Cynthia Macdonald

Externalism in the philosophy of mind has been thought by many to pose a serious threat to the claim that subjects are in general authoritative with regard to certain of their own intentional states.¹ In a series of papers, Tyler Burge (1985_a_, 1985_b_, 1988, 1996) has argued that the distinctive entitlement or right that subjects have to self- knowledge in certain cases is compatible with externalism, since that entitlement is environmentally neutral, neutral with respect to the issue of the individuation dependence of subjects' intentional states on factors beyond their bodies. His reason is that whereas externalism—the view that certain intentional states of persons are individuation-dependent on objects and/or phenomena external to their bodies—is a metaphysical thesis, authoritative self-knowledge is an epistemological matter. This being so, there is no reason to suppose that the two need conflict with one another

What is introspective knowledge of one's own intentional states like? This paper aims to make plausible the view that certain cases of self-knowledge, namely the cogito-type ones, are enough like perception to count as cases of quasi-observation. To this end it considers the highly influential arguments developed by Sydney Shoemaker in his recent Royce Lectures. These present the most formidable challenge to the view that certain cases of self-knowledge are quasi-observational and so deserve detailed examination. Shoemaker's arguments are directed against two models of ordinary perception, the "object perception model" and the "broad perceptual model". I argue that the core theses that Shoemaker associated with them are either dubious in their own right or applicable to certain cases of self-knowledge. Overall the aim is to show that there is such a variety of patterns in each case that simple analogies or disanalogies are unhelpful