The notion of levels has been widely used in discussions of cognitive science, especially in discussions of the relation of connectionism to symbolic modeling of cognition. I argue that many of the notions of levels employed are problematic for this purpose, and develop an alternative notion grounded in the framework of mechanistic explanation. By considering the source of the analogies underlying both symbolic modeling and connectionist modeling, I argue that neither is likely to provide an adequate analysis of processes at (...) the level at which cognitive theories attempt to function: One is drawn from too low a level, the other from too high a level. If there is a distinctly cognitive level, then we still need to determine what are the basic organizational principles at that level. (shrink)

This paper argues that, while there is a difference between personal and sub-personal explanation, claims of autonomy should be treated with scepticism. It distinguishes between horizontal and vertical explanatory relations that might hold between facts at the personal and farts at the sub-personal level. Noting that many philosophers are prepared to accept vertical explanatory relations between the two levels, I argue for the stronger claim that, in the case of at least three central personal level phenomena, the demands of explanatory (...) adequacy require postulating horizontal explanatory relations. (shrink)

An asymmetry between the demands at the computational and algorithmic levels of description furnishes the illusion that the abstract profile at the computational level can be multiply realized, and that something is actually being shared at the algorithmic one. A disembodied rendering of the situation lays the stress upon the different ways in which an algorithm can be implemented. However, from an embodied approach, things look rather different. The relevant pairing, I shall argue, is not between implementation and algorithm, but (...) rather between algorithm and computation. The autonomy of psychology is a result of the failure to appreciate this point. (shrink)

Cognitive science is the interdisciplinary study of minds and intelligent behavior in human beings and animals. The challenge of integrating a study of the mind with a scientific world view has only recently attracted sustained effort. In this course, we will examine the various scientific methodologies that have been brought to bear to uncover the nature of the mind. We will critically assess the data and theoretical results that define contemporary cognitive science. Beyond the results of experiments and the theories (...) that are based on them, cognitive science proposes that there is an underlying framework that unifies the diverse methodologies we appeal to. We seek to understand this foundation. (shrink)

Starting from Dennett's distinction between personal and sub-personal levels of description, I consider the relationships amongst three levels: the personal level, the level of information-processing mechanisms, and the level of neurobiology. I defend a conception of the relationship between the personal level and the sub-personal level of information-processing mechanisms as interaction without reduction . Even given a nonreductionist conception of persons, philosophical theorizing sometimes supports downward inferences from the personal to the sub-personal level. An example of a downward inference is (...) provided and an objection is considered. (shrink)

Until recently, the notions of function and multiple realization were supposed to save the autonomy of psychological explanations. Furthermore, the concept of supervenience presumably allows both dependence of mind on brain and non-reducibility of mind to brain, reconciling materialism with an independent explanatory role for mental and functional concepts and explanations. Eliminativism is often seen as the main or only alternative to such autonomy. It gladly accepts abandoning or thoroughly reconstructing the psychological level, and considers reduction if successful as equivalent (...) with elimination. In comparison with the philosophy of mind, the philosophy of biology has developed more subtle and complex ideas about functions, laws, and reductive explanation than the stark dichotomy of autonomy or elimination. It has been argued that biology is a patchwork of local laws, each with different explanatory interests and more or less limited scope. This points to a pluralistic, domain-specific and multi-level view of explanations in biology. Explanatory pluralism has been proposed as an alternative to eliminativism on the one hand and methodological dualism on the other hand. It holds that theories at different levels of description, like psychology and neuroscience, can co-evolve, and mutually influence each other, without the higher-level theory being replaced by, or reduced to, the lower-level one. Such ideas seem to tally with the pluralistic character of biological explanation. In biological psychology, explanatory pluralism would lead us to expect many local and non-reductive interactions between biological, neurophysiological, psychological and evolutionary explanations of mind and behavior. This idea is illustrated by an example from behavioral genetics, where genetics, physiology and psychology constitute distinct but interrelated levels of explanation. Accounting for such a complex patchwork of related explanations seems to require a more sophisticated and precise way of looking at levels than the existing ideas on (reductive and non-reductive) explanation in the philosophy of mind. (shrink)

The distinction between personal level explanations and subpersonal ones has been subject to much debate in philosophy. We understand it as one between explanations that focus on an agent’s interaction with its environment, and explanations that focus on the physical or computational enabling conditions of such an interaction. The distinction, understood this way, is necessary for a complete account of any agent, rational or not, biological or artificial. In particular, we review some recent research in Artificial Life that pretends to (...) do completely without the distinction, while using agent-centred concepts all the way. It is argued that the rejection of agent level explanations in favour of mechanistic ones is due to an unmotivated need to choose among representationalism and eliminativism. The dilemma is a false one if the possibility of a radical form of externalism is considered. (shrink)

This paper attempts in the first instance to clarify the application of the personal/sub-personal distinction to psychoanalysis and to indicate how this issue is related to that of psychoanalysis" epistemology. It is argued that psychoanalysis may be regarded either as a form of personal psychology, or as a form of jointly personal and sub-personal psychology, but not as a form of sub-personal psychology. It is further argued that psychoanalysis indicates a problem with the personal/sub-personal distinction itself as understood by Dennett (...) A revised view of the distinction, which is argued to reflect its true metaphysical significance, is proposed. (shrink)

the _algorithmic_, and the _implementational_; Zenon Pylyshyn (1984) calls them the _semantic_, the _syntactic_, and the _physical_; and textbooks in cognitive psychology sometimes call them the levels of _content_, _form_, and _medium_ (e.g. Glass, Holyoak, and Santa 1979).

In Rahul Banerjee and Bikas K. Chakrabarti (eds.), Progress in Brain Research, 168: 215-246. Amsterdam: Elsevier. Electronic offprint available upon request.

Despite its intuitive appeal and the empirical evidence for it, the hypothesis of cognitive polyphasia (Moscovici, 1961/1976/2008) remains largely unexplored. This article attempts to clarify some of the ideas behind this concept by examining its operations at the level of individuals and by proposing a conceptual model that includes some elements of social cognition. Indeed, calls for a rapprochement between the theory of social representations and cognitive psychology have been made by Moscovici, in particular, in his 1984 paper on The (...) myth of the lonely paradigm and in his paper on La nouvelle pensée magique (1992) in which he argues that the theory of social representations provides an explanatory framework for the descriptions offered by cognitive psychology and that their combining could translate into a finer understanding of contemporary social phenomena.Building on the results of an empirical examination of the controversy that surrounded the MMR vaccination programme in the UK between 1998 and 2005, different ways of engaging into cognitive polyphasia are proposed, including what can be described as cognitive “monophasia”, that is, the exclusive use of one type of knowledge, at least at the level of the individual. A brief discussion about the implications of the proposed conceptual model for our understanding of cognitive polyphasia and of the different ways of making sense of the world around us concludes this article. (shrink)

I begin by tracing some of the confusions regarding levels and reduction to a failure to distinguish two different principles according to which theories can be viewed as hierarchically arranged — epistemic authority and ontological constitution. I then argue that the notion of levels relevant to the debate between symbolic and connectionist paradigms of mental activity answers to neither of these models, but is rather correlative to the hierarchy of functional decompositions of cognitive tasks characteristic of homuncular functionalism. Finally, I (...) suggest that the incommensurability of the intentional and extensional vocabularies constitutes a strongprima facie reason to conclude that there is little likelihood of filling in the story of Bechtel''s missing level in such a way as to bridge the gap between such homuncular functionalism and his own model of mechanistic explanation. (shrink)

The possibility of group minds or group mental states has been considered by a number of authors addressing issues in social epistemology and related areas (Goldman 2004, Pettit 2003, Gilbert 2004, Hutchins 1995). An appeal to group minds might, in the end, do indispensable explanatory work in the social or cognitive sciences. I am skeptical, though, and this essay lays out some of the reasons for my skepticism. The concerns raised herein constitute challenges to the advocates of group minds (or (...) group mental states), challenges that might be overcome as theoretical and empirical work proceeds. Nevertheless, these hurdles are, I think, genuine and substantive, so much so that my tentative conclusion will not be optimistic. If a group mind is supposed to be a single mental system having two or more minds as proper parts,¹ the prospects for group minds seem dim. (shrink)

A fundamental error has dominated philosophy and science since ancient times, the assumption of the existence of the 'unicorn-world', that is, the existence of one unique world. In order to avoid this error, it is necessary to replace the unicorn-world with epistemologically different worlds (which presuppose that each class of entities forms a single, unique epistemological world within the same spatio-temporal framework). Within this new framework, we analyze the definition of the “I” in neural (physical) terms and psychological terms and (...) the relationships between the “I” and the other EDWs. Moreover, I show that the majority of “mysteries” like entanglement, non-locality and non-spatiality, are due to the erroneous human thinking presupposition of the “world”, uni-verse in which everything (waves, micro and macro particles) has been situated since Ancient times. The replacement of the “world” with epistemologically different worlds (epistemologically constitutive interactions among classes of epistemologically different entities that belong to epistemologically different worlds) seems to be a better alternative for solving, in fact eliminating, the great mysteries of quantum mechanics. (shrink)

Many cognitive scientists, having discovered that some computational-level characterization f of a cognitive capacity φ is intractable, invoke heuristics as algorithmic-level explanations of how cognizers compute f. We argue that such explanations are actually dysfunctional, and rebut five possible objections. We then propose computational-level theory revision as a principled and workable alternative.

As much as assumptions about mechanisms and mechanistic explanation have deeply affected psychology, they have received disproportionately little analysis in philosophy. After a historical survey of the influences of mechanistic approaches to explanation of psychological phenomena, we specify the nature of mechanisms and mechanistic explanation. Contrary to some treatments of mechanistic explanation, we maintain that explanation is an epistemic activity that involves representing and reasoning about mechanisms. We discuss the manner in which mechanistic approaches serve to bridge levels rather than (...) reduce them, as well as the different ways in which mechanisms are discovered. Finally, we offer a more detailed example of an important psychological phenomenon for which mechanistic explanation has provided the main source of scientific understanding. (shrink)