With the model of sense perception of sense perception, which I shall call the "Reid-Darwin-Pragmatic model," we assume as a starting point the existence of the individual in a natural, social world. Instead of saying with Descartes that there is a chasm between the perceiver (the subject) and the object, physical world which must be bridged if we're to avoid the skeptical trap.
Recently the question of what we mean by "truth" came up in a discussion with one of my internet correspondents, Spanos. The issue related to a previous claim that a full understanding of what we mean by truth requires reference to an ideal observer, i.e. one who sees and knows everything.