Du point de vue méthodologique et épistémologique, la vision occupe une place privilégiée dans les œuvres de Galien de Pergame, ce qui explique les tentatives répétées de ce dernier pour en expliquer le fonctionnement. En partie grâce à la dissection et à la vivisection pratiquées sur des animaux de différentes espèces, il développa une connaissance détaillée de l’anatomie de l’œil, du nerf optique, du cerveau, des muscles oculaires et du système vasculaire cérébral et oculaire. Il utilisa avec habileté cet impressionnant (...) savoir anatomique pour élaborer une explication détaillée de la physiologie de la vision. Pour expliquer comment voient les êtres humains, il fit également appel à l’optique mathématique, notamment à l’optique euclidienne. Cependant, en dépit d’efforts remarquables pour intégrer anatomie, physiologie et mathématiques dans une unique théorie cohérente de la vision, une analyse plus attentive montre que son explication de la vision n’est pas exempte de lacunes non négligeables, de difficultés non résolues et de tensions internes. (shrink)

The present article explores the views of al-Jāḥiẓ, Abū Bakr al-Rāzī, and Fakhr al-Dīn al-Rāzī - three pre-modern thinkers of the Islamic world outside the Peripatetic tradition - on the question o...

Galen is criticized for combining Plato’s tripartition-cum-trilocation of the soul, in which each part constitutes its own source of motivation, with the demand that the faculty of voluntary motion is limited to the rational part, being the only one located in the brain and having access to the relevant nerves. While scholars have concentrated on small nerves as connective organs, this paper focuses on thepneuma, blood and innate heat. When the latter is increased, the irrational parts can affect the brain’s (...) function to such an extent that the rational part’s volitions are reduced to their own desires. (shrink)

_ Source: _Volume 61, Issue 1, pp 82 - 109 Galen talks about tension, _tonos_, in a physiological sense, which seems to be related to either the innate heat of the living being, the good mixture of its humors, or the body’s _pneuma_. This paper shows that Galen, with some important distinctions concerning the substance of the soul, derives this use of _tonos_ from the Stoics. But beyond that, it shows that Galen uses _tonos_ in a strict psychological sense derived (...) from Plato as well, and integrates it in his characterization of the operations of the spirited part of the soul. (shrink)

This article examines the operation of “skilled feelings” in metaphors for the heart-mind (xin 心) as ruler of the body. It focuses on three Chinese philosophical texts in contexts outside of the “Confucian” texts that have dominated the emerging field of comparative virtue ethics—the Zhuangzi 莊子, Sunzi Bingfa 孫子兵法 (Sunzi’s Art of War), and Huangdi Neijing 黃帝內經 (The Yellow Emperor’s Classic of Internal Medicine)—and briefly contrasts the Chinese accounts to influential Greek metaphors of the mind as ruler of the body (...) and passions. (shrink)

Entender la dimensión moral de la dietética en la antigüedad exige investigar los avances de las investigaciones médicas gracias a las cuales se establecen las bases de la psicología moral. Por esta razón en este artículo se exploran algunos pasajes de Sobre las opiniones de Hipócrates y Platón, escrito por el médico alejandrino Galeno de Pérgamo (I-II d. C). Según los hallazgos de su investigación sobre la naturaleza del alma, aun cuando ésta tuviera una sustancia propia, ajena a las mezclas (...) humorales del cuerpo, es preciso admitir que sus facultades, incluida la racional, pueden ser ayudadas o impedidas por el equilibrio o por el desequilibrio de los humores del cuerpo. Esta es la tesis que defenderá en su escrito de madurez titulado Las facultades del alma siguen los temperamentos del cuerpo. Para Galeno, como antes para Platón y Aristóteles, la forma de vida, que incluye la nutrición, incide en la salud y en la enfermedad del alma. En la tradición que le antecede ya se aceptaba la dimensión moral de la dietética, pero nuestra tesis es que en las investigaciones de Galeno sobre la fisiología de las facultades del cuerpo, encontramos el fundamento empírico para la afirmación según la cual el cuidado del cuerpo influye en la salud del alma. (shrink)

ABSTRACT This essay explores the ways in which theories and entities are culturally and intellectually embedded in historical and disciplinary contexts by looking at the development of a set of related theories of perception that emerged in response to contemporary Sceptical criticisms of the very possibility of doing empirical science. At the same time, it attempts to bring into focus a puzzle about precisely how (and how deeply) seeing itself is conditioned.

Through the historical portrait of Galen, I argue that even an enchanted nature does not prevent the performance of violence against nature. Galen, the great physician-philosopher of antiquity, is best known for his systematization and innovation of the Hippocratic medical tradition, whose thought was the reigning medical orthodoxy from the medieval period into the Renaissance. His works on anatomy were the standard that Vesalius’ works on anatomy overturned. What is less known about Galen’s study of anatomy, however, is its philosophical (...) and theological edge. In this paper, I show that it is precisely because nature is enchanted that Galen undertakes the grisly practices of anatomical dissection and vivisection, which entail violence against nature. First, I illustrate the violent character of Galen’s anatomical experiments. Second, I elucidate Galen’s anatomical methodology as a form of philosophizing and theologizing with a scalpel. Third, I explicate the importance of the demonstration of divine teleology that anatomical dissection reveals. Fourth, I sketch how anatomical dissection as a way of knowing nature and God becomes a kind of anatomical, liturgical theology. I conclude that, at least for Galen, an enchanted nature is not in itself exempt from violence. (shrink)

Journal Name: Apeiron Issue: Ahead of print.

_ Source: _Volume 62, Issue 1, pp 69 - 89 Galen’s physiology—his theory of elements, mixtures and the emergence of natural capacities—compels him to conceive of each part of the soul as a peculiar mixture of elementary qualities in the material substance of the organ in which it is located. The reason why Galen, nevertheless, refrains from making a dogmatic assertion about the substance of the soul, or of human nature in general, is the acknowledged failure to account for two (...) goal-directed activities—the formation of bodily organs and human intelligence—in terms of elementary qualities and their mixtures. (shrink)

Entender la dimensión moral de la dietética en la antigüedad exige investigar los avances de las investigaciones médicas gracias a las cuales se establecen las bases de la psicología moral. Por esta razón en este artículo se exploran algunos pasajes de Sobre las opiniones de Hipócrates y Platón, escrito por el médico alejandrino Galeno de Pérgamo (I-II d. C). Según los hallazgos de su investigación sobre la naturaleza del alma, aun cuando ésta tuviera una sustancia propia, ajena a las mezclas (...) humorales del cuerpo, es preciso admitir que sus facultades, incluida la racional, pueden ser ayudadas o impedidas por el equilibrio o por el desequilibrio de los humores del cuerpo. Esta es la tesis que defenderá en su escrito de madurez titulado Las facultades del alma siguen los temperamentos del cuerpo. Para Galeno, como antes para Platón y Aristóteles, la forma de vida, que incluye la nutrición, incide en la salud y en la enfermedad del alma. En la tradición que le antecede ya se aceptaba la dimensión moral de la dietética, pero nuestra tesis es que en las investigaciones de Galeno sobre la fisiología de las facultades del cuerpo, encontramos el fundamento empírico para la afirmación según la cual el cuidado del cuerpo influye en la salud del alma. (shrink)

Galen is well known as a critic of Stoicism, mainly for his massive attack on Stoic (or at least, Chrysippean) psychology in "On the Doctrines of Hippocrates and Plato" (PHP) 2-5. Galen attacks both Chrysippus' location of the ruling part of the psyche in the heart and his unified or monistic picture of human psychology. However, if we consider Galen's thought more broadly, this has a good deal in common with Stoicism, including a (largely) physicalist conception of psychology and a (...) strongly teleological view of natural entities, shared features which are acknowledged in several treatises outside "PHP." Why, then, is Galen such a remorseless and negative critic of Stoicism in "PHP"? Various factors are relevant, including the shaping influence on Galen of the Platonic-Aristotelian (part-based) psychological framework. But, it is suggested here, an important underlying factor is the contrast between two ways of thinking about the part-whole relationship, a 'composition' and a 'structure' approach or an atomistic and holistic approach. This contrast is most evident and explicit in one section of "PHP" 5, where Galen, criticising Chrysippus' holistic psychology, denies that the Stoic thinker is entitled to use the concept of part at all. But the contrast is also seen as pervading Galen's response to Stoic thought more generally, in "PHP" and elsewhere, in ways that inform his explicit disagreements with Stoic theory. Stoicism is presented here as having a consistently 'structure' (or holistic) approach. Galen's approach is seen as more mixed, sometimes sharing, or aspiring towards, a holistic picture, and yet sometimes (especially in "PHP" 5), adopting a strongly 'composition' or atomistic standpoint. This (partial) contrast in conceptual frameworks is presented as offering a new perspective on Galen's critique of Stoic psychology in "PHP" and on his relationship to Stoic thought more generally. (shrink)

This essay examines several important issues regarding Galen's depiction of the physiology of the arteries. In the process some of Galen's supporting doctrines on the blood and pulse will also be discussed in the context of a coherent scientific explanation. It will be the contention of this essay that though Galen may often have a polemical goal in mind, he correctly identifies the important and complex role of the arteries in human biological systems.