Online research in philosophy

Recent philosophy of psychology has seen the rise of so-called "dual-component" and "two-dimensional" theories of mental content as what I call a "Middle Way" between internalism (the view that contents of states like belief are "narrow") and externalism (the view that by and large, such contents are "wide"). On these Middle Way views, mental states are supposed to have two kinds of content: the "folk-psychological" kind, which we ordinarily talk about and which is wide; and some non-folk-psychological kind which is narrow. Jerry Fodor is responsible for one of the most influential arguments that we need to believe in some such non-folk-psychological kind of content. In this paper I argue that the ideas behind Fodor's premises are mutually inconsistent - so it would be irrational to believe in a Middle Way theory of mental content no matter how many of Fodor's premises you find plausible. Common opinion notwithstanding, we have to choose between internalism and externalism, full-stop.

In recent times, Evans’ idea that mental states could have non-conceptual contents has been attacked. McDowell (Mind and World, 1994) and Brewer (Perception and reason, 1999) have both argued that that notion does not have any epistemological role because notions such as justification or evidential support, that might relate mental contents to each other, must be framed in conceptual terms. On his side, Brewer has argued that instead of non-conceptual content we should consider demonstrative concepts that have the same fine grainess of non-conceptual contents while having conceptual structure. In what follows I will argue that, first, that the notion of demonstrative concept is not viable and, second, that there is an epistemological role for non-conceptual content.

A content of a subject's mental state is narrow when it is determined by the subject's intrinsic properties: that is, when any possible intrinsic duplicate of the subject has a corresponding mental state with the same content. A content of a subject's mental state is..

Narrow mental content is a kind of mental content that does not depend on an individual's environment. Narrow content contrasts with “broad” or “wide” content, which depends on features of the individual's environment as well as on features of the individual. It is controversial whether there is any such thing as narrow content. Assuming that there is, it is also controversial what sort of content it is, what its relation to ordinary or “broad” content is, and how it is determined by the individual's intrinsic properties.

What is it that one thinks or believes when one thinks or believes something? A mental formula? A sentence in some natural language? Its truth conditions? Or perhaps an abstract proposition? The current story of content is fairly ecumenical. It says that a number of aspects, some mental, other semantic, go into our understanding of content. Yet the current story is incomplete. It leaves out a very important aspect of content, one which I call incremental information. It is information in a specific format, information as a limited or local increment, structured by a number of underlying parameters. It is in the form of such increments that information drives cognition and behavior. This is why, perhaps of all aspects of content, it is incremental information which matters most when we want to understand cognitive attitudes and performances. This in turn must have an impact on our philosophical notions of content, propositional attitudes, inference, justification and knowledge.

In everyday life, we typically explain what people do by attributing mental states such as beliefs and desires. Such mental states belong to a class of mental states that are _intentional_, mental states that have content. Hoping that Johnny will win, and believing that Johnny will win are of course rather different mental states that can lead to very different behaviour. But they are similar in that they both have the same content : what is being hoped for and believed is the very same thing. According to the thesis of externalism that has been defended most notably by Hilary Putnam and Tyler Burge, not all of the contents of our mental states are determined by our intrinsic properties. Instead, the contents of our beliefs and desires are often determined in part by our relations to the environment. They are, so to speak, "wide" contents that are "not in our heads." Although externalism is accepted by most philosophers, many have argued that mental states with wide contents must also have a kind of content wholly determined by the intrinsic properties of the individuals who are in those states. This kind of content is called "narrow content". The aim of this paper is to distinguish between three rather different motivations for postulating narrow content. I argue that, given a certain conception of narrow content that I shall explain below, none of these three motivations succeed in establishing the existence of narrow content.

The Representational Theory of the Mind (RTM) has been forcefully and subtly developed by Jerry A. Fodor. According to the RTM, psychological states that explain behavior involve tokenings of mental representations. Since the RTM is distinguished from other approaches by its appeal to the meaning or "content" of mental representations, a question immediately arises: by virtue of what does a mental representation express or represent an environmental property like coto or shoe? This question asks for a general account of the semantics of mental representation. Fodor places two conditions on the requisite theory: it must be physi calistic (that is, it must be couched in nonsemantic and nonintentional terms, free of expressions like "refers to" or "denotes" or "means that"), and it must be atomistic (that is, it must allow that the thinker can have a single intentional state without having any others). What is wanted, then, is a reductive theory that "naturalizes" content by specifying sufficient conditions, in physicalistic and atomistic terms, for a mental symbol to represent or express a certain property.