We are affected by the world: when I place my hand next to the fire, it becomes hot, and when I plunge it into the bucket of ice water, it becomes cold. What goes for physical changes also goes for at least some mental changes: when Felix the Cat leaps upon my lap, my lap not only becomes warm, but I also feel this warmth, and when he purrs, I hear his purr. It seems obvious, in other words, that perception (...) (at least, and at least under ordinary conditions) is a matter of being affected by the agency of perceptible objects. Call this doctrine affectionism. Durand of St.-Pourçain rejects affectionism. The paper has three parts. In the first part, I sketch, briefly, what motivates Durand to reject affectionism. In the second part, I will take up the affectionist doctrine as defended by Durand's older contemporary at Paris, Godfrey of Fontaines, who holds that the object of all our mental acts (not just perceptions, but also thoughts and desires) is the efficient cause of those acts, or, in other words, all mental acts (not just perception) come about owing to the affection of the relevant mental faculty by the agency of the object. As it turns out, Godfrey develops a celebrated argument against the thesis that the object is not the efficient cause but a mere sine qua non cause. Hence his position offers a challenge to Durand's position, a challenge, I argue in the third part, Durand meets. (shrink)

Durand of Saint-Pourçain's earliest treatment of cognitive habits is contained in his Sentences Commentary, Book 3, Distinction 23. In the first two questions, he discusses the ontological status of habits and their causal role, establishing his own unique view alongside the views of Godfrey of Fontaines and Hervaeus Natalis. What follows is the Latin text and an English translation of Durand's Sentences (A/B) III, d. 23, qq. 1-2.

The present dissertation concerns cognitive psychology—theories about the nature and mechanism of perception and thought—during the High Middle Ages (1250–1350). Many of the issues at the heart of philosophy of mind today—intentionality, mental representation, the active/passive nature of perception—were also the subject of intense investigation during this period. I provide an analysis of these debates with a special focus on Durand of St.-Pourçain, a contemporary of John Duns Scotus and William of Ockham. Durand was widely recognized as a leading philosopher (...) until the advent of the early modern period, yet his views have been largely neglected in the last century. The aim of my dissertation, then, is to provide a new understanding of Durand’s cognitive psychology and to establish a better picture of developments in cognitive psychology during the period. -/- Most philosophers in the High Middle Ages held, in one form or another, the thesis that most forms of cognition (thought, perception) involve the reception of the form of the object into the mind. Such forms in the mind explain what a given episode of cognition is about, its content. According to what has been called the conformality theory of content, the content of our mental states is fixed by this form in the mind. Durand rejects this thesis, and one of the primary theses that I pursue is that Durand replaces the conformality theory of content with a causal theory of content, according to which the content of our mental states is fixed by its cause. When I think about Felix and not Graycat, this is to be explained not by the fact that I have in my mind the form of Felix and not Graycat, but rather by the fact that Felix and not Graycat caused my thought. -/- This is both a controversial interpretation and, indeed, a controversial theory. It is a controversial interpretation because Durand seems to reject the thesis that objects are the causes of our mental states. In the first half of the present dissertation, I argue that Durand does not reject this thesis but he rejects another nearby thesis: that objects as causes give to us ‘forms’. On Durand’s view, an object causes a mental state even though it does not give to us a new ‘form’. In the second half of the dissertation I defend Durand’s causal theory of content against salient objections to it. (shrink)

According to Christian doctrine as formulated by the Council of Chalcedon (451), Christ is one person (one supposit, one hypostasis) existing in two natures (two essences), human and divine. The human and divine natures are not merged into a third nature, nor are they separated from one another in such a way that the divine nature goes with one person, namely, the Word of God, and the human nature with another person, namely, Jesus of Nazareth. The two natures belong to (...) just one person, and the one person has two distinct natures. Chalcedon‟s justly-famous formula brought the debate into sharper focus and ruled out certain options, but of course it did not bring the arguments to a complete end. More councils,more debates, and more questions were to follow, although the range of disagreement tended to narrow. In the medieval Latin West, Peter Lombard (†1160) identified in book III of the Sententiae three “opinions” on the topic, but by the middle of the thirteenth century, it was widely agreed that only one of them was orthodox teaching. This relative unity of thought provided the space within which more detailed issues could be debated, and one of the most interesting of these concerned existence (esse): how many existences are there in Christ? Since Christ is only one person, it might seem that he has only one existence. On the other hand, he has two natures, so perhaps instead he has more than one existence. In this one paper, my goal is rather modest. I discuss only a few of the relevant authors, and I focus primarily on which questions they were asking. I proceed as follows. I first look at Thomas Aquinas, whose remarks on these topics had such a large influence on the debate later in the thirteenth and fourteenth centuries. Crucial will be certain distinctions that Thomas makes, distinctions we can see as disambiguating the question we began with, namely, „How many existences are there in Christ?‟. After that I will look at how one of those distinctions makes its appearance in the writings of two post-Thomistic authors, Giles of Rome and Godfrey of Fontaines. (shrink)