Higher-Order Theories of Consciousness

In Gennaro (2016), I had originally replied to Fred Adams and Charlotte Shreve’s (2016) paper entitled “What Can Synesthesia Teach Us About Higher Order Theories of Consciousness?,” previously published in Symposion. I argued that H.O.T. theory does have the resources to account for synesthesia and the specific worries that they advance in their paper, such as the relationship between concepts and experience and the ability to handle instances of ‘pop-out’ experiences. They counter-reply in Adams and Shreve (2017) and also raise (...) further objections to H.O.T. theory which go well beyond the scope of their 2016 paper. In this paper, I offer additional replies to the points they raise in Adams and Shreve (2017). (shrink)

Review of Uriah Kriegel's 'The Varieties of Consciousness'.

The “Problem of the Rock” (PoR) is a famous objection to Higher-Order (HO) theories of consciousness. According to PoR, the HO theorists’ claim that a mental state is conscious iff there is a higher-order mental state about it implies that a rock is also conscious iff there is a higher-order mental state about it. In this paper I show that this argument confuses two grammatically distinct attributions of consciousness, and that if the consequent equivocation fallacy is avoided, PoR is either (...) a straw man argument or has an unproblematic conclusion. (shrink)

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.

According to the standard argument from targetless higher-order representations, the possibility of such representations presents a dilemma for higher-order theorists. In this article I argue that there are two theoretically well-motivated replies to the standard argument. Consequently, the standard argument against higher-order theories fails. I then go on to argue that while certain versions of higher-order theory can adequately respond to the standard argument, they both, nevertheless, fail to explain the fineness-of-grain that phenomenally conscious experience appears to have.

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.

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.

Many philosophers and scientists have argued that the difference between phenomenally conscious states and other kind of states lies in the implicit self-awareness that conscious states have. Higher-Order Representationalist theories, attempt to explain such a self-awareness by means of a higher-order representation. Consciousness relies on our capacity to represent our own mental states, consciousness depends on our Theory of Mind. Such an ability can, at least conceptually, be decomposed into another two: mindreading and metacognition. In this paper I will argue (...) that consciousness cannot depend on mindreading. The tenability of HOR theories depends, therefore, on the relation between mindreading and metacognition. I analyze several views on such a relation and argue that none of them seem to be a plausible option for HOR theories. (shrink)

In this paper I develop a modified version of the higher-order thought theory of consciousness. I argue that a mental state is conscious when it is accompanied by an implicit de se thought. This new version is important because it can accomodate the objection that a higher-order thought which is the conclusion of a conscious inference is not able to make a state mental conscious. Also I argue that if introspection consists in one's having an explicit de se thought, the (...) distinction between conscious mental states and mental states which are in addition introspected can be preserved. (shrink)

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)

Due to their reliance on constitutive higher-order representing to generate the qualities of which the subject is consciously aware, I argue that the major existing higher-order representational theories of consciousness insulate us from our first-order sensory states. In fact on these views we are never properly conscious of our sensory states at all. In their place I offer a new higher-order theory of consciousness, with a view to making us suitably intimate with our sensory states in experience. This theory relies (...) on the idea of ‘quoting’ sensory qualities, so is dubbed the ‘quotational higher-order thought theory’. I argue that it can capture something of the idea that we are ‘acquainted’ with our conscious states without slipping beyond the pale for naturalists, whilst also providing satisfying treatments of traditional problems for higher-order theories concerning representational mismatch. The theory achieves this by abandoning a representational mechanism for mental intentionality, in favour of one based on ‘embedding’. (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)

The notion of consciousness, though central to contemporary philosophy of mind, is not well understood. This fact vitiates many recent attempts to develop a theory of consciousness. I aim to achieve a deeper understanding of consciousness by considering what it is that distinguishes conscious mental phenomena from non-conscious mental phenomena. I argue that, contrary to widespread opinion, consciousness is not a matter of a mental state's possessing phenomenality. Nor is it simply a matter of an organism's developing a mental representation, (...) first order or higher order. Rather, I argue, conscious mental phenomena are distinguished from non-conscious mental phenomena by their positioning within a cognitive system. In particular, the conscious mental phenomena are all and only those that are both immediately available to a cognitive mechanism with the function of controlling behavior in novel circumstances and capable of engaging controlled attention. Although my account invokes something like Michael Tye's notion of a mental state's being "poised" to affect certain cognitive mechanisms, it differs from Tye's theory on which mechanisms a state must be poised to affect in order to be conscious. My account is further distanced from Tye's and Dretske's first order representational theories in that it does not restrict the contents of conscious experiences to non-conceptual contents. Rather, I maintain that the contents of conscious experiences are quite diverse, including both conceptual and non-conceptual contents. My arguments, both positive and negative, draw upon a variety of considerations, including the rich body of theory and data emerging from recent work in cognitive science, phenomenological considerations, and more general philosophical considerations such as overall coherence, simplicity, and argumentative support. If correct, my views not only undermine recent arguments for or against the explicability or reducibility of consciousness in physicalist terms, they show that those arguments are not about consciousness at all. Rather, on the framework that emerges in the dissertation, these arguments are about either the contents of mental phenomena or their phenomenal character---neither of which is consciousness. (shrink)

In this paper, it is argued that “higher states of consciousness”–or mystical experiences–have two main sources: they can be caused by a disruption of the normal homeostasis of the human organism and also by an intensification of the “consciousness-energy” that constitutes our being. . The author investigates examples of both types of experience, and compares and contrasts them. It is concluded that the second type of experience is the only one which is truly positive and which can become a fully (...) integrated and permanent higher state of consciousness. (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)

Philosophical Explorations, Volume 17, Issue 2, Page 172-187, June 2014.

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)

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)