Plotinus argues that materialism cannot explain reflexive cognition. He argues that mere bodies cannot engage in the self-reflexive activity of both cognizing some content and being cognitively aware of cognizing this content. Short of outright denying the cognitive unity underlying this phenomenon of self-awareness, materialism is in trouble. However, Plotinus bases his argument on the condition that material bodies are capable of a spatial unity at most, and while this condition has purchase on ancient materialists, it would be rejected today. (...) After considering objections based on our contemporary understanding of a material body, I amend Plotinus' argument to focus instead on the core materialist commitment to external efficient-causal relations. This amended argument regains its urgency for materialism, while retaining the spirit of Plotinus' view. (shrink)

RESUMO A percepção sensível é a faculdade cognitiva da alma, que recebe, por meio dos órgãos dos sentidos, um conjunto de características dos objetos, tais como altura, largura, cor, cheiro, som, e também aquilo que pode nos afetar, como, por exemplo, a dor proveniente de uma queimadura, ou o prazer causado por uma melodia. Compreender o processo perceptivo, em relação aos seus diferentes tipos de objetos - afecções, qualidades e impressões - é o escopo deste estudo. ABSTRACT Sensible perception is (...) the cognitive faculty of the soul that receives, through sensorial organs, a set of characteristics of the objects, such as height, width, color, odor, sound, and also that which can affect us as, for instance, the pain that arises from being burnt or the pleasure caused by a melody. Understanding the perceptive process in relation with its different kinds of objects - affections, qualities, and impressions - is the aim of this study. (shrink)

This study traces the notion of the internal senses in three ancient authors, namely Nemesius, Plotinus and Galen. It begins with Nemesius, and then by going backward ends with Galen. The textual evidence investigated in this study shows clearly that Galen, after acknowledging the Platonic tripartite soul, locates the various dunameis of the soul in the brain. The “localization” theory of Galen plays a crucial role in paving the way for the foundation of the internal senses, which both Plotinus and (...) Nemesius adapted. Just as with the external senses one can locate various sense-organs in different parts of the body, viz., touch, smell, sight etc., so too with the internal senses, thanks to Galen, one is able to locate them in various organs of the body. Thus philosophers are able to explain the role of all these different senses in their account of sense-perception. (shrink)

Alexander of Aphrodisias picks up Aristotle’s insufficient treatment of simultaneous perception and develops an adequate solution for the problem, thereby offering an account of the unity of perceptual consciousness—the single mental activity of a single subject with complex content. I show the adequacy of the solution by using as criteria the requirements that have been identified by Aristotle and approved (and explained) by Alexander. I analyze Alexander’s solution in two turns. First, with respect to heterogeneous perceptibles, Alexander adopts and reformulates (...) Aristotle’s metaphorical account invoking the analogy with a point. Second, with respect to homogeneous opposites, accordingly, perception is judgement, but it involves physical changes in diverse parts of the primary sense-organ. By this account Alexander resolves the issue of the unity of the subject on the level of the capacity of the soul, and coordinates the complexity of content with the complexity on the physical level. In addition to being adequate, the solution is faithful to Aristotle. I suggest that the interpretative decisions Alexander makes (the clarification of the analogy; the reference he finds to the analogy; the two components of the solution, judgement and parts of the organ) form an ingenious extension of Aristotle’s treatment. Interestingly, even though many elements in Alexander’s interpretation are taken up by modern commentators, no one has followed it in its entirety, nor even treated it in its own right. (shrink)

An aporia posed by Theophrastus prompts Priscian to describe the process by which perception formally assimilates to its object as a progressive perfection. I present an interpretation of Priscian’s account of perception’s progressive perfection. And I consider a dilemma for the general class of accounts to which Priscian’s belongs based on related problems raised by Plotinus and Aquinas.

Late Stoics and, in particular, Epictetus made ample use of the notion of attention, which they understood as the soul’s vigilant focus on sense impressions and on the Stoic principles. Attention, in their view, was meant to assist our self-examination and lead to ethical progress. It was thus regarded as a Stoic good and a constitutive part of eudaimonia. Early Stoics did not seem to have invoked such a notion, whereas the Neoplatonists appropriated it into their psychology by postulating the (...) soul’s attentive part, which they introduced to explain both perceptual and intellectual attention as well as self-awareness. (shrink)

At the core of Plotinus’ exploration of human selfhood, lies a reference to the myth of Dionysus-Zagreus and his mirror, one of the toys the Titans used to seduce the young Dionysus. In interpreting the myth within this context, the mirror has been invariably regarded by scholars as a symbol for matter, an external surface on which the soul is projected and becomes embodied as a human individual by dispersing in the material depths. This paper challenges this established view and (...) advances a new interpretation of Plotinus’ allusion to the myth and its philosophical significance. It argues that the mirror is not a symbol for matter, but rather a symbol for the soul itself, for its power to transform itself and retain its identity in the process of becoming a human individual. The function of the mirror is thus both deceptive and protective. While the desire that the soul, deceived by the mirror, feels for its own image guides it to leave behind its original condition and unity, it is this same desire that keeps the soul within itself: protected by the Dionysian mirror, even the most dispersed soul cannot desire anything other than what it takes to be itself, hence rather than disappearing in the radical alterity of matter, soul reaffirms its identity as an individual human self. (shrink)

The article treats the role of attention in Augustine’s analysis of sense perception, the notion of time, and the Trinitarian structure of the human mind. The term intentio covers a broad range of meanings in Augustine’s usage. Its most fundamental meaning is the life-giving presence of the soul in the body, intensified in attention’s being concentrated on a particular thing or experience; Augustine also uses the term attentio in this latter sense. According to his analysis of time, by way of (...) attention, the soul fixes the present in which the future passes into the past. Due to the intention of the soul, the form abstracted from an external object is both imprinted into the sense organ and retained in the memory in order to be, by intention again, recalled before the sight of mind. As “the intention of the will” or just “the will”, attention connects intellectual understanding with memory. In Augustine’s eyes, attention has a different quality depending on the object it is oriented to, and a different intensity, ranging from inattentive distraction to concentrated effort. (shrink)

It is well known that when it comes to perception in the De anima, Aristotle uses affection-related vocabulary with extreme caution. This has given rise to a debate between interpreters who hold that in Aristotle’s account, the act of sense-perception nevertheless involves the physiological alteration of the sense organ (Richard Sorabji), and those think, with Myles Burnyeat, that for Aristotle, perception does not involve any material process, so that an Aristotelian physics of sense-perception is a “physics of forms alone”. The (...) present article suggests that the dematerialisation of Aristotle’s theory of perception, which has a long story from Alexander of Aphrodisias to Brentano, may be in fact traced back to Theophrastus’ exegesis of Aristotle’s relevant passages in the De anima in his Physics, as we can reconstruct it on the basis of Priscian’s Metaphrasis in Theophrastum and Simplicius’ commentary of Aristotle’s De Anima. The reconstruction also provides a scholastic-theoretical frame to Theophrastus’ critical exposition of ancient theories about sense perception in his De sensibus, whether or not the discussion originally belonged to Theophrastus’ Physics. (shrink)

This paper studies Sentence 16 of Porphyry's Pathways to the Intelligible. It is argued that it should be understood against the background of Plotinus' discussions of the similes of the waxen block and the aviary from Plato's Theaetetus. The first part of the paper concentrates on Plotinus' reception of these similes. In the second part of the paper Plotinus' discussions of the two similes are used to shed light on Sentence 16, in particular on the term προχείρισις. Furthermore it is (...) argued that Porphyry does not reject Plotinus' claim that, pace Aristotle, intellection does not require imaging. (shrink)

This paper argues that the duality of phantasia consists not in its being divided between two faculties, but in its being the meeting point of two representations. First it is argued that Plotinus’ theory, according to which the representation is a judgement, rests on his reading of Theaetetus 184c–187a and its criticism in De Anima III, 2–3. Second, it is argued that the ‘image’ in which the Plotinian representation consists follows the perceptual judgement instead of preceding it. Third, it is (...) argued that there is neither a sub-sensitive faculty of phantasia nor a sub-sensitive representation. Then, the exteriority of the objects of representation with respect to the soul is discussed. Finally, an interpretation is proposed concerning the necessity for Plotinus to posit two representations of the same object. (shrink)

I examine the relation between sensation and discursive thought in Plato, Plotinus, and Proclus. In Theaetetus, a soul whose highest faculty was sensation would have no unified experience of the sensible world, lacking universal ideas to give order to the sensible flux. It is implied that such universals are grasped by the soul’s thinking. In Plotinus the soul is not passive when it senses the world, but as the logos of all things it thinks the world through its own forms.Proclus (...) argues against the derivation of universal logoi from the senses, which alone can’t make the sensible world comprehensible. At most they give a record of the original sense-impression in its particularity. The soul’s own projected logoi give the sensible world stability. For Proclus, bare sensation does not depend on thought, but a unified experience of the sense-world depends on its paradigmatic logoi in our souls. (shrink)

Plotinus maintains that our intellect is always thinking. This is due to his view that our intellect remains in the intelligible world and shares a natural kinship with the hypostasis Intellect, whose being and activity consists in eternal contemplation of the Forms. Moreover, Plotinus maintains that although our intellect is always thinking we do not always apprehend our thoughts. This is due to his view that “we“ descend into the sensible world while our intellect remains in the intelligible world. Furthermore, (...) Plotinus maintains that it is only when logoi unfold the content of our thoughts into the imagination that we apprehend them. This is due to a complex account between, on the one hand, the relationship between intellect and discursive reasoning, and on the other hand, the relationship between discursive reasoning and language. Plotinus tells this story with remarkable brevity in Ennead 4.3.30. In this paper I explain the role the imagination plays in the apprehension of thoughts through a close analysis of this treatise in connection with Ennead 1.4.10. (shrink)