"Marmodoro's monograph engages with Aristotle's views on a philosophically challenging question regarding perception, which has been central in the history of philosophy and is very much the focus of current debates in a number of philosophical and psychological disciplines: How do we become perceptually aware of objects in the world? Despite the significance of the question, the ways in which ancient philosophers have addressed it have only just begun to be be explored. There is a great wealth of insight on this question to be found in Aristotle, regarding our ability to perceive items in our environment, which he develops through his very demanding metaphysics, and Marmodo explores these insights in depth here. Aristotle's attempts at accounting for our awareness of complex perceptual content were highly original, drawing on and building on the metaphysics he has developed elsewhere in his works, but have not been adequately explored to date"--

In his work On Sense Perception, Aristotle discusses the material conditions of perception, starting with the sense organs and moving to the material basis of colour, flavour and odour. His Pythagorean account of hues as a ratio of dark to light was enthusiastically endorsed by Goethe against Newton as being true to the painter's experience. Aristotle finishes with three problems about continuity. First, in what sense are indefinitely small colour patches or colour variations perceptible? Secondly, which perceptible leap discontinuously like light to fill a whole space, which have to reach one point before another; and do observers of the latter perceive the same thing if they are at different distances? Thirdly, how does the central sense permit genuinely simultaneous, rather than staggered, perception of different objects? Alexander's highly explanatory commentary is most expansive on these problems of continuity. His battery of objections to vision involving travel, which would lead to collisions and interference by winds, inspired a tradition of grading the five senses in respect of degrees of immateriality and of intentionality. He also introduces us to paradoxes of Diodorus Cronus about the relations of the smallest perceptible to the largest perceptible size.

Gregoric investigates the Aristolian concept of the common sense, which was introduced to explain complex perceptual operations that can't be explained in terms of the five senses taken individually. Such operations include perceiving that the same object is white and sweet, or knowing that one's senses are inactive.

"In his work On Sense Perception, Aristotle discusses the material conditions of perception, starting with the sense organs and moving to the material basis of colour, flavour and odour. His Pythagorean account of hues as a ratio of dark to light was enthusiastically endorsed by Goethe against Newton as being true to the painter's experience. Aristotle finishes with three problems about continuity. First, in what sense are indefinitely small colour patches or colour variations perceptible? Secondly, which perceptible leap discontinuously like light to fill a whole space, which have to reach one point before another; and do observers of the latter perceive the same thing if they are at different distances? Thirdly, how does the central sense permit genuinely simultaneous, rather than staggered, perception of different objects? Alexander's highly explanatory commentary is most expansive on these problems of continuity. His battery of objections to vision involving travel, which would lead to collisions and interference by winds, inspired a tradition of grading the five senses in respect of degrees of immateriality and of intentionality. He also introduces us to paradoxes of Diodorus Cronus about the relations of the smallest perceptible to the largest perceptible size."--Bloomsbury Publishing.

This book offers an important study of Aristotle's theory of the sense-organs. It aims to answer two questions central to Aristotle's psychology and biology: why does Aristotle think we have sense-organs, and why does he describe the sense-organs in the way he does? The author looks at all the Aristotelian evidence for the five senses and shows how pervasively Aristotle's accounts of the sense-organs are motivated by his interest in form and function. The book also engages with the celebrated problem of whether perception for Aristotle requires material changes in the perceiver. It argues that, surprisingly to the modern philosopher, nothing in Aristotle's description of the sense-organs requires us to believe in such changes.

Mark Eli Kalderon presents an original study in the philosophy of perception written in the medium of historiography. He considers the phenomenology and metaphysics of sensory presentation through the examination of an ancient aporia. Specifically, he argues that a puzzle about perception at a distance is behind Empedocles' theory of vision. Empedocles conceives of perception as a mode of material assimilation, but this raises a puzzle about color vision, since color vision seems to present colors that inhere in distant objects. But if the colors inhere in distant objects how can they be taken in by the organ of sight and so be palpable to sense? Aristotle purports to resolve this puzzle in his definition of perception as the assimilation of sensible form without the matter of the perceived particular. Aristotle explicitly criticizes Empedocles, though he is keen to retain the idea that perception is a mode of assimilation, if not a material mode. Aristotle's notorious definition has long puzzled commentators. Kalderon shows how, read in light of Empedoclean puzzlement about the sensory presentation of remote objects, Aristotle's definition of perception can be better understood. Moreover, when so read, the resulting conception of perception is both attractive and defensible.

Anthony J. Lisska presents a new analysis of Thomas Aquinas's theory of perception. While much work has been undertaken on Aquinas's texts, little has been devoted principally to his theory of perception and less still on a discussion of inner sense. The thesis of intentionality serves as the philosophical backdrop of this analysis while incorporating insights from Brentano and from recent scholarship. The principal thrust is on the importance of inner sense, a much-overlooked area of Aquinas's philosophy of mind, with special reference to the vis cogitativa. Approaching the texts of Aquinas from contemporary analytic philosophy, Lisska suggests a modest 'innate' or 'structured' interpretation for the role of this inner sense faculty. Dorothea Frede suggests that this faculty is an 'embarrassment' for Aquinas; to the contrary, the analysis offered in this book argues that were it not for the vis cogitativa, Aquinas's philosophy of mind would be an embarrassment. By means of this faculty of inner sense, Aquinas offers an account of a direct awareness of individuals of natural kinds—referred to by Aquinas as incidental objects of sense—which comprise the principal ontological categories in Aquinas's metaphysics. By using this awareness of individuals of a natural kind, Aquinas can make better sense out of the process of abstraction using the active intellect (intellectus agens). Were it not for the vis cogitativa, Aquinas would be unable to account for an awareness of the principal ontological category in his metaphysics.