Online research in philosophy

ONE way t0 defend narrow content is to produce a sentence 0f the form ‘S believes that P’, and show that this sentence is true 0f S if and 0nly if it is true 0f any duplicate from the skin in, any doppclgangcr, of S. N0toriously, this is hard to d0. Twin Earth examples are pervasivc.1 Another way to defend narrow content; is t0 show that Only 2. narrow notion can play thc causal explanatory r01c we require 0f contcnt in 2. properly scicntiicm psychology 0r cognitive science. Notoriously, this is hard t0 d0. The considerations—mcthod010gicaI solipsism, the principle 0f autonomy, 0r what:cvcr—invokcd to show that a broad notion 0f content cannot..

If psychology requires a taxonomy that categorizes mental states according to their causal powers, the common sense method of individuating mental states (a taxonomy by intentional content) is unacceptable because mental states can have different intentional content, but identical causal powers. This difference threatens both the vindication of belief/desire psychology and the viability of scientific theories whose posits include intentional states. To resolve this conflict, Fodor has proposed that for scientific purposes mental states should be classified by their narrow content. Such a classification is supposed to correspond to a classification by causal powers. Yet a state's narrow content is also supposed to determine its (broad) intentional content whenever that state is 'anchored' to a context. I examine the two most plausible accounts of narrow content implicit in Fodor's work, arguing that neither account can accomplish both goals.

In 'Fodor's Modal Argument' I claim that Fodor's latest defence of narrow content does not work. I claim that Fodor's modal argument is an unsuccessful resurrection of the Logical Connection Argument. Russow claims that my arguments fail because I confuse cause properties with causal powers, focus on events rather than properties, and overlook the fact that Fodor is trying only to explain narrow behavior. In this paper, I plead 'not guilty' to all of Fodor's charges. Narrow content still does not exist.

A major obstacle to formulating a broad-content intentional psychology is the occurrence of ''Frege cases'' - cases in which a person apparently believes or desires Fa but not Fb and acts accordingly, even though "a" and "b" have the same broad content. Frege cases seem to demand narrow-content distinctions to explain actions by the contents of beliefs and desires. Jerry Fodor ( The elm and the expert: Mentalese and its semantics , Cambridge, MA: MIT Press, 1994) argues that an explanatorily adequate broad-content psychology is nonetheless possible because Frege cases rarely occur in intentional-explanatory contexts, and they are not systematically linked to intentional laws in a way that demands intentional explanation. Thus, he claims, behaviors associated with Frege cases can be considered ceteris-paribus exceptions to broad-content intentional laws without significantly decreasing the explanatory power of intentional psychology. I argue that Frege cases are plentiful and systematically linked to intentional laws in a way that requires intentional explanation, specifically in the explanation of why certain actions are not performed. Consequently, Frege-case behaviors cannot be construed as ceteris-paribus exceptions to intentional laws without significantly eroding the explanatory power of intentional psychology and reducing the rationality of the agent. Fodor thus fails to save broad-content psychology from the prima facie objections against it based on Frege cases.

What we do, intentionally, depends upon the intentional contents of our thoughts. For about ten years Fodor has argued that intentional behavior causally depends upon the narrow intentional content of thoughts (not broad). His main reason is a causal powers argument—brains of individuals A and B may differ in broad content, but, if A and B are neurophysically identical, their thoughts cannot differ in causal power, despite differences in broad content. Recently Fodor (Fodor, 1991) presents a new 'modal' version of this causal powers argument. I argue that Fodor's argument (in old or new dress) is a non sequitur. It neither establishes the existence of narrow content nor the need for a content other than broad content to explain intentional behavior.

Fodor’s Informational Semantics states that the content of a representation depends on the counterfactual relation between the representation and the represented. However, his theory suffers from the psychological explanation problem and the indeterminacy problem raised by twin cases. In response to these problems, Fodor has introduced narrow content and a mixed theory of content that combines a historical account with the counterfactual account. In The Elm and the Expert, he drops both of them for the reason that twin cases are nomologically impossible. I argue that Fodor underestimates the persistence of the problems raised by twin cases. Consequently, I contend that Fodor has to keep both the narrow content and the historical account.