C the JOURNAL of PHILOSOPHY C
c . c THE JOURNAL OF PHILOSOPHY volume cv, no. 2, february 2008 c . c THE SITUATION-DEPENDENCY OF PERCEPTION* ow can perception give us knowledge of the world? One of the challenges in answering this question is that we always H perceive objects from a particular location, under particular lighting conditions, and similar features of the environment that de- termine the way objects are presented. Despite this fact, we can per- ceive the shape and color of objects.1 We can perceive the shape of objects although only the facing surfaces are visible, and we can perceive two same-sized objects located at different distances to be the same size. Similarly, we can perceive the uniform color of a yellow wall although parts of it are illuminated more brightly than others, and we can recognize the sound of a cello regardless of whether it is played on a street or in a concert hall. More generally, subjects can perceive the properties objects have regardless of the situational features, al- though the way an object is presented always depends on the situa- tional features. When I speak of objects without further qualification, I mean mind- independent, external objects, such as cats and tables. Let us call the properties that an object has regardless of the situational features the intrinsic properties of the object. An intrinsic property of an object is a * I am indebted to Keith Allen, Robert Audi, Stephen Engstrom, Alan Ha´jek, Benj Hellie, Anjana Jacob, James John, Uriah Kriegel, William Lycan, Mohan Matthen, Anders Nes, Gurpreet Rattan, Sydney Shoemaker, Declan Smithies, Evan Thompson, Timothy Williamson, Wayne Wu, and the members of the Australian National University philosophy of mind reading group for comments on a draft of this paper.
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