What are the conceptually necessary and sufficient conditions for a person, or organism, to perceive a given object? More precisely, what is the nature of our ordinary thought about perception that gives rise to our willingness or unwillingness to say that S perceives O? Some form of causal theory of perception is now, I think, widely accepted. Such a theory maintains that it is part of our concept of perception that S perceives O only if O causes a percept, or (...) perceptual state, of S. I accept this causal requirement, though with some qualification. The crucial problem for the theory of perception is what must be added to the causal requirement. Not all causes of a percept are said to be perceived. Smith looks at a tree illuminated by the sun, when the sun is not itself in view. His visual percept is caused by the tree, but not only the tree. The percept's causal ancestry includes the sun and the array of light two inches from Smith's eyes. Why do we say that he sees the tree, but not the sun or the array of light? What principles underlie this invidious choice among causes? Similarly, we think of a bat as perceiving objects in his path, but not as perceiving himself. Yet, since he emits the sonar signals these objects reflect, he is himself a cause of his percepts. Why don't we say he perceives himself? (shrink)

OPINION IS DIVIDED as to whether the "qualitative characters" or "qualia" of conscious sensory experiences such as color perceptions and pain sensations genuinely constitute a major obstacle to the success or tenability of contemporary physicalist theories of mind. Do the enormous complexities of human brain activity--conceived more or less as we now conceive it--alone suffice to account for our conscious sensory experiences, and thereby show how the experiences are nothing over and above the brain activities, or must there be some (...) further kind of thing, if we are to account for the existence of our kind of consciousness? This issue, representing perhaps the most profound division of opinion in contemporary philosophy of mind, cannot possibly reach a genuine resolution in the absence of a satisfactory answer to a question which has suffered astonishing neglect in the extensive debate on this issue: What exactly is the qualitative character of a conscious sensory experience? What exactly is it about color perception, for example, that makes it so distinctive in a "qualitative" respect, allegedly making trouble for contemporary theories of mind? (shrink)

This book argues that we are not equipped to understand the workings of conciousness, despite its objective naturalness.

Owen Flanagan argues that we are on the way to understanding consciousness and its place in the natural order.

First published in 2000. Routledge is an imprint of Taylor & Francis, an informa company.