Online research in philosophy

The simulation theory is an account of our everyday ability to attribute mental states and predict and explain human behavior. It has been developed both as an empirical hypothesis in cognitive science and as an account of mental concepts in the philosophy of mind.

In the course of explaining and anticipating thought and action, we characterize both ourselves and others in mental terms, e.g. as "believing the bus departs at ten" or "wanting to go swimming". The ability to characterize oneself and others in such terms is central to understanding persons. It underwrites the self-attribution of beliefs, desires, emotions and other conscious, occurrent "mental states" (MS) and subserves MS-attribution to others. How do ordinary people understand the contents of mental state concepts like belief or desire? Philosophers of mind and cognitive scientists have put forward answers based on theory-theory (TT), modularity theory (MT) and simulation theory (ST). Before examining how these approaches explain the contents of MS-concepts, two widespread assumptions concerning everyday psychological attributions should be discussed.

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.

I consider whether the self-ascription theory can succeed in providing a tenseless (B-theoretic) account of tensed belief and timely action. I evaluate an argument given by William Lane Craig for the conclusion that the self-ascription account of tensed belief entails a tensed theory (A-theory) of time. I claim that how one formulates the selfascription account of tensed belief depends upon whether one takes the subject of selfascription to be a momentary person-stage or an enduring person. I provide two different formulations of the self-ascription account of tensed belief, one that is compatible with a perdurantist account of persons and the other that is compatible with an endurantist account of persons. I argue that a self-ascription account of tensed beliefs for enduring subjects most plausibly involves the self-ascription of relations rather than properties. I argue that whether one takes the subject of self-ascription to be a momentary personstage or an enduring person, the self-ascription theory provides a plausible B-theoretic account of how tensed belief and timely action are possible.

Knowledge is standardly taken to be belief that is both true and justified (and perhaps meets other conditions as well). Timothy Williamson rejects the standard epistemology for its inability to solve the Gettier problem. The moral of this failure, he argues, is that knowledge does not factor into a combination that includes a mental state (belief) and an external condition (truth), but is itself a type of mental state. Knowledge is, according to his preferred account, the most general factive mental state. I argue, however, that Gettier cases pose a serious problem for Williamson's epistemology: in these cases, the subject may have a factive mental state that fails to be cognitive. Hence, knowledge cannot be the most general factive mental state.

Knowledge is standardly taken to be belief that is both true and justified (and perhaps meets other conditions as well). Timothy Williamson rejects the standard epistemology for its inability to solve the Gettier problem. The moral of this failure, he argues, is that knowledge does not factor into a combination that includes a mental state (belief) and an external condition (truth), but is itself a type of mental state. Knowledge is, according to his preferred account, the most general factive mental state. I argue, however, that Gettier cases pose a serious problem for Williamson’s epistemology: in these cases, thesubject may have a factive mental state that fails to be cognitive. Hence, knowledge cannot be the most general factive mental state.

The dominant account of human social understanding is that we possess a 'folk psychology', that we understand and can interact with other people because we appreciate their mental states. Recently, however, philosophers from the phenomenological tradition have called into question the scope of the folk psychological account and argued for the importance of 'online', non-mentalistic forms of social understanding. In this paper I critically evaluate the arguments of these phenomenological critics, arguing that folk psychology plays a larger role in human social understanding than the critics suggest. First, I use standard false-belief tasks to spell out the commitments of the folk psychological picture. Next, I explicate the critics' account in terms of Michael Wheeler's distinction between online and offline intelligence. I then demonstrate the challenge that false-belief understanding -- a paradigm case of mental state understanding -- poses to the critics' online, non- mentalistic account. Recent research on false-belief understanding illustrates that mental state understanding comes in both online and offline forms. This challenges the critics' claim that our online social understanding does not require folk psychology.

The debate between the theory-theory and simulation has largely ignored issues of cognitive architecture. In the philosophy of psychology, cognition as symbol manipulation is the orthodoxy. The challenge from connectionism, however, has attracted vigorous and renewed interest. In this paper I adopt connectionism as the antecedent of a conditional: If connectionism is the correct account of cognitive architecture, then the simulation theory should be preferred over the theory-theory. I use both developmental evidence and constraints on explanation in psychology to support this claim.

We contend that empathy is best viewed as a kind of analogical thinking of the sort described in the multiconstraint theory of analogy proposed by Keith Holyoak and Paul Thagard (1995). Our account of empathy reveals the Theory-theory/Simulation theory debate to be based on a false assumption and formulated in terms too simple to capture the nature of mental state ascription. Empathy is always simulation, but may simultaneously include theory-application. By properly specifying the analogical processes of empathy and their constraints, we are able to show how the amount of theory needed to empathize is determined.

This essay adjudicates between theoretical models of psychological concept acquisition. I provide new reasons to be skeptical about both simulationist and modularist models. I then defend the scientific-theory-theory account against familiar objections. I conclude by arguing that the scientific-theory-theory account must be supplemented by an account of hypothesis discovery.