Higher-Order Theories of Consciousness

In this article, we will describe higher order thought theories of consciousness. Then we will describe some examples from synesthesia. Finally, we will explain why the latter may be relevant to the former.

I discuss here the nature of nonconscious mental states and the ways in which they may differ from their conscious counterparts. I first survey reasons to think that mental states can and often do occur without being conscious. Then, insofar as the nature of nonconscious mentality depends on how we understand the nature of consciousness, I review some of the major theories of consciousness and explore what restrictions they may place on the kinds of states that can occur nonconsciously. I (...) close with a discussion of what makes a state mental, if consciousness is not the mark of the mental. (shrink)

Peter Carruthers's essays on consciousness and related issues have had a substantial impact on the field, and many of his best are now collected here in revised form. The first half of the volume is devoted to developing, elaborating, and defending against competitors one particular sort of reductive explanation of phenomenal consciousness, which Carruthers now refers to as 'dual-content theory'. Phenomenal consciousness - the feel of experience - is supposed to constitute the 'hard problem' for a scientific world view, and (...) many have claimed that it is an irredeemable mystery. But Carruthers here claims to have explained it. He argues that phenomenally conscious states are ones that possess both an 'analog' intentional content and a corresponding higher-order analog content, representing the first-order content of the experience. It is the higher-order analog content that enables our phenomenally conscious experiences to present themselves to us, and that constitutes their distinctive subjective aspect, or feel.The next two chapters explore some of the differences between conscious experience and conscious thought, and argue for the plausibility of some kind of eliminativism about conscious thinking. Then the final four chapters focus on the minds of non-human animals. Carruthers argues that even if the experiences of animals aren't phenomenally conscious, this needn't prevent the frustrations and sufferings of animals from being appropriate objects of sympathy and concern. Nor need it mean that there is any sort of radical 'Cartesian divide' between our minds and theirs of deep significance for comparative psychology. In the final chapter, he argues provocatively that even insects have minds that include a belief/desire/perception psychology much like our own. So mindedness and phenomenal consciousness couldn't be further apart.Carruthers's writing throughout is distinctively clear and direct. The collection will be of great interest to anyone working in philosophy of mind or cognitive science. (shrink)

Russell’s way out of his paradox via the impre-dicative theory of types has roughly the same logical power as Zermelo set theory - which supplanted it as a far more flexible and workable axiomatic foundation for mathematics. We discuss some new formalisms that are conceptually close to Russell, yet simpler, and have the same logical power as higher set theory - as represented by the far more powerful Zermelo-Frankel set theory and beyond. END.

The HOU-based analysis of ellipsis was shown byDalrymple et al. (1991) and Shieber et al. (1996) to correctly capture thecomplex interaction of VP-ellipsis, scope and anaphora and claimed toextend to further related phenomena. When applied to deaccenting, theanalysis makes a strong prediction, namely that all anaphors occurringin the deaccented part of a deaccented utterance are parallelanaphors, i.e., anaphors that resolve to their parallel counterpart inthe source. I argue that this prediction is supported by the data andshow that it correctly captures (...) the interaction of deaccenting withanaphora, (in)definiteness and focus. (shrink)

In this paper, we show that Higher{Order Coloured Uni cation { a form of uni cation developed for automated theorem proving { provides a general theory for modeling the interface between the interpretation process and other sources of linguistic, non semantic information. In particular, it provides the general theory for the Primary Occurrence Restriction which (Dalrymple et al., 1991)'s analysis called for.

It is often taken to be intuitively obvious that if one is in a given conscious state, then one knows that one is in that state. This alleged obvious truth lies at the heart of two very different philosophical doctrines fithe Cartesian doctrine that one has incorrigible knowledge about one?s own conscious states, and the view that one can explain all conscious states in terms of higher-order awareness of mental states. The present paper begins with a description of the real-life (...) case of Simon Browne, a man who believed he had no conscious states whatsoever, although all external evidence overwhelmingly suggests that he had. This case as well as other cases of what can be called?being in denial? figives reason to reject both the alleged intuitively obvious truth and the two philosophical doctrines which attempt to exploit it. Having abandoned these doctrines, it remains to give an account of Browne?s condition, which picks out both why it is possible and why it is so unusual. This is done by arguing that Browne?s belief is contrary to evidence which he absolutely ought to accept, and that this is necessarily, not just contingently, unusual. In addition, it is shown how Browne?s philosophical beliefs about the mind?body relation contributed to his odd belief. (shrink)

This work represents an attempt to stake out the landscape for dynamicism based on a radical dismissal of the information-processing paradigm that dominates the philosophy of cognitive science. In Section 2, after setting up the basic toolkit of a theory of minimal representationalism, I introduce the central tenets of dynamic systems theory (DST) by discussing recent research in the dynamics of embodiment (Thelen et al. [2001]) in the perseverative-reaching literature. A recent proposal on the dynamics of representation--the dynamic field approach (...) (Spencer and Schöner [2003])-- according to which the alleged representational gap between DST and representational theories of cognition needs to be bridged in order to explain higher-order cognitive activity will then be reviewed. In Section 3 I shall argue that Spencer and Schöner's attempt to bridge the representational gap may jeopardize the whole (antirepresentationalist) spirit of the DST project. In order to show why, I shall introduce the key concepts of "reliability of environment" and "primagenesis", and argue that DST can account for de-coupled, offline cognitive activity with no need of positing representational resources. Conclusions and directions for future research will follow. (shrink)

Consciousness entails self-consciousness. The entailment is generally denied for two reasons: some primitive forms of consciousness do not seem to require self-consciousness, and self-consciousness is regarded as a sophisticated capacity that need not accompany all conscious states. However, I show that what best explains how a mental state becomes conscious is that it is accompanied by a meta-psychological thought to the effect that one is in that mental state. I argue at some length that the meta-psychological state must specifically be (...) a thought , and show why reductionist accounts will not yield the desired explanation. ;Self-consciousness simply involves having meta-psychological thoughts or 'awareness', and must be distinguished from 'introspection' which is a more sophisticated form of self-awareness. Thus, given an adequate theory of conscious mentality, it follows that having conscious mental states entails self-consciousness. ;After arguing that mentality per se does not require consciousness, a series of arguments for the conclusion that 'being a conscious creature or system entails being self-conscious' is explored. The arguments center around the nature of phenomenal states, de se attitudes, and episodic memory. The fundamental strategy in each case is to argue first that being a conscious system involves having a specific mental capacity , and then to show how having that capacity involves self-consciousness. Most of these arguments succeed in proving the desired conclusion. (shrink)

Recent evidence points to widespread underconnectivity in autistic brains owing to deviant white matter, the fibers that make long connections between areas of the cortex. Subjects with autism show measurably fewer long-range connections between the parietal and prefrontal cortices. These findings may help shed light on the current debate in the consciousness literature about whether conscious states require both prefrontal and parietal/temporal components. If it can be shown that people with autism have conscious states despite such underconnectivity, this would constitute (...) an argument for the claim that conscious states can exist in posterior cortex without associated prefrontal activity. This in turn lends support to a class of theories according to which microconsciousness is possible—consciousness in small areas of cortex without active connections to the prefrontal cortex, as opposed to the higher-order thought (HOT) theory of consciousness, according to which conscious states can only occur when posterior cortical areas (in the parietal or temporal lobes) have active connections to the prefrontal cortex. In this chapter, after listing several candidate examples of consciousness without accompanying prefrontal connections, I will argue that autism provides yet another such example. I will also examine a recent version of the higher-order theory that acknowledges these cases of consciousness without prefrontal activity and, instead depicts consciousness as requiring higher-order thoughts located in posterior cortex. In the final section, I will examine the consequences of these views for our understanding of the metaphysical nature of consciousness itself—the classic mind-body problem. (shrink)

I try to reconcile Dretske's representational theory of conscious mental states with Rosenthal's higher-order thought theory of conscious mental states by arguing that Rosenthal's HOT can make room for the notion of a state of consciousness whereby an invidual may be conscious of an object or property without thereby being conscious of being in such a state.

In this article, I develop a higher-order interpretation of Leibniz's theory of consciousness according to which memory is constitutive of consciousness. I offer an account of Leibniz's theory of memory on which his theory of consciousness may be based, and I then show that Leibniz could have developed a coherent higher-order account. However, it is not clear whether Leibniz held (or should have held) such an account of consciousness; I sketch an alternative that has at least as many advantages as (...) the higher-order theory. This analysis provides an important antecedent to the contemporary discussions of higher-order theories of consciousness. (shrink)

I show that Nietzsche's puzzling and seemingly inconsistent claims about consciousness constitute a coherent and philosophically fruitful theory. Drawing on some ideas from Schopenhauer and F.A. Lange, Nietzsche argues that conscious mental states are mental states with conceptually articulated content, whereas unconscious mental states are mental states with non-conceptually articulated content. Nietzsche's views on concepts imply that conceptually articulated mental states will be superficial and in some cases distorting analogues of non-conceptually articulated mental states. Thus, the claim that conscious states (...) have a conceptual articulation renders comprehensible Nietzsche's claim that consciousness is "superficial" and "falsifying.". (shrink)

Purpose: The paper discusses the concept of a reflexive domain, an arena where the apparent objects as entities of the domain are actually processes and transformations of the domain as a whole. Human actions in the world partake of the patterns of reflexivity, and the productions of human beings, including science and mathematics, can be seen in this light. Methodology: Simple mathematical models are used to make conceptual points. Context: The paper begins with a review of the author's previous work (...) on eigenforms - objects as tokens for eigenbehaviors, the study of recursions and fixed points of recursions. The paper also studies eigenforms in the Boolean reflexive models of Vladimir Lefebvre. Findings: The paper gives a mathematical definition of a reflexive domain and proves that every transformation of such a domain has a fixed point. Thus eigenforms exist in reflexive domains. We discuss a related concept called a "magma." A magma is composed entirely of its own structure-preserving transformations. Thus a magma can be regarded as a model of reflexivity and we call a magma "reflexive" if it encompasses all of its structure-preserving transformations. We prove a fixed point theorem for reflexive magmas. We then show how magmas are related to knot theory and to an extension of set theory using knot diagrammatic topology. This work brings formalisms for self- reference into a wider arena of process algebra, combinatorics, non-standard set theory and topology. The paper then discusses how these findings are related to lambda calculus, set theory and models for self- reference. The last section of the paper is an account of a computer experiment with a variant of the Life cellular automaton of John H. Conway. In this variant, 7-Life, the recursions lead to self-sustaining processes with very long evolutionary patterns. We show how examples of novel phenomena arise in these patterns over the course of large time scales. Value: The paper provides a wider context and mathematical conceptual tools for the cybernetic study of reflexivity and circularity in systems. (shrink)

What is consciousness? brentano suggests that consciousness is a simple binary relation between a self and an object. in this paper, i offer a textual clarification and a qualified philosophical defense of brentano's suggestion. in part i, i indicate the ordinary facts of subjective experience that any adequate theory of consciousness must account for. in part ii, i argue on textual grounds that brentano's theory has been misunderstood by chisholm. in part iii, i argue that brentano's theory meets the conditions (...) of an adequate theory. (shrink)

In this article, I will draw on my own work and related publications to present some intuitions and hypotheses about the nature of the self and the mechanisms that lead to the development of consciousness or self awareness in human infants during the first 6 months of life. My main purpose is to show that the origins of a concept of self include the physical and the mental selves. I believe that it is essential when trying to understand what a (...) mental state is, that one identifies the social and physical aspects of the person to whom the mental state belongs. How can one identify a mental state or thought without making reference to a subject who experiences it (Hobson, 1990)? The other important feature of the self is that it is distinguished from other people and inanimate objects. ‘One's concept of self is a concept of a person; one's concept of persons cannot be a concept applicable only to a single individual (oneself), for the reason that in this case it would no longer constitute a concept'(Hobson, 1990, p. 165). I would like to argue that infants must be able to represent their physical and social selves in order to recognize that they are similar and different from other people, and to develop expectations and predictions about the behaviour of others (theory of mind). Unlike Strawson, I do not believe that the social and physical aspects of the self are, or become redundant to the nature of the self. I posit that the mature conscious self is a unique mythical and constantly changing entity, the formation of which is created not by the individual alone, but through continuous dialectical inquiry with other people. (shrink)

We show that the solvability of matching problems in the simply typed λ-calculus, up to β equivalence, is not decidable. This decidability question was raised by Huet [4].Note that there are two variants of the question: that concerning β equivalence, and that concerning βη equivalence.The second of these is perhaps more interesting; unfortunately the work below sheds no light on it, except perhaps to illustrate the subtlety and difficulty of the problem.

Alexius Meinong's specific use of the term "self-presentation" had a significant influence on modern epistemology and philosophical psychology. To show that there are remarkable parallels between Meinong's account of the self-presentation of experiences and Lehrer's account of the exemplarization of experiences is one of this paper's main objectives. Another objective is to put forward some comments and critical remarks to Lehrer's approach. One of the main problems can be expressed by the following: The process of using a particular experience as (...) a sample, that is, an exemplar that we use to stand for and refer to a plurality of experiences, Lehrer calls "exemplarization". As concrete experiences are multifarious (red and round, for example), how can we single out a specific sort of experiences (the red ones) by the process of exemplarization when we use such a multifarious experience as a sample? (shrink)