross Situational Learning model we find a U-shaped function of errors indicative of a “Goldilocks” zone of forgetting: an optimum store-loss ratio that is neither too aggressive or too weak, but just the right amount to produce better learning outcomes. Forgetting acts as a high-pass filter that actively deletes (part of) the (...) referential ambiguity noise, retains intended referents, and effectively amplifies the signal. The model achieves this performance without incorporating any specific cognitive biases of the type proposed in the constraints and principles account, and without any prescribed developmental changes in the underlying learning mechanism. Instead we interpret the model performance as more of a by-product of exposure to input, where the associative strengths in the lexicon grow as a function of linguistic experience in combination with memory limitations. The result adds a mechanistic explanation for the experimental evidence on spaced learning and, more generally, advocates integrating domain-general aspects of cognition, such as memory, in to the language acquisition process. (shrink)

The acquisition and evolution of speech production, discourse and communication can be negatively impacted by brain malformations. We describe, for the first time, a case of developmental dynamic dysphasia (DDD) in a right-handed adolescent boy (subject D) with cortical malformations involving language-eloquent regions (inferior frontal gyrus) in both the left and the right hemispheres. Language evaluation revealed a markedly reduced verbal output affecting phonemic and semantic fluency, phrase and sentence generation and verbal communication in everyday life. Auditory comprehension, repetition, naming, (...) reading and spelling were relatively preserved, but executive function was impaired. Multimodal neuroimaging showed a malformed cerebral cortex with atypical configuration and placement of white matter tracts bilaterally and abnormal callosal fibers. Dichotic listening showed right hemisphere dominance for language and functional magnetic resonance imaging (fMRI) additionally revealed dissociated hemispheric language representation with right frontal activation for phonology and bilateral dominance for semantic processing. Moreover, subject D also had congenital mirror movements (CMM), defined as involuntary movements of one side of the body that mirror intentional movements of the other side. Transcranial magnetic stimulation and fMRI during voluntary unimanual (left and right) hand movements showed bilateral motor cortex recruitment and tractography revealed a lack of decussation of bilateral corticospinal tracts. Genetic testing aimed to detect mutations that disrupt the development of commissural tracts correlating with CMM (e.g., Germline DCC mutations) was negative. Overall, our findings suggest that DDD in subject D resulted from the underdevelopment of the left inferior frontal gyrus with limited capacity for plastic reorganization by its homologous counterpart in the right hemisphere. Corpus callosum anomalies probably contributed to hinder interhemispheric connectivity necessary to compensate language and communication deficits after left frontal involvement. (shrink)

What relationship can be established between the theory of epistemic injustices and the theory of the coloniality of power to think Latin America? This article proposes a dialogue between both theories to think about the actions of subaltern groups in Latin America that, by generating processes of struggle and organization, make epistemic injustices visible as part of their demands. This inquiry is presented in three moments: in the first, the conceptual field of epistemic injustices is defined —from Fricker, Medina and (...) Broncano— and the political/epistemic conception of coloniality of power by Anibal Quijano. In the second moment, the relations between these theories are explained. In the end, some examples of experiences of resistance in Latin America are given that can be analyzed from this dialogue. (shrink)

This paper provides an overview of women's engagement with Stoic ethics in early modern England (c. 1600–1700). It builds on recent literature in the field by demonstrating that there is a positive gender‐inclusive narrative to be told about Stoic philosophy in this time—one that incorporates women's specific concerns and responds to women's lived experiences. To support this claim, we take an interdisciplinary approach and examine several different genres of women's writing in the period, including letters, poems, plays, educational texts, and (...) moral essays. In these writings, we argue, a distinctive conception of Stoic therapy emerges. Women embrace well‐known aspects of the Stoic philosophy—such as living in agreement with nature, the importance of self‐government, and the ideal of freedom from the passions—but they also allow room for the cultivation of eupatheiai or life‐affirmative feelings, such as feelings of respect, affection, and good will toward other people. (shrink)

Quantum Mechanics is a fundamental physical theory about atomic-scale processes. It was built between 1920 and 1940 by the most distinguished physicists of that time. The accordance between the predictions of the theory and experimental results is remarkable. The physical interpretation of its mathematical constructs, however, raised unprecedented controversies. Ontological, semantic, and epistemic vagueness abound in the orthodox interpretations and have resulted in serious misunderstandings that are often repeated in textbooks and elsewhere. In this work, we identify, criticize, and clarify (...) the most spread ones. (shrink)

Macroscopic irreversible processes emerge from fundamental physical laws of reversible character. The source of the local irreversibility seems to be not in the laws themselves but in the initial and boundary conditions of the equations that represent the laws. In this work we propose that the screening of currents by black hole event horizons determines, locally, a preferred direction for the flux of electromagnetic energy. We study the growth of black hole event horizons due to the cosmological expansion and accretion (...) of cosmic microwave background radiation, for different cosmological models. We propose generalized McVittie co-moving metrics and integrate the rate of accretion of cosmic microwave background radiation onto a supermassive black hole over cosmic time. We find that for flat, open, and closed Friedmann cosmological models, the ratio of the total area of the black hole event horizons with respect to the area of a radial co-moving space-like hypersurface always increases. Since accretion of cosmic radiation sets an absolute lower limit to the total matter accreted by black holes, this implies that the causal past and future are not mirror symmetric for any spacetime event. The asymmetry causes a net Poynting flux in the global future direction; the latter is in turn related to the ever increasing thermodynamic entropy. Thus, we expose a connection between four different “time arrows”: cosmological, electromagnetic, gravitational, and thermodynamic. (shrink)

The current paper proposes the Dysexecutive Luck hypothesis; that beliefs in being unlucky are associated with deficits in executive functioning. Four studies suggest initial support for the Dysexecutive Luck hypothesis via four aspects of executive functioning. Study 1 established that self-reports of dysexecutive symptoms predicted unique variance in beliefs in being unlucky after controlling for a number of other variables previously reported to be related to beliefs around luck. Studies 2 to 4 demonstrated support for the Dysexecutive Luck hypothesis via (...) assessment of executive functioning via: two fundamental executive functions , emotional processes related to executive functioning as described by the Somatic Marker hypothesis, and higher executive functions as accessed via divergent thinking. The findings suggest that individuals’ beliefs in being unlucky are accompanied by a range of deficits in executive functioning. (shrink)

In the tradition of philosophy in Argentina, Hegel has meant to this day a source of important views on the nature of society and history. The Phenomenology of the spirit turns out to be a provocation of the thought that finds in Julio De Zan a privileged interpreter. From his academic beginnings as a professor and researcher, he was initially interested in this work. In the context of this dossier dedicated to “Hegel’s philosophy in Argentina”, we propose an analysis of (...) two articles by Julio De Zan published at different times: “Sense and validity of the Phenomenology of the spirit” and “Experience and praxis. Method questions in Hegel’s Phenomenology of the Spirit”. (shrink)

Nuestro trabajo se orienta a presentar lo desarrollado por Hegel sobre el pensamiento de Descartes en sus Vorlesungen über die Geschichte der Philosophie, teniendo en cuenta tres momentos: 1) la opción de Hegel por los Principios; 2) el lugar de Descartes en la “historia de la filosofía”; y 3) algunas conclusiones en torno a la tesis de que “avanzar en el pensamiento” sólo es posible en la medida en que uno reconozca a la historia de la filosofía no como una (...) “galería de opiniones” sino como una fuente inagotable de problemas y cuestiones. (shrink)

Este documento ofrece una propuesta desde la perspectiva de la bioética para la elaboración de un protocolo de triaje en el contexto de la pandemia de COVID-19. Dicha propuesta incluye recomendaciones sobre las normas procedimentales y normas sustantivas que deben regir la asignación y reasignación de recursos terapéuticos en condiciones de escasez extrema.

We are currently seeing a revival of interest in Aquinas's moral thought among Christian ethicists, both Protestant and Catholic. Although recent studies of his moral thought have touched on a number of topics, the majority of these have focused on his account of the virtues and their place in the Christian life. Probing the questions of the relation of virtue and law, the role of reason and will, and the place of the passions in Aquinas's moral theology, I will examine (...) recent studies by Diana Cates, Pamela Hall, Simon Harak, James Keenan, Daniel Nelson, Daniel Westberg, and Paul Waddell. In different ways these studies return us repeatedly to the vexed and unresolved question of the scope of human freedom. (shrink)

El núcleo central de este trabajo consiste en presentar a la Crítica de la Facultad de Juzgar de Kant como un recurso significativo en la formación del pensamiento político de Hanna Arendt. Según la interpretación que la autora realiza del juicio reflexivo y su vinculación con la comunidad ampliada presente en la concepción kantiana de sensus communis, es posible considerar una redefinición del juicio ahora más ligada a la contingencia de la acción y a la pluralidad de los espectadores en (...) el ámbito de la esfera política. En síntesis, se trata de señalar los aspectos más problemáticos de la localización del legado de Kant en los últimos trabajos de Arendt a la vez que llamar la atención sobre la cuestión concerniente a la importancia del aporte kantiano a los ejes centrales del debate de la teoría política contemporánea. (shrink)

La tarea de la filosofía consiste, para Fichte, en elevar a la conciencia al ámbito de su actuar originario de la mano de la reflexión trascendental. El filósofo sigue al Yo en su génesis, y su sistema se convierte en una "historia pragmática del espíritu humano". Esta "intuición intelec-tual" descu..

El espíritu científico del siglo XVII, inclinado a demostrar la verdadmore geométrico y a sostener el ideal de un conocimiento seguro que dé cuenta de la totalidad de lo real partiendo de principios evidentes, influye de manera deteminante sobre la justificación racional de las condiciones más adecuadas para la ordenación de la vida en sociedad. En esta línea se inscribe el ambicioso proyecto de Tomas Hobbes, al postular una filosofía práctica demostrativa capaz de articular definitivamente la naturaleza humana el "estado (...) natural" de la sociedad y el ideal de un orden jurídico-normativo cuya expresión máxima, el Estado como ente de razón, asume la forma de un "cuerpo artificial" construido técrucamente por los hombres. La contrastación con el pensamiento de Aristóteles, permite ver que con Hobbes no sólo nos encontramos frente auna original teoría del poder, sino ante la manifestación naciente de un movimiento cultural, filosófico, científico y político, cuyos efectos de sentido nos son hoy contemporáneos. (shrink)

The Phenomenology of Spiritis the crowning point of several projects elaborated by Hegel between the years 1803-1807, and anticipates in some sense his Science ofLogic. The aim of this paper is to lay out some basic meditations about the origins of this work in connection with the courses of the Jena period, the possible conceptual tranformations of the Phenomenologyduring the time devoted to its writing, and its links with Hegel's posterior piece of work, the Science of Logic.

“In this article we sketch out the landscape for this Special Issue on anticipating and embedding the societal challenge of nanotechnologies. Tools that actors may choose to employ for these processes are articulated, and further explored through the introduction of the seven articles which comprise this Issue. Taken together, these articles create a cogent narrative on the societal challenges posed by nanotechnologies. They are drawn together by three distinct themes, each of which is briefly considered within this context of this (...) Introductory article”. (shrink)

Dissemination and hermeneutics should not be extremely contrasted. But it would nevertheless be deceptive to consider the former only as a “successor” or a mere offshoot –though in a different direction– of the latter. While hermeneutics, as understood by Gadamer, has its origin in the conscience of..

Hegel reconoce en la “idealidad” de la mónada un antecedente necesario para la comprensión lógico-ontológica del “ser para sí” en el contexto de la superación de la oposición entre finito e infinito de la lógica del ser, a la vez que la anticipación de la formulación idealista del principio “la sustancialidad es subjetividad”. A los efectos de la comprobación de esta tesis el presente artículo comienza por las nociones de “representación” e “idealismo” a partir de las cuales Kant se permite (...) asociar la doctrina de Leibniz a un “dogmatismo metafísico”, dado que Hegel presupone su conocimiento. Para pasar en un segundo momento a la crítica posición de Hegel en torno a la “idealidad” de la mónada, en la que ésta se mide con el aporte de interpretaciones que el propio idealismo alemán –transcendental, primero, y subjetivo, después- fue generando. (shrink)

The main thesis of this dissertation is set out in its very title, and to prove it will be necessary to eliminate the usual negative or melodramatic meaning of the two concepts that appear there and take them rather as the two extremes of the dialectical process of redefining the sociopersonal consciousness. In accordance with this, any catastrophe implies the violent breakup of the normal conditions of existence due to a natural or human factor whose direct consequences each one must (...) understand and overcome on the triple ontological, social, and psychological determinations of the self. For its part, tragedy stands for the phase of critical and reflective integration that follows the catastrophe, which goes a lot beyond the sheer negativity of sorrow and even death, since even if the person or the people carried away by the catastrophe die, others will be able to make the most of that and the sociopersonal consciousness will be rearticulated. Of course, this implies that the self at issue is not only the individual one, so that other members of the lifeworld must be considered for the phenomenon to reveal a new or critical sense of existence beyond any previous approach to it. Thus, although there is an undeniably negativity throughout, it aims at a deeper level of comprehension of existence, which finally implicates that catastrophe is contextualized in a concrete cultural framework and not only as a sudden unsettlement and that tragedy is accordingly conceived as a philosophical tool more than as a literary genre that deals with the cruelty of fate. To get its aims, the dissertation will be divided into three sections of variable length: in the first one it will be analysed the experience and sense of catastrophe; in the second one, that of tragedy; in the third one, it will briefly be shown why understanding the nexus of both phenomena is axial for the current intellectual dynamics. (shrink)

The verb “to conjure” is a complex one, for it includes in its standard definition a great range of possible actions or operations, not all of them equivalent, or even compatible. In its most common usage, “to conjure” means to perform an act of magic or to invoke a supernatural force, by casting a spell, say, or performing a particular ritual or rite. But “to conjure” is also to influence, to beg, to command or constrain, to charm, to bewitch, to (...) move or convey, to imagine, to visualize, to call to mind, or to remember. —Rachael DeLue 2012, para 1. When we create with our Brown hands, feminine energy, and full spirits, we conjure. To exist, survive, and thrive in these bodies is a continuous act of conjuring. Our walks conjure. Our smiles conjure. Our tears conjure. Our laughs conjure. Our words conjure. Our artworks are conjurings. We, a Black/Filipina-American woman, a Dominican-American, and a Black-American woman, are guided by our solidarity with one another and all other Black and Brown female identifying persons whose raced and gendered subjectivities exist both inside and outside of colonization, white supremacy, and patriarchy. We bring to life our colored imaginations and curiosities, and share them with the world. We are united by our need for safety, autonomy as beings, dissolution of trauma, and desire to ask, “What would happen if I…?” Imaginative, curious Women of Color (WoC) founded the underground railroad, guided captured Africans and Tainos to the mountains, ignited the Civil Rights Movement, organized laborers and immigrants, birthed the #BlackLivesMatter Movement, conceived the #MeToo Movement, and so much more. Like our kindred counterparts, we have an unrelenting urge to examine, question, wonder, desire, speak to, lead, be curious, and “conjure.” As practicing artists and art educators, our critical arts-based practices are grounded in intersectional feminisms like Womanism, Black Feminist Theory, and Chicana Feminist Theory, which allow us to do these very things. (shrink)

A conservative extension of first order logic, suitable for circumscriptive inference, is introduced.

A reduction algebra is defined as a set with a collection of partial unary functions (called reduction operators). Motivated by the lambda calculus, the Church-Rosser property is defined for a reduction algebra and a characterization is given for those reduction algebras satisfying CRP and having a measure respecting the reductions. The characterization is used to give (with 20/20 hindsight) a more direct proof of the strong normalization theorem for the impredicative second order intuitionistic propositional calculus.

The epistemological problem of objectivism in the production of sociological knowledge confronts the researcher with the question of the risk involved in substituting social reality by the idealizations and abstractions created by science. Without a doubt, the subject seems intriguing and requires its thematization facing toward and appropriate foundation of sociological concepts. In order to address that problem, the article aims to recover, from a hermeneutic perspective, a phenomenologically inspired epistemology in the works of Alfred Schutz and Harold Garfinkel. To (...) achieve this goal we first analyse Schutzian contributions in the context of the correspondence held with Talcott Parsons. There the author thoroughly discusses the difficulties that social sciences go through regarding the foundation of its concepts. Secondly, we revise unpublished bibliographical heritage from Garfinkel’s work who -interested in the epistemological debate between Schutz and Parsons- picks up the epistemological problem again. We will sustain that unlike Schutz who proposes a philosophical response consisting in the articulation of an ontology of the life-world, Garfinkel develops a methodological answer which aims to illuminate the practical reasoning and the methodological decisions of researchers in order to avoid the substitution of social reality by the idealities of the scientific reflection. El problema epistemológico del objetivismo en la producción de conocimiento sociológico confronta al investigador con la pregunta acerca del riesgo que conlleva la sustitución de la realidad social por las idealidades y las abstracciones creadas por la ciencia. A fin de abordar ese problema, el artículo se propone recuperar, desde una perspectiva hermenéutica, una epistemología de inspiración fenomenológica en los textos de Alfred Schutz y de Harold Garfinkel. Para ello se analizan, en primer lugar, los aportes de Schutz en la correspondencia mantenida con Talcott Parsons pues es allí donde el autor discute ampliamente las dificultades por las que atraviesan las ciencias sociales con relación a la fundamentación de sus conceptos. En segundo lugar, se revisan acervos bibliográficos inéditos de la obra de Garfinkel quien, interesado por el debate epistemológico entre Schutz y Parsons, retoma ese mismo problema epistemológico. Sostendremos que, a diferencia de Schutz quien propone una salida filosófica que consiste en la articulación de una ontología del mundo de la vida, Garfinkel elabora una respuesta de carácter metodológico que apunta a iluminar los razonamientos prácticos y las decisiones metodológicas de los investigadores a fin de evitar la sustitución de la realidad social por las idealidades de la reflexión científica. (shrink)

The scholarly attention lavished on William James’ case study in the “Sick Soul” lecture in The Varieties of Religious Experience of a man disturbed by the vision of an epileptic patient has generally not approached this case as a religious experience. To deepen our understanding of religious experience, I show that this case study can be understood as religious using elements of the theory of religion expounded throughout James’ text. I argue that it can be understood as a stage in (...) the process of conversion James lays out. The omission of a subsequent stage highlights James’ reasons for rejecting healthy-mindedness as a philosophically adequate perspective and illustrates his claim that the strivings of the conscious mind can stunt the conversion process. Drawing on other philosophical, psychological, and literary texts, I argue that the content of the vision James describes points to solitude as a source of religious disquiet. (shrink)