When visual attention is directed away from a stimulus, neural processing is weak and strength and precision of sensory data decreases. From a computational perspective, in such situations observers should give more weight to prior expectations in order to behave optimally during a discrimination task. Here we test a signal detection theoretic model that counter-intuitively predicts subjects will do just the opposite in a discrimination task with two stimuli, one attended and one unattended: when subjects are probed to discriminate the (...) unattended stimulus, they rely less on prior information about the probed stimulus’ identity. The model is in part inspired by recent findings that attention reduces trial-by-trial variability of the neuronal population response and that they use a common criterion for attended and unattended trials. In five different visual discrimination experiments, when attention was directed away from the target stimulus, subjects did not adjust their response bias in reaction to a change in stimulus presentation frequency despite being fully informed and despite the presence of performance feedback and monetary and social incentives. This indicates that subjects did not rely more on the priors under conditions of inattention as would be predicted by a Bayes-optimal observer model. These results inform and constrain future models of Bayesian inference in the human brain. (shrink)

We present a longitudinal computational study on the connection between emotional and amodal word representations from a developmental perspective. In this study, children's and adult word representations were generated using the latent semantic analysis (LSA) vector space model and Word Maturity methodology. Some children's word representations were used to set a mapping function between amodal and emotional word representations with a neural network model using ratings from 9‐year‐old children. The neural network was trained and validated in the child semantic space. (...) Then, the resulting neural network was tested with adult word representations using ratings from an adult data set. Samples of 1210 and 5315 words were used in the child and the adult semantic spaces, respectively. Results suggested that the emotional valence of words can be predicted from amodal vector representations even at the child stage, and accurate emotional propagation was found in the adult word vector representations. In this way, different propagative processes were observed in the adult semantic space. These findings highlight a potential mechanism for early verbal emotional anchoring. Moreover, different multiple linear regression and mixed‐effect models revealed moderation effects for the performance of the longitudinal computational model. First, words with early maturation and subsequent semantic definition promoted emotional propagation. Second, an interaction effect between age of acquisition and abstractness was found to explain model performance. The theoretical and methodological implications are discussed. (shrink)

In this study, we analyzed the relationship between the amodal (semantic) development of words and two popular emotional norms (emotional valence and arousal) in English and Spanish languages. To do so, we combined the strengths of semantics from vector space models (vector length, semantic diversity, and word maturity measures), and feature-based models of emotions. First, we generated a common vector space representing the meaning of words at different developmental stages (five and four developmental stages for English and Spanish, respectively) using (...) the Word Maturity methodology to align different vector spaces. Second, we analyzed the amodal development of words through mixed-effects models with crossed random effects for words and variables using a continuous time metric. Third, the emotional norms were included as covariates in the statistical models. We evaluated more than 23,000 words, whose emotional norms were available for more than 10,000 words, in each language separately. Results showed a curve of amodal development with an increasing linear effect and a small quadratic deceleration. A relevant influence on the amodal development of words was found only for emotional valence (not for arousal), suggesting that positive words have an earlier amodal development and a less pronounced semantic change across early lifespan. (shrink)

"El presente volumen colectivo recoge las ideas sobre la relación entre filosofía, política y religión de pensadores capitales de la segunda mitad del siglo XX. Entre otros, Berlin, Arendt, Oakeshott, Aron, Hayek, Popper, Habermas, Taylor, Ratzinger, Strauss o Rawls. Los lectores encontrarán que el cuadro general que se desprende de su lectura no permite reducir su contenido a una idea fuerza o a una tesis general que unifique el libro. Los autores tratados, provenientes de disciplinas distintas, con intereses temáticos y (...) sensibilidades diversas, coinciden, sin embargo, en ofrecer una reconsideración teórica del papel de la religión en la sociedad y la política contemporáneas. Esta pluralidad de posiciones se presenta al lector como fruto de la indeterminación de las sociedades políticas occidentales respecto al problema de la religión. De esta forma, los clásicos contemporáneos que se visitan nos invitan a una discusión profunda y matizada, que servirá para intentar distinguir, de manera equilibrada, tanto los elementos donde religión y política han sido y son esferas enfrentadas, como aquellos donde el encuentro entre Atenas y Jerusalén produce una relación positiva."_ Editorial. (shrink)

La recepción durante el siglo XX se preguntó si la filosofía nietzscheana era a-, im- o anti-política, es decir, si podía ser asimilada por la democracia, o si era antimoderna, elitista y reaccionaria. El italiano Roberto Esposito ha propuesto leerla como formando e informando el paradigma de la biopolítica. Se discuten cuatro lecturas de esa biopolítica: como formadora del paradigma de la inmunidad, como tanatopolítica, como liberal y neoliberal, y como biopolítica afirmativa. Twentieth-century readers wondered if Nietzschean philosophy was apolitical, (...) impolitic, or anti-political; that is, if it could be assimilated by democracy or if it was antimodern, elitist, and reactionary. The Italian philosopher Robert Esposito has proposed reading Nietzsche's philosophy as forming and informing the biopolitical paradigm. Four readings of these biopolitics are discussed: as part of the paradigm of immunity, as thanatopolitics, as liberal and neoliberal, and as affirmative biopolitics. (shrink)

Este artículo pretende establecer los nexos y asociaciones de los conceptos fundamentales que sustentan la obra filosófica, pero sobre todo la critica literaria de Rafael Gutiérrez Girardot. Hegel y Schlegel aparecen como pilares que fundamentan sus interpretaciones criticas y sobre los cuales se abre el horizonte de América Latina; a través de autores como Jorge Luis Borges, Alfonso Reyes y César Vallejo.

Este artículo pretende establecer los nexos y asociaciones de los conceptos fundamentales que sustentan la obra filosófica, pero sobre todo la critica literaria de Rafael Gutiérrez Girardot. Hegel y Schlegel aparecen como pilares que fundamentan sus interpretaciones criticas y sobre los cuales se abre el horizonte de América Latina; a través de autores como Jorge Luis Borges, Alfonso Reyes y César Vallejo.

Flórez-Miller, Guillermo. "El concepto de la voluntad libre en la Introducción a los Principios de la filosofía del derechode G.W.F. Hegel". Pensamiento y Cultura [Universidad de la Sabana] 16.1 (2013): 18-40.

Ésta es una contribución al debate originado por Guillermo Hurtado y proseguido por Manuel García-Carpintero y Horacio Luján Martínez, con relación al sentido y a los objetivos de la filosofía analítica, especialmente en Iberoamérica. En ella se defiende que las tesis de Hurtado también se pueden aplicar al cultivo de filosofías no analíticas, pues en realidad conciernen a la filosofía profesional que se practica dentro y fuera de Iberoamérica. Se sostiene, además, que si bien la profesionalización y la masificación (...) de la filosofía son fenómenos en sí mismos positivos, tienen consecuencias colaterales negativas respecto de la calidad de la filosofía que se produce. También se aduce que el que una propuesta filosófica no tenga una inmediata relevancia existencial o política no la hace menos importante, siempre que en algún sentido amplíe las fronteras del conocimiento. This is a commentary on a debate originated by Guillermo Hurtado and followed up by Manuel García-Carpintero and Horacio Luján Martínez, in regards to the meaning and objectives of analytic philosophy, especially in Latin America. This paper holds that Hurtado's theses are also true about non analytic philosophy, since they are about professional philosophy, as practiced both inside and outside Latin America. Professionalization and popularization of philosophy, while positive phenomena in themselves, have negative collateral consequences on the quality of philosophy produced in the present moment. it is also held that the fact that a given philosophical proposal has no immediate existential or political relevance doesn't make it less important, as long as in some sense it widens the frontiers of knowledge. (shrink)

The goal of this study was to introduce a model explaining how managers' attitudes, subjective norms, attributions, and the individualism-collectivism cultural dimension affect the way managers' deal with employee bribery in organizations. Twenty-six internal and external attributions related to bribery were identified through a series of structured interviews with 65 subject matter experts. These attributions, together with the other variables in the model, were evaluated by 354 Ecuadorian managers. Hierarchical regression analyses indicated that attitudes and external attributions significantly predicted managers' (...) intentions to discipline employees who accepted a bribe. In addition, external attributions mediated the relationship between individualism-collectivism and intent to discipline corrupt employees. Implications for the management of bribery in Latin American organizations are discussed. (shrink)

En el escrito que aquí se rescata, publicado originalmente por la Universidad Nacional del Litoral en 1936, Vicente Fatone (Buenos aires, 1903-1962) concibe la danza y la arquitectura como modos privilegiados de acceso a lo absoluto. El filósofo argentino identifica la arquitectura como un infinito espacial y con una ascética, y a la danza, como infinito temporal, con una mística: mientras la primera es entendida como instauración de un mundo, la segunda es considerada como un ejercicio de libertad, que expresa (...) lo divino que habita en el ser humano a través de un principio dinámico. (shrink)

Cuando G. K. Chesterton en su corto ensayo Aproximación al tomismo quiere resumir los descarríos o los logros de los sabios sobre la realidad, muestra las tres controversias generales del pensamiento: (1) la disolución de las cosas en las soluciones químicas del escepticismo, que es la controversia entre el flujo o la transición informe; (2) la difícil clasificación de las unidades ideales, que es la controversia entre realismo y nominalismo; y (3) el reconocimiento, también arduo, de la variedad cuando a (...) la vez se admite la unidad, que es el viejo acertijo metafísico de la unidad y lo múltiple. Este libro se concentra en la segunda controversia, sin el olvido de los otros dos problemas, en la persona de Guillermo de Ockham, el lógico sagaz que vivió entre los siglos XIII y XIV d.C. Las relaciones de la Literatura con la Filosofía o con la ciencia no se acaban en la especulación poética o estética de motivos filosóficos, mucho más que esto, se extienden a la práctica o ejercicio de los conceptos filosóficos. Erguido en este principio, he rescatado a la figura de Guillermo de Ockham, así como al debate por la realidad o no de las Ideas, en composiciones literarias de Carlos Fuentes, Jorge Luis Borges, Umberto Eco, el ya mencionado G. K. Chesterton, y más. (shrink)

We present a mathematical approach to defeasible reasoning based on arguments. This approach integrates the notion of specificity introduced by Poole and the theory of warrant presented by Pollock. The main contribution of this paper is a precise, well-defined system which exhibits correct behavior when applied to the benchmark examples in the literature. It aims for usability rather than novelty. We prove that an order relation can be introduced among equivalence classes of arguments under the equi-specificity relation. We also prove (...) a theorem that ensures the termination of the process of finding the justified facts. Two more lemmas define a reduced search space for checking specificity. In order to implement the theoretical ideas, the language is restricted to Horn clauses for the evidential context. The language used to represent defeasible rules has been restricted in a similar way. The authors intend this work to unify the various existing approaches to argument-based defeasible reasoning. (shrink)

O artigo – desde uma perspectiva da educação como direito humano universal que reconhece a diversidade – realiza um recorrido panorâmico por uma série de dimensões da educação intercultural no ensino superior do Chile, especialmente universitária, discute criticamente a situação atual da interculturalização na universidade – entendida genericamente – e conclui com algumas perguntas que podem orientar pesquisas ou decisões que levem a que o ensino superior considere os direitos indígenas, permita a expressão de sua cultura, promova a interculturalidade, forme (...) os técnicos e profissionais que requerem o desenvolvimento da sociedade e das comunidades e enriqueça a docência e a ciência com outros paradigmas de conhecimento. Desse modo, que reconheça e valide a interculturalidade e os aportes das culturas indígenas a sua identidade, formação e produção de conhecimento. Trata das comunidades e dos estudantes indígenas em geral, mas aprofunda a situação desde o povo mapuche, embasando-se em projetos de pesquisa e desenvolvimento e em experiências em e desde a Região da Araucanía. A proposta se centra na ideia de que o direito à educação, desde a lei e inconstitucionalidade atual, se centra no sistema escolar formal de ensino básico e médio e não considera a educação superior ou a um sistema de educação continuado como direito universal, no qual poderia se especificar uma condição especial aos estudantes indígenas. Por isso, hoje se luta pela igualdade de oportunidades de inclusão entre indígenas e não indígenas. Palavras-chave: Ensino Superior. Interculturalidade. Cultura mapuche. (shrink)

This paper offers an exposition of Husserl's mature philosophy of mathematics, expounded for the first time in Logische Untersuchungen and maintained without any essential change throughout the rest of his life. It is shown that Husserl's views on mathematics were strongly influenced by Riemann, and had clear affinities with the much later Bourbaki school.

Recent work in formal semantics suggests that the language system includes not only a structure building device, as standardly assumed, but also a natural deductive system which can determine when expressions have trivial truth-conditions (e.g., are logically true/false) and mark them as unacceptable. This hypothesis, called the `logicality of language', accounts for many acceptability patterns, including systematic restrictions on the distribution of quantifiers. To deal with apparent counter-examples consisting of acceptable tautologies and contradictions, the logicality of language is often paired (...) with an additional assumption according to which logical forms are radically underspecified: i.e., the language system can see functional terms but is `blind' to open class terms to the extent that different tokens of the same term are treated as if independent. This conception of logical form has profound implications: it suggests an extreme version of the modularity of language, and can only be paired with non-classical---indeed quite exotic---kinds of deductive systems. The aim of this paper is to show that we can pair the logicality of language with a different and ultimately more traditional account of logical form. This framework accounts for the basic acceptability patterns which motivated the logicality of language, can explain why some tautologies and contradictions are acceptable, and makes better predictions in key cases. As a result, we can pursue versions of the logicality of language in frameworks compatible with the view that the language system is not radically modular vis-a-vis its open class terms and employs a deductive system that is basically classical. (shrink)

: In this paper I will examine two conceptions of philosophy that were defended in Latin America during the last century. I believe that both models have to be put away and that we must build a new one, recovering elements of both of them. At the end of my paper I will consider very briefly what can we learn from this in order to construct a genuine philosophical dialogue between the United States and Latin America.

KOINONIA/ASETT MINGA/MUTIRÃO DE REVISTAS DE TEOLOGIA LATINO-AMERICANAS Teología de la Liberación y movimiento ecuménico: breve reflexión desde una práctica (Liberation Theology and ecumenical movement: a brief reflection from praxis).

In this chapter, we discuss a selection of current views of the neural correlates of consciousness (NCC). We focus on the different predictions they make, in particular with respect to the role of prefrontal cortex (PFC) during visual experiences, which is an area of critical interest and some source of contention. Our discussion of these views focuses on the level of functional anatomy, rather than at the neuronal circuitry level. We take this approach because we currently understand more about experimental (...) evidence at this coarse level and because these results are appropriate for arbitrating between current theoretical frameworks. We discuss the Two-Visual-Systems Hypothesis (Milner & Goodale 1995; 2006), Local Recurrency (Lamme 2010; Lamme 2006), Higher Order (Lau 2008; Lau & Rosenthal 2011) and Global Workspace theories (Baars 1997; Baars 2005; Dehaene & Naccache 2001; Dehaene 2014). Despite the apparent stark differences between conscious and unconscious perceptual processing, available evidence suggests that their neural substrates must be largely shared. This indicates that the difference in neural activity between conscious and unconscious perceptual processing is likely to be subtle and highly specialized. We argue that current experimental evidence about the involvement of specific activity in prefrontal cortex supports the higher order neural theory of consciousness. In consequence, imaging techniques that focus only on marked differences between conscious and unconscious level of activity are likely to be insensitive to the relevant neural activity patterns that underlie conscious experiences. Finally, it follows from the evidence we discuss that the functional advantages of conscious over unconscious perceptual processing may be more limited than commonly thought. (shrink)