Online research in philosophy

In Philosophy of Mental Representation five of the most original and important thinkers in philosophy of mind engage in an overlapping dialogue about mental representation. In new papers, contributors Andy Clark, Robert Cummins, Daniel Dennett, John Haugeland, and Brian Cantwell Smith each investigate the views and claims of one of the other contributors regarding mental representation. The subject then offers a reply. An exciting feature of this collection is the dynamic discussion among all contributors following each exchange. This collection offers the latest thinking on mental representation carefully and critically analyzed by the leading thinkers in the field.

I examine the following question: Do actions require representations that are intrinsic to the action itself? Recent work by Mark Rowlands, Michael Wheeler, and Andy Clark suggests that actions may require a minimal form of representation. I argue that the various concepts of minimal representation on offer do not apply to action per se and that a non-representationalist account that focuses on dynamic systems of self-organizing continuous reciprocal causation at the sub-personal level is superior. I further recommend a scientific pragmatism regarding the concept of representation.

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.

In this paper, I show how some of the fundamental problems that face a structuralist conception of representation can be solved by (a) distinguishing between three relevant senses of ‘representation’ (i.e. denotation, epistemic representation, and faithful epistemic representation), (b) claiming that, properly understood, the structural conception of representation aims at providing us with an account of faithful epistemic representation not of epistemic representation simpliciter, and (c) adopting an interpretational conception of epistemic representation.

Human self-consciousness operates at different levels of complexity and at least comprises five different levels of representational processes. These five levels are nonconceptual representation, conceptual representation, sentential representation, meta-representation, and iterative meta-representation. These different levels of representation can be operationalized by taking a first-person-perspective that is involved in representational processes on different levels of complexity. We refer to experiments that operationalize a first-person-perspective on the level of conceptual and meta-representational self-consciousness. Interestingly, these experiments show converging evidence for a recruitment of medial cortical and parietal regions during taking a first-person-perspective, even when operating on different degrees of complexity. These data lend support for the speculative hypothesis, that there exist a neural signature for human self-consciousness that is recruited independent from the degree of representational complexity to be performed.

I claim that consciousness, just as thought or action, is only to be found at the personal level of explanation. Dennett's account is often taken to be at odds with this view, as it is seen as explicating consciousness in terms of sub-personal processes. Against this reading, and especially as it is developed by John McDowell, I argue that Dennett's work is best understood as maintaining a sharp personal/sub-personal distinction. To see this, however, we need to understand better what content ascription at the sub-personal level actually means. When we do we can see how Dennett presents both a philosophical account of consciousness and informed empirical speculation on the nature of its sub-personal underpinnings. Consciousness is a product of certain capacities that are intelligible only at the personal level, capacities that are neither present at the sub-personal level of brain mechanism nor present in 'sub-persons', e.g. some, if not all, non-human animals.

Since 1969, when Dennett introduced a distinction between personal and sub-personal levels of explanation, many philosophers have used 'sub-personal' very loosely, and Dennett himself has abandoned a view of the personal level as genuinely autonomous. I recommend a position in which Dennett's original distinction is crucial, by arguing that the phenomenon called mental causation is on view only at the properly personal level. If one retains the commit-' ments incurred by Dennett's early distinction, then one has a satisfactory anti-physicalistic, anti-dualist philosophy of mind. It neither interferes with the projects of sub-personal psychology, nor encourages ; instrumentalism at the personal level.

This paper explores a new understanding of mind or mental representation by arguing that contents at the personal level are not carried by vehicles. Contentful mental states at the personal level are distinctive by virtue of their vehicle-less nature: the subpersonal physiological or functional states that are associated with and enable personal level contents cannot be understood as their vehicles, neither can the sensations or the sensory conditions associated with perceptual contents. This result is obtained by first extending the interpretationist ideas of Davidson and Dennett to show that subpersonal physiological or functional states cannot be construed as the vehicles of personal level contents. Then the anti-foundationalist arguments of Sellars are extended to show that sensory states cannot stand as vehicles to perceptual contents. The line of argumentation extended from Sellars also provides a critique of the current trend to posit non-conceptual contents.