Online research in philosophy

Philosophers have worried that research on animal mind-reading faces a “logical problem”: the difficulty of experimentally determining whether animals represent mental states (e.g. seeing) or merely the observable evidence for those states (e.g. line-of-gaze). The most impressive attempt to confront this problem has been mounted recently by Robert Lurz (2009, 2011). However, Lurz’ approach faces its own logical problem, revealing this challenge to be a special case of the more general problem of distal content. Moreover, participants in this debate do (...) not appear to agree on criteria for representation. As such, future debate on this question should either abandon the representational idiom or confront differences in underlying semantics. (shrink)

Do accounts of scientific theory formation and revision have implications for theories of everyday cognition? We maintain that failing to distinguish between importantly different types of theories of scientific inferencehas led to fundamental misunderstandings of the relationship between science andeveryday cognition. In this paper, we focus on one influential manifestation of this phenomenon which is found in Fodor’s well-known critique of theories of cognitive architecture. We argue that in developing his critique, Fodor confoundsa variety of distinct claims about the holistic (...) nature of scientific inference. Having done so, we outline more promising relations that hold between theories of scientific inference and ordinary cognition. (shrink)

In this essay, I argue in favor of evidential constraints on singular thoughts and thoughts with singular purport. In typical cases of singular thought, I claim, a thinker stands in an evidential relation to the object of thought suitable for providing knowledge of the object’s existence. Furthermore, a thinker may generate representations that purport to refer to particular objects in response to appropriate, though defeasible, evidence of the existence of such an object. I motivate these constraints by considering a number (...) of examples introduced in a recent paper by Robin Jeshion in support of a view she calls ‘cognitivism’. Although I agree with Jeshion that acquaintance is not required for all cases of singular thought, I argue that her account doesn’t go far enough in rejecting semantic instrumentalism, the view that we can generate singular thoughts arbitrarily, by manipulating the mechanisms of direct reference. (shrink)

This paper concerns the central method of generating evidence in support of contextualist theories, what we call context shifting experiments. We begin by explaining the standard design of context shifting experiments, which are used in both quantitative surveys and more traditional thought experiments to show how context affects the content of natural language expressions. We discuss some recent experimental studies that have tried and failed to find evidence that confirms contextualist predictions about the results of context shifting experiments, and consider (...) the criticisms of those studies made by DeRose (forthcoming). We show that DeRose's criticisms are incomplete, and we argue that the design of context shifting experiments he proposes is itself subject to some of the same problems as the studies he criticizes. We propose a refined approach to the design of context shifting experiments that addresses these problems and which allows us to to investigate the effect of context on both positive and negative sentences. This aspect of our design allows us to control for several forms of bias, including a particular form of "truth bias" that favors positive over negative sentences. We then deploy our improved design in an experiment that tests a large number of scenarios involving different types of expressions of interest to contextualists, including "know" and color adjectives like "green". Our experiment (i) reveals an effect of changing contexts on the evaluation of uses of the sentences that we examined, thereby overturning the absence of results reported in previous experimental studies (so-called null results) and (ii) reveals previously unnoticed distinctions between the strength of the contextual effects we observed for scenarios involving knowledge ascriptions and for scenarios concerning color and other miscellaneous scenarios. (shrink)

Intuitions about intentional action have turned out to be sensitive to normative factors: most people say that an indifferent agent brings about an effect of her action intentionally when it is harmful, but unintentionally when it is beneficial. Joshua Knobe explains this asymmetry, which is known as ‘the Knobe effect’, in terms of the moral valence of the effect, arguing that this explanation generalizes to other asymmetries concerning notions as diverse as deciding and being free. I present an alternative explanation (...) of the Knobe effect in terms of normative reasons. This explanation generalizes to other folk psychological notions such as deciding, but not to such notions as being free. I go on to argue against Knobe that offering a unified explanation of all the asymmetries he discusses is in fact undesirable. (shrink)

This paper provides a theory of the nature of symbols in the language of thought (LOT). My discussion consists in three parts. In part one, I provide three arguments for the individuation of primitive symbols in terms of total computational role. The first of these arguments claims that Classicism requires that primitive symbols be typed in this manner; no other theory of typing will suffice. The second argument contends that without this manner of symbol individuation, there will be computational processes (...) that fail to supervene on syntax, together with the rules of composition and the computational algorithms. The third argument says that cognitive science needs a natural kind that is typed by total computational role. Otherwise, either cognitive science will be incomplete, or its laws will have counterexamples. Then, part two defends this view from a criticism, offered by both Jerry Fodor and Jesse Prinz, who respond to my view with the charge that because the types themselves are individuated. (shrink)

Milner and Goodale’s influential account of the primate cortical visual streams involves a division of consciousness between them, for it is the ventral stream that has the responsibility for visual consciousness. Hence, the dorsal visual stream is a “zombie” stream. In this paper, I argue that certain information carried by the dorsal stream likely plays a central role in the egocentric spatial content of experience, especially the experience of visual spatial constancy. Thus, the dorsal stream contributes to a pervasive feature (...) of consciousness. (shrink)