The basic problem of perceptual change is how to account for both variation and constancy in perceiving the world. Is order learned? How deep does plasticity go in that respect? I argue that different kinds of perceptual plasticity have been confused in recent debates, notably between J. Fodor and P. M. Churchland. By focusing on changes in the use of concepts, the issues in the Fodor-Churchland debate can be resolved. Beyond that debate, I propose a generalized encoding approach to perception (...) as a way of accounting for a significant form of perceptual change. (shrink)

The present paper introduces a simple framework for modeling the relationship between environmental states, perceptual states, and action. The framework represents situations where an agent’s perceptual state forms the basis for choosing an action, and what action the agent performs determines the agent’s payoff, as a function of the environmental conditions in which the action is performed. The framework is used as the basis for a simulation study of the sorts of correspondence between perceptual and environmental states that are important (...) for successful navigation of the world. Some of the results are surprising and conflict with long held views about the kind of perception-to-environment correspondence that is important for knowledge of the world. The results also raise doubts concerning the view that our perceptual states provide a basis for knowledge of the real structure of the external world. (shrink)

Perception purports to help you gain knowledge of the world even if the world is not the way you expected it to be. Perception also purports to be an independent tribunal against which you can test your beliefs. It is natural to think that in order to serve these and other central functions, perceptual representations must not causally depend on your prior beliefs and expectations. In this paper, I clarify and then argue against the natural thought above. All perceptual systems (...) must solve an under-determination problem: the sensory data they receive could be caused by indefinitely many arrangements of distal objects and properties. Using a Bayesian approach to perceptual processing, I argue that in order to solve the under-determination problem, perceptual capacities must rely on prior beliefs or expectations of some kind. I then argue that perceptual states or processes can help ground knowledge of the world whether the ‘beliefs’ necessary for perceptual processing are encoded as sub-personal states within a perceptual system or cognitive states, such as person-level beliefs. My argument has two main parts. First, I give a preliminary argument that cognitive influence on perception can be appropriate, and I respond to three lines of objection. Second, I argue that cognitively influenced perceptual states can be instances of seeing that p, which makes the relevant states well suited to help ground knowledge that p. I conclude that a cognitively penetrated perceptual state or process can help ground knowledge under some circumstances. (shrink)

A commentary on a target article by Alison Gopnik (1993) How we know our minds: the illusion of first-person knowledge of intentionality. Focusing on evidence of how children acquire a theory of mind, this commentary argues that there are internal inconsistencies in theories that both argue for the functional role of conscious experiences and the irreducibility of those experiences to third-person viewable information processing.

Some theorists hold that the human perceptual system has a component that receives input only from units lower in the perceptual hierarchy. This thesis, that we shall here refer to as the encapsulation thesis, has been at the center of a continuing debate for the past few decades. Those who deny the encapsulation thesis often rely on the large body of psychological findings that allegedly suggest that perception is influenced by factors such as the beliefs, desires, goals, and the expectations (...) of the perceiver. Proponents of the encapsulation thesis, however, often argue that, when correctly interpreted, these psychological findings are compatible with the thesis. In our view, the debate over the significance and the correct interpretation of these psychological findings has reached an impasse. We hold that this impasse is due to the methodological limitations over psychophysical experiments, and it is very unlikely that such experiments, on their own, could yield results that would settle the debate. After defending this claim, we argue that integrating data from cognitive neuroscience resolves the debate in favor of those who deny the encapsulation thesis. (shrink)

Kuhn argues that a paradigm generally emerges from among such competing schools as the result of a particularly attractive or powerful accomplishment that places one school in a better position than the others. With the establishment and common acceptance of one particular theoretical structure, researchers can direct their observations and experiments in accordance with the ontological and methodological landscape provided by the agreed upon paradigm. Under such guidance, scientists are in a position to judge the value of various observations, and (...) delineate between important lines of investigation and those without promise. Thus normal science, in contrast to its "immature" precursor, is characterized as purposeful, directed, and capable of advancement just in light of the fact that a paradigm exists as a qualifying standard. (shrink)

The Thesis of Theory-Laden [TTL] holds that is not possible a neutral observation. From this thesis, some philosophers have inferred that the facts, i.e., the subject’s independent reality, do not exist or that they are social constructions only. The aim of this paper is assess if TTL necessarily implies a constructivist point of view or if, conversely, we can still speak about the reality. In order to do this, we will clarify these terms: "the theory-ladenness of observation" and "constructivism". Then, (...) we will argue that although TTL is possible, we are not committed to constructivism, and on the contrary, TTL can be an interesting frame to the realistic thesis. Finally, we will point out the impact this had has when evaluating many epistemological proposals. La tesis de la carga teórica de la observación [CTO] sostiene que no es posible una observación neutral. A partir de esta tesis, algunos filósofos han derivado que los hechos, o mejor, la realidad independiente del sujeto, no existen o que son solo construcciones sociales. El objetivo de este artículo es evaluar si CTO implica necesariamente una visión constructivista o si, por el contrario, permite seguir hablando de realidad. Para ello, se aclararán los conceptos de "carga teórica de la observación" y de "constructivismo". Posteriormente, se defenderá que pese a la plausibilidad de CTO, no estamos comprometidos a adoptar el constructivismo, antes bien, CTO puede ser un interesante marco para las tesis realistas. Finalmente, se señalarán algunas repercusiones que esto tiene a la hora de evaluar propuestas epistemológicas. (shrink)

I argue that there exists a natural kind social bias that subsumes seemingly heterogenous cases of implicit bias and other forms of social cognition. I explore the implications of this explicated notion of bias for the organization of the mind, theories of consciousness, and the system-dependence of biases.

This is a reminiscence and short biographical sketch of the late philosopher and cognitive scientist Jerry Fodor. It includes a summary of his main proposals about the mind: his “Language of Thought” hypothesis; his rejection of analyticity and conceptual role semantics; his “mad dog nativism”; his proposal of mental modules and—by contrast—his skepticism about a computational theory of central cognition; his anti‐reductionist, but still physicalist, views about psychology; and, lastly, his attacks on selectionism. I conclude with some discussion of his (...) idiosyncratic style and of his aesthetic and other interests. An appendix provides some memorable quotes. (shrink)

This thesis evaluates a variety of important modern approaches to the study of the mind/brain in the light of recent developments in the debate about how evidence should be used to support a theory and its constituent hypotheses. Although all these approaches are ostensibly based upon the principles of scientific realism, this evaluation will demonstrate that all of them fall well short of these requirements. Consequently, the more modern, co-evolutionary theories of the mind/brain do not constitute the significant advance upon (...) more traditional theories that their authors take them to be. There are two fundamental elements within my discussion of the relationship between evidence and the constituent hypotheses of a theory. Firstly, I shall demonstrate that the traditional veil-of-perception issue has a wider relevance than that which has historically been attributed to it, since it is the paradigm case of an attempt to construct a two level theory on the basis of evidence tha~ does not adequately support either hypothesis. This interpretation of the issue can be represented by constructing a semantically inconsistent tetrad. It is shown that similar tetrads can be constructed for each of the theories of the mind/brain discussed in this thesis. Secondly, I shall argue that the theories discussed all employ a variety of the bootstrap strategy. This strategy is a relatively recent development in the philosophy of science, which suggests a way in which the same evidence can be used to generate both a general and a specific hypothesis within a theory without violating the constraints of scientific realism. However, I contend that recent use of this strategy in the investigation of mind is largely unsatisfactory as a result of a neglect of structural as well as more informal influences upon the kinds of evidence employed to support the hypotheses contained in the theories. The thesis is divided into three major sections. The first (Section A) discusses the influence of the motivations of the individual theorists upon their arguments and provides a critical discussion of the issues of the veil-of-perception and bootstrapping. The second section (Section B) comprises a detailed examination of a range of modern theories of the mind/brain and critically analyses their success. The final section (Section C) draws together general conclusions and methodological consequences of the detailed analysis of the nature of realism and evidence in the philosophy of mind. (shrink)

The ordinary understanding and ascription of mental states is a multiply complex subject. Widely discussed approaches to the subject, such as functionalism and the theory-theory (TT), have many variations and interpretations. No surprise, then, that there are misunderstandings and disagreements, which place many items on the agenda. Unfortunately, the multiplicity of issues raised by the commentators and the limitations of space make it impossible to give a full reply to everyone. My response is divided into five topics: (1) Which version(s) (...) of functionalism are candidates for an account of folk psychology, and is any such version satisfactory? (2) Where does TT stand in light of the two target articles and commentaries? (3) Does a phenomenological story provide a promising account of mental states, and is there special first-person authority about them? (4) What are suitable methodological assumptions for our subject matter? (5) How well does the simulation theory fare as an account of third-person mentalistic ascription? (shrink)

The question of how we actually arrive at our knowledge of others’ mental lives is lively debated, and some philosophers defend the idea that mentality is sometimes accessible to perception. In this paper, a distinction is introduced between “mind awareness” and “mental state awareness,” and it is argued that the former at least sometimes belongs to perceptual, rather than cognitive, processing.

In this paper, I compare theory-laden perceptions with imputed data sets. The similarities between the two allow me to show how the phenomenon of theory-ladenness can manifest itself in statistical analyses. More importantly, elucidating the differences between them will allow me to broaden the focus of the existing literature on theory-ladenness and to introduce some much-needed nuances.