While influential works since the 1970s have widely assumed that imitation is an innate skill in both human and non-human primate neonates, recent empirical studies and meta-analyses have challenged this view, indicating other forms of reward-based learning as relevant factors in the development of social behavior. The visual input translation into matching motor output that underlies imitation abilities instead seems to develop along with social interactions and sensorimotor experience during infancy and childhood. Recently, a new visual stream has been identified (...) in both human and non-human primate brains, updating the dual visual stream model. This third pathway is thought to be specialized for dynamics aspects of social perceptions such as eye-gaze, facial expression and crucially for audio-visual integration of speech. Here, we review empirical studies addressing an understudied but crucial aspect of speech and communication, namely the processing of visual orofacial cues and its integration with vocal auditory cues. Along this review, we offer new insights from our understanding of speech as the product of evolution and development of a rhythmic and multimodal organization of sensorimotor brain networks, supporting volitional motor control of the upper vocal tract and audio-visual voices-faces integration. (shrink)

Most clinical neurofeedback studies based on functional magnetic resonance imaging use the patient's own neural activity as feedback. The objective of this study was to create a subject-independent brain state classifier as part of a real-time fMRI neurofeedback system that can guide patients with depression in achieving a healthy brain state, and then to examine subsequent clinical changes. In a first step, a brain classifier based on a support vector machine was trained from the neural information of happy autobiographical imagery (...) and motor imagery blocks received from a healthy female participant during an MRI session. In the second step, 7 right-handed female patients with mild or moderate depressive symptoms were trained to match their own neural activity with the neural activity corresponding to the “happiness emotional brain state” of the healthy participant. The training was carried out using the rt-fMRI NF system guided by the brain-state classifier we had created. Thus, the informative voxels previously obtained in the first step, using SVM classification and Effect Mapping, were used to classify the Blood-Oxygen-Level Dependent activity of the patients and converted into real-time visual feedback during the neurofeedback training runs. Improvements in the classifier accuracy toward the end of the training were observed in all the patients [Session 4–1 Median = 6.563%; Range = 4.10–27.34; Wilcoxon Test, 2-tailed p = 0.031]. Clinical improvement also was observed in a blind standardized clinical evaluation [HDRS CE2-1 Median = 7; Range 2 to 15; Wilcoxon Test, 2-tailed p = 0.016], and in self-report assessments [BDI-II CE2-1 Median = 8; Range 1–15; Wilcoxon Test, 2-tailed p = 0.031]. In addition, the clinical improvement was still present 10 days after the intervention [BDI-II CE3-2_Median = 0; Range −1 to 2; Wilcoxon Test, 2-tailed p = 0.50/ HDRS CE3-2 Median = 0; Range −1 to 2; Wilcoxon Test, 2-tailed p = 0.625]. Although the number of participants needs to be increased and a control group included to confirm these findings, the results suggest a novel option for neural modulation and clinical alleviation in depression using noninvasive stimulation technologies. (shrink)

The question whether ethical behavior is biologically determined may refer either to the capacity for ethics (i.e., the proclivity to judge human actions as either right or wrong), or to the moral norms accepted by human beings for guiding their actions. I herein propose: (1) that the capacity for ethics is a necessary attribute of human nature; and (2) that moral norms are products of cultural evolution, not of biological evolution. Humans exhibit ethical behavior by nature because their biological makeup (...) determines the presence of three necessary conditions for ethical behavior: (i) the ability to anticipate the consequences of one’s own actions; (ii) the ability to make value judgments; and (iii) the ability to choose between alternative courses of action. Ethical behavior came about in evolution not because it is adaptive in itself, but as a necessary consequence of man’s eminent intellectual abilities, which are an attribute directly promoted by natural selection. That is, morally evolved as an exaptation, not as an adaptation. Since Darwin’s time there have been evolutionists proposing that the norms of morality are derived from biological evolution. Sociobiologists represent the most recent and most subtle version of that proposal. The sociobiologists' argument is that human ethical norms are sociocultural correlates of behaviors fostered by biological evolution. I argue that such proposals are misguided and do not escape the naturalistic fallacy. The isomorphism between the behaviors promoted by natural selection and those sanctioned by moral norms exist only with respect to the consequences of the behaviors; the underlying causations are completely disparate. (shrink)

En el presente artículo se busca dilucidar cómo Axel Honneth aborda el problema de la dominación en Crítica del poder y La lucha por el reconocimiento. En la primera obra, el autor analiza de qué forma los sujetos sociales construyen prácticas de dominación y no se limitan a legitimarlas a posteriori. Esta concepción del dominio pone a Honneth ante el siguiente problema: ¿comprendería su planteo, además de la construcción activa de los marcos institucionales que regulan las relaciones sociales, el hecho (...) de que los distintos grupos den asentimiento a “formas superfluas de dominación”? El primer objetivo de mi trabajo es desarrollar este problema tal y como se presenta en Crítica del poder, el segundo, apunta a retraducir esa cuestión según los términos teóricos que Honneth introduce en trabajos posteriores al hablar de una lucha por el reconocimiento. Estos trabajos buscan comprender el conflicto que se suscita en torno al reconocimiento entre los diferentes grupos sociales y del que depende que sean considerados miembros legítimos de una comunidad. (shrink)

El artículo examina la importancia que ha tenido para los miembros de la Escuela de Chartres y especialmente para la concepción cosmológica, antropológica y estética de Bernardo Silvestre, la lectura directa del Asclepio hermético. Para llegar a este resultado se expone la historia de las relaciones entre el Asclepio latino y el pensamiento cristiano desde el siglo II al XII y se demuestra el interés que adquieren para entender estas relaciones los escritos hermético gnósticos del Códice VI de la biblioteca (...) copta de Nag Hammadi. (shrink)

Between Faith and Reason is a description of the interaction between our need to believe and our ability to reason. Faced with a reality that threatens him emotionally, man develops and adheres to articles of faith that help him cope with that reality. The author cuts through conflicting interpretations of the human condition to a simple but powerful internal dynamic which points to the fact that reason is always disequilibrating. he book attempts no ultimate explanation of the conflict between rational (...) knowledge and emotional uncertainty, but calls attention to its presence and emphasizes the need to cast a comprehensive and honest view over this conflict if we are ever to make sense of our actions. (shrink)

El artículo señala las limitaciones de dos tradiciones del liberalismo político en tomo a la cuestión de la justicia distributiva en el contexto latinoamericano. El autor muestra la necesidad de un replanteamiento del concepto de justicia, con el fin de conseguir una base normativa más adecuada para la evaluación y crítica de las formas particulares de distribución actualmente existentes de los bienes sociales.

Aristóteles y G.E. Moore, los dos fundadores de la filosofía moral en épocas diferentes, son una especie de símbolo del combate que esta disciplina ha debido librar entre la Escila de un intelectualismo extremo y la Caribdis de un antiintelectualismo igualmente extremo. Los dos han luchado en pro de cierto cognitivismo en materia ética ¿Han escapado por ello a las tentaciones y a los reclamos del no-cognitivismo? ¿Y cuál de los dos se halla más cerca de la vida moral, tal (...) como ella transcurre realmente? ¿Cuál es el lugar efectivo de la razón en ésta y en la ética que la piensa? El autor investiga estas cuestiones en su obra, dedicadas, respectivamente, al dominio, las metas y los métodos de la filosofía moral. (shrink)