Among our conscious states are conscious thoughts. The question at the center of the recent growing literature on cognitive phenomenology is this: In consciously thinking P, is there thereby any phenomenology—is there something it’s like? One way of clarifying the question is to say that it concerns whether there is any proprietary phenomenology associated with conscious thought. Is there any phenomenology due to thinking, as opposed to phenomenology that is due to some co-occurring sensation or mental image? In this (...) paper we will present two arguments that a “yes” answer to this question of cognitive phenomenology can be obtained via appeal to the HOT theory of consciousness, especially the version articulated and defended by David Rosenthal. (shrink)

Various psychopathologies of self-awareness, such as somatoparaphrenia and thought insertion in schizophrenia, might seem to threaten the viability of the higher-order thought (HOT) theory of consciousness since it requires a HOT about one’s own mental state to accompany every conscious state. The HOT theory of consciousness says that what makes a mental state a conscious mental state is that there is a HOT to the effect that “I am in mental state M” (Rosenthal 2005, (...) Gennaro 2012). In a previous publication (Gennaro 2015), I argued that a HOT theorist can adequately respond to this concern with respect to somatoparaphrenia. Somatoparaphrenia is a “depersonalization disorder” which is characterized by the sense of alienation from parts of one’s body. It is a bizarre type of body delusion where one denies ownership of a limb or an entire side of one’s body. My focus in the chapter, however, is on “inserted thoughts” which is a common symptom of schizophrenia, although it will also be useful to contrast it with somatoparaphrenia. Schizophrenia is a mental disorder which most commonly manifests itself through auditory hallucinations, paranoid or bizarre delusions, or disorganized speech and thinking. Thought insertion is the delusion that some thoughts are not “one’s own” in some sense or are somehow being inserted into one’s mind by someone else. Graham and Stephens (2000), for example, have suggested that thought insertion should be understood as alienated self-consciousness or meta-representation. I argue that HOT theory has nothing to fear from this phenomenon either and can consistently explain what happens in this admittedly unusual case. (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)

This interdisciplinary work contains the most sustained attempt at developing and defending one of the few genuine theories of consciousness.

David Rosenthal's higher-order thought theory is one of the most widely argued for of the higher-order accounts of consciousness. I argue that Rosenthal vacillates between two models of the HOT theory. First, I argue that these models employ different concepts of 'state consciousness'; the two concepts each refer to mental state tokens, but in virtue of different properties. In one model, the concept of 'state consciousness' is more consistent with how the term (...) is typically used, both by philosophers and scientists, and in commonsense usage. This model, however, also has its problems. In the second part of the paper, I develop a modified version of Rosenthal's transitivity principle, thereby avoiding some complications that stem from the original transitivity principle. I suggest that Rosenthal occasionally employs this modified model himself, and that the inconsistency identified in the first section of this paper might really reflect Rosenthal's vacillation between these two versions of the transitivity principle. I offer one explanation for how this equivocation may have occurred. These two versions would result if articulations of the transitivity principle employed the term 'mental state' inconsistently, to refer on some occasions merely to mental state types, and on others, to tokened mental states. I conclude by arguing, contrary to Rosenthal and others, that the theory is not incompatible with view that conscious states are uniquely casual efficacious. (shrink)

ABSTRACT I begin by developing a challenge for the Higher-Order Thought variant of Higher-Order representational theories of consciousness. The challenge is to account for the distinctive phenomenal character of visual experience—its presentational character. After setting out the challenge, I articulate a novel form of Higher-Order theory that can account for presentational character—the Map Theory of consciousness. The theory’s distinctive claim is that the relevant higher-order representations have a cartographic (...) format. (shrink)

The fact that we can engage in first-person discourse about our own mental states seems, intuitively, to be bound up with consciousness. David Rosenthal draws upon this intuition in arguing for his higher-order thought theory of consciousness. Rosenthal's argument relies upon the assumption that the truth-conditions for "p" and "I think that p" differ. It is argued here that the truth-conditional schema debars "I think" from playing one of its roles and thus is not a (...) good test for what is asserted when "I think" is employed in making an assertoric utterance. The critique of Rosenthal's argument allows us to make explicit the intuitions which shape higher-order representation theories of consciousness in general. Consciousness and first-person mental discourse seem to be connected primarily because consciousness is an epistemic term, used to denote first-person knowledge of minds. Higher-order thought theories of consciousness draw upon this epistemic notion of consciousness, and because self-knowledge seems to involve higher-order representation, the higher-order theorist can deploy what is in effect an "error theory" about conscious experience disguised as a kind of conceptual analysis of our ordinary concept of a conscious mental state. The conclusion reached is that there is unlikely to be a simple or direct path from considerations about mental discourse to conclusions about the nature of consciousness. (shrink)

Dienes & Perner offer us a theory of explicit and implicit knowledge that promises to systematise a large and diverse body of research in cognitive psychology. Their advertised strategy is to unpack this distinction in terms of explicit and implicit representation. But when one digs deeper one finds the “Higher-Order Thought” theory of consciousness doing much of the work. This reduces both the plausibility and usefulness of their account. We think their strategy is broadly correct, but (...) that consensus on the explicit/implicit knowledge distinction is still a fair way off. (shrink)

According to what Birch (2022) calls the theory-heavy approach to investigating nonhuman-animal consciousness, we select one of the well-developed theories of consciousness currently debated within contemporary cognitive science and investigate whether animals exhibit the neural structures or cognitive abilities posited by that theory as sufficient for consciousness. Birch argues, however, that this approach is in general problematic because it faces what he dubs the dilemma of demandingness—roughly, that we cannot use theories that are based on (...) the human case to assess consciousness in nonhuman animals and vice versa. We argue here that, though this dilemma may problematize the application of many current accounts of consciousness to nonhuman animals, it does not challenge the use of standard versions of the higher-order thought theory (“HOTT”) of consciousness, according to which a creature is in a conscious mental state just in case it is aware of being in that state via a suitable higher-order thought (“HOT”). We show this in two ways. First, we argue that, unlike many extant theories of consciousness, HOTT is typically motivated by a commonsense, and more importantly, neutral condition on consciousness that applies to humans and animals alike. Second, we offer new empirical and theoretical reasons to think that many nonhuman animals possess the relevant HOTs necessary for consciousness. Considering these issues not only reveals the explanatory power of HOTT and some of its advantages over rival accounts, but also enables us to further extend and clarify the theory. (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)

Theories of what it is for a mental state to be conscious must answer two questions. We must say how we're conscious of our conscious mental states. And we must explain why we seem to be conscious of them in a way that's immediate. Thomas Natsoulas distinguishes three strategies for explaining what it is for mental states to be conscious. I show that the differences among those strategies are due to the divergent answers they give to the foregoing questions. (...) Natsoulas finds most promising the strategy that amounts to the higher-order-thought hypothesis that I've defended elsewhere. But he raises a difficulty for it, which he thinks probably can be met only by modifying that strategy. I argue that this is unnecessary. The difficulty is a special case of a general question, the answer to which is independent of any issues about consciousness. So it's no part of a theory of consciousness to address the problem, much less solve it. Moreover, the difficulty seems to have intuitive force only given the picture that underlies the other two explanatory strategies, which both Natsoulas and I reject. (shrink)

An overview of higher-order representational theories of consciousness. Representational theories of consciousness attempt to reduce consciousness to “mental representations” rather than directly to neural or other physical states. This approach has been fairly popular over the past few decades. Examples include first-order representationalism (FOR) which attempts to explain conscious experience primarily in terms of world-directed (or first-order) intentional states (Tye 2005) as well as several versions of higher-order representationalism (HOR) (...) which holds that what makes a mental state M conscious is that it is the object of some kind of higher-order mental state directed at M. The primary focus of this entry is on HOR and especially higher-order thought (HOT) theory. The key question that should be answered by any theory of consciousness is: What makes a mental state a conscious mental state? Section 1 introduces the overall representationalist approach to consciousness and briefly discuss Tye’s FOR. Section 2 presents three major versions of HOR: higher-order thought theory, dispositional higher-order thought theory, and higher-order perception theory. In section 3, a number of common and important objections and replies are presented. Section 4 briefly outlines a close connection between HOT theory and conceptualism, that is, the claim that the representational content of a perceptual experience is entirely determined by the conceptual capacities the perceiver brings to bear in her experience. Section 5 examines several hybrid higher-order and “self-representational” theories of consciousness which all hold that conscious states are self-directed in some way. Section 6 addresses the potentially damaging claim that HOT theory requires neural activity in the prefrontal cortex (PFC) in order for one to have conscious states. (shrink)

Over many years and in many publications David Rosenthal has developed, defended and applied his justly well-known higher-order thought theory of consciousness.2 In this paper I explain the theory, then provide a brief history of a major objection to it. I suggest that this objection is ultimately ineffectual, but that behind it lies a reason to look beyond Rosenthal's theory to another sort of HOT theory. I then offer my own HOT theory as a suitable alternative, (...) before concluding in a final section. Resumo Durante muitos anos, e em muitas publicações, David Rosenthal desenvolveu, defendeu e aplicou sua justamente reconhecida teoria da consciência, intitulada high-order thought. Neste artigo, explico a teoria e, em seguida, forneço uma breve história de uma objeção maior feita a ela. Sugiro que essa objeção é, em última análise, ineficaz, mas que por trás disso há uma razão para olhar além da teoria de Rosenthal, para outro tipo de teoria HOT. Então ofereço minha própria teoria HOT como uma alternativa adequada, antes de concluir, em uma seção final, a respeito de questões filosóficas aqui envolvidas. (shrink)

This paper makes a comparison between naturalist and non-naturalist theories of consciousness with respect to their explanatory merits. It focuses on David Rosenthal's higher-order thought theory, arguing that the motives for higher-order theories are based on a confusion of three distinct meanings of the term 'intrinsic'. The explanatory power of HOT theories is compared with that of an alternative nonrepresentational theory, offered as an example of a naturalistic account. The latter is (...) found overall to have more virtues and less shortcomings that the higher-order theory. (shrink)

The higher-order thought (HOT) theory of consciousness is a reductive representational theory of consciousness which says that what makes a mental state conscious is that there is a suitable HOT directed at that mental state. Although it seems that any neural realization of the theory must be somewhat widely distributed in the brain, it remains unclear just how widely distributed it needs to be. In section I, I provide some background and define some key terms. (...) In section II, I argue against the view that HOT theory should treat first-order (i.e. world-directed) conscious states as requiring prefrontal cortical activity though it is reasonable to suppose that conscious states are realized in the brain. In section III, I then explore some of the key background metaphysical issues involved in understanding the nature of consciousness, such as the debate between realism and idealism as well as the prospects for solving the so-called “hard problem” of consciousness. Some of the differences in question often mirror the traditional differences between Western and Eastern perspectives on the nature of consciousness. Overall, I argue that some form of realism and physicalism is more plausible than the opposing views. I also argue that materialists (and especially HOT theorists) can offer plausible replies to the hard problem. (shrink)

Higher‐order theories purport to account for the conscious character of such states in terms of higher‐order representations. This chapter focuses on three classes of higher‐order theory of phenomenal consciousness, including inner‐sense theory, actualist higher‐order thought theory, and dispositionalist higher‐order thought theory. All three of these higher‐order theories purport to offer reductive explanations of phenomenal consciousness. Inner‐sense theory has important positive virtues, but faces (...) problems; whereas actualist higher‐order thought theory avoids those problems, but at the cost of losing the positive virtues. Actualist higher‐order thought theory has the advantage that no special organs or mechanisms need to be postulated. Dispositionalist higher‐order thought theory claims to split the difference, providing an account that has all of the advantages of inner‐sense theory with none of the flaws. The success of dispositionalist higher‐order thought theory is premised upon the existence of dual analog contents. (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.

Higher-order thought theories of consciousness attempt to explain what it takes for a mental state to be conscious, rather than unconscious, by means of a HOT that represents oneself as being in the state in question. Rosenthal Consciousness and the self: new essays, Cambridge University Press, Cambridge, 2011) stresses that the way we are aware of our own conscious states requires essentially indexical self-reference. The challenge for defenders of HOT theories is to show (...) that there is a way to explain the required reference-fixing mechanisms that is compatible with the theory. According to Rosenthal, the reference to oneself as such is grounded in the disposition to identify the individual the HOT refers to as the individual who has that HOT. I argue that this leads to a vicious infinite regress on the more than plausible assumption that our cognitive capacities are limited. This leaves such theories without a foundation, since self-reference is thought essential to consciousness. (shrink)

Higher-Order (HO) theories of consciousness have in common the idea that what makes a mental state conscious is that it is the object of some kind of higher-order representation. This volume presents fourteen previously unpublished essays both defending and criticizing this approach to the problem of consciousness. It is the first anthology devoted entirely to HO theories of consciousness. There are several kinds of HO theory, such as the HOT (higher- (...) class='Hi'>order thought) and HOP (higher-order perception) models, and each is discussed and debated. Part One contains essays by authors who defend some form of HO theory. Part Two includes papers by those who are critics of the HO approach. Some of the topics covered include animal consciousness, misrepresentation, the nature of pain, subvocal speech, subliminal perception, blindsight, the nature of emotion, the difference between perception and thought, first-order versus higher-order theories of consciousness, and the relationship between nonconscious and conscious mentality. (Series A). (shrink)

Currently, one of the most influential theories of consciousness is Rosenthal's version of higher-order-thought (HOT). We argue that the HOT theory allows for two distinct interpretations: a one-component and a two-component view. We further argue that the two-component view is more consistent with his effort to promote HOT as an explanatory theory suitable for application to the empirical sciences. Unfortunately, the two-component view seems incapable of handling a group of counterexamples that we refer to as (...) cases of radical confabulation. We begin by introducing the HOT theory and by indicating why we believe it is open to distinct interpretations. We then proceed to show that it is incapable of handling cases of radical confabulation. Finally, in the course of considering various possible responses to our position, we show that adoption of a disjunctive strategy, one that would countenance both one-component and two-component versions, would fail to provide any empirical or explanatory advantage. (shrink)

Higher-order thought (HOT) theory says that a mental state is conscious when and only when represented by a conceptual, belief-like mental state. Plausibly, HOT theory predicts the impairment of HOT-producing brain areas to cause significant deficits in consciousness. This means that HOT theory can be refuted by identifying those brain areas that are candidates for producing HOTs, then showing that damage to these areas never produces the expected deficits of consciousness. Building this refutation is a (...) work-in-progress, with several key components of it already existing in the literature (e.g., Boly et al. in J Neurosci 37(40):9603–9613, 2017; Kozuch in Mind Lang, 37(5):790–813, 2022). This article pulls together and supplements these earlier components so as to provide a comprehensive lesion-based argument against HOT theory, one which offers extra data and arguments in support of it, and which also addresses common objections. (shrink)

Rolls defends a higher-order thought theory of phenomenal consciousness, mapping the distinction between conscious and non-conscious states onto a distinction between two types of action and corresponding neural pathways. Only one type of action involves higher-order thought and consequently consciousness. This account of consciousness has implausible consequences for the nature of stimulus-reinforcement learning.

According to Rosenthal’s Higher-Order Thought (HOT) theory of consciousness, first-order mental states become conscious only when they are targeted by HOTs that necessarily represent the states as belonging to self. On this view a state represented as belonging to someone distinct from self could not be a conscious state. Rosenthal develops this view in terms of what he calls the ‘thin immunity principle’ (TIP). According to TIP, when I experience a conscious state, I cannot be (...) wrong about whether it is I who I think is in that state. We first suggest that TIP is a direct consequence of the HOT theory. Next we argue that somatoparaphrenia—a pathology in which sensations are sometimes represented as belonging to other people—shows that TIP can be violated. This violation of TIP in turn shows that the HOT theory’s claim that conscious states are necessarily represented as belonging to self is in error. Rosenthal’s attempt to account for pathological cases is found to be inadequate when applied to somatoparaphrenia, and other possible defenses are also shown to be incapable of preserving TIP. We further conclude by suggesting that the HOT theory’s failing in this regard is not a failing that is peculiar to this theory of consciousness. (shrink)

David Rosenthal’s higher-order thought theory says that for a mental state to be conscious, it must be accompanied by a higher-order thought about that state. One objection to Rosenthal’s account is that HOTs do not secure what Sydney Shoemaker has called ‘immunity to error through misidentification’. I will argue that Rosenthal’s discussion of dissociative identity order fails to salvage his account from this objection and that his thin immunity principle is in tension with (...) cases of somatoparaphrenia. Rather than showing that self-awareness consists in identification, an examination of the delusions of disownership found in dissociative identity disorder and somatoparaphrenia lends support to IEM and highlights an important distinction between perspectival ownership and personal ownership. (shrink)

For nearly a decade, David Rosenthal has proposed that a mental state M of a creature C is conscious just in case C has a suitable higher-order thought directed toward M. While this theory has had its share of criticism in recent years, I believe that the real difficulties have been ignored. In this essay, I show that the presence of a higher order is insufficient for conscious experience, even if we suppose that the (...) class='Hi'>thought satisfies the constraints that Rosenthal lists . The only way Rosenthal's view could possibly yield sufficient conditions is by requiring that the higher-order thought be suitably causally related to its object. Yet, as I also show, the only causal constraint strong enough to do the job is not only ill-motivated but probably false. (shrink)

Consciousness is arguably the most important area within contemporary philosophy of mind and perhaps the most puzzling aspect of the world. Despite an explosion of research from philosophers, psychologists, and scientists, attempts to explain consciousness in neurophysiological, or even cognitive, terms are often met with great resistance. In The Consciousness Paradox, Rocco Gennaro aims to solve an underlying paradox, namely, how it is possible to hold a number of seemingly inconsistent views, including higher-order thought (...) (HOT) theory, conceptualism, infant and animal consciousness, concept acquisition, and what he calls the HOT-brain thesis. He defends and further develops a metapsychological reductive representational theory of consciousness and applies it to several importantly related problems. Gennaro proposes a version of the HOT theory of consciousness that he calls the "wide intrinsicality view" and shows why it is superior to various alternatives, such as self-representationalism and first-order representationalism. HOT theory says that what makes a mental state conscious is that a suitable higher-order thought is directed at that mental state. -/- Thus Gennaro argues for an overall philosophical theory of consciousness while applying it to other significant issues not usually addressed in the philosophical literature on consciousness. Most cognitive science and empirical works on such topics as concepts and animal consciousness do not address central philosophical theories of consciousness. Gennaro’s integration of empirical and philosophical concerns will make his argument of interest to both philosophers and nonphilosophers. (shrink)

Abstract: To evaluate the explanation of change blindness in terms of misrepresentation and determine its role for Rosenthal’s higher-order thought theory of consciousness, we present an alternative account of change blindness that affords an independent outlook and provides a viable alternative. First we describe Rosenthal’s actualism and the notion of misrepresentation, then introduce change blindness and the explanation of it by misrepresentation. Rosenthal asserts that, in change blindness, the first-order state tracks the post-change stimulus, but (...) the higher-order state misrepresents it. We propose the alternative that both post-change and pre-change content can be tracked by the first-order state, and that in change blindness the higher-order thought represents the pre-change state, resulting in a good-enough representation: true but not veridical. We compare the two explanations with respect to available data and analyse the principal theoretical claims. Discussing the rationale of the alternative account, we conclude that there is good reason to conceive of the mind as satisficing, geared towards reliability instead of truth-tracking, and guided by representations that are good enough as opposed to complete or corresponding to the facts. We end with some methodological remarks concerning the risk of cognitive biases in interdisciplinary research that brings together empirical and philosophical claims. (shrink)

According to higher-order theories of consciousness, a mental state is conscious only when represented by another mental state. Higher-order theories must predict there to be some brain areas (or networks of areas) such that, because they produce (the right kind of) higher-order states, the disabling of them brings about deficits in consciousness. It is commonly thought that the prefrontal cortex produces these kinds of higher-order states. In this (...) paper, I first argue that this is likely correct, meaning that, if some higher-order theory is true, prefrontal lesions should produce dramatic deficits in visual consciousness. I then survey prefrontal lesion data, looking for evidence of such deficits. I argue that no such deficits are to be found, and that this presents a compelling case against higher-order theories. (shrink)

My overall goal in The Consciousness Paradox: Consciousness, Concepts, and Higher-Order Thoughts is to solve what I take to be a paradox with regard to holding a series of interrelated theses, including a version of the higher-order thought theory of consciousness which says that what makes a mental state conscious is that there is a suitable higher-order thought directed at the mental state. Higher-order thoughts are metapsychological or (...) meta-cognitive states, that is, mental states directed at other mental states. This theory is primarily concerned with explaining how conscious mental states differ from unconscious mental states. In The Consciousness Paradox I defend and further develop a metapsychological reductive representational theory of consciousness and then apply it to several importantly related problems including concept acquisition and animal consciousness. (shrink)

Abstract: According to a higher-order theory of consciousness, you are in a conscious (psychological) state if and only if you are conscious of being in that state. This paper develops and discusses a Euthyphro dilemma for theories of this sort; that is, a dilemma which asks whether the state is conscious because you are conscious of being in it, or, alternatively, whether you are conscious of being in it because it is conscious. I focus on two (...) different versions of the higher-order theory: the higher-order thought theory, defended by David Rosenthal, Hakwan Lau and Richard Brown, among others, and the higher-order acquaintance theory, defended by Brie Gertler, Martine Nida-Rümelin and David Chalmers, among others. I argue that both versions of the view face a Euthyphro dilemma though the issue takes a different form in each case. (shrink)

Experiences, by definition, have phenomenal character. But many experiences have a specific type of phenomenal character: presentational character. While both visual experience and conscious thought make us aware of their objects, only in visual experience do objects seem present before the mind and available for direct access. I argue that Higher-Order Thought (HOT) theories of consciousness have a particularly steep hill to climb in accommodating presentational character.

For purposes of this paper, a conscious state is a mental state whose subject is directly or at least nonevidentially aware of being in it. (The state does not count as conscious if the subject has only been told about it by a cognitive scientist or psychologist; introspectively would be better, but no one should say that a state is conscious only if its subject actively introspects it.). N.b., this usage is only one among several quite different though of course (...) not competing ones; the phrase has been used in at least two other senses, as by, respectively, Dretske (1993, 1995) and Block (1995).1 My definition is stipulative, but not brutely so; it settles on one thing that is often meant by conscious state cf. a conscious memory, a conscious desire, a conscious intention, a conscious decision. According to higher-order (HO) theories of consciousness in this sense of consciousness, what makes a mental state a conscious one is that it is represented by another of the subject’s mental states, that in virtue of which s/he is aware of it. Some practitioners follow Locke in taking the higher-order state to be quasi-perceptual (Armstrong, 1968, 1980, Lycan 1991, 1996); others say it may be merely a thought about the original state (Rosenthal, 1986, 1990).2 There is an alleged objection to such theories, that originated with Goldman (1993)Error: Illegal entry in bfrange block in ToUnicode CMapError: Illegal entry in bfrange block in ToUnicode CMapError: Illegal entry in bfrange block in ToUnicode CMap3 and has since been voiced and discussed by others (Dretske 1995, Stubenberg 1998, Van Gulick 2000, 2005, Gennaro 2005, Kriegel 2009). I say alleged, because. (shrink)

According to David Rosenthal’s higher-order thought (HOT) theory of consciousness, a mental state is conscious just in case one is aware of being in that state via a suitable HOT. Jesse Mulder (2016) recently objects: though HOT theory holds that conscious states are states that it seems to one that one is in, the view seems unable to explain how HOTs engender such seemings. I clarify here how HOT theory can adequately explain the relevant mental appearances, (...) illustrating the explanatory power of HOT theory. (shrink)

The so-called 'higher-order thought' theory of consciousness says that what makes a mental state conscious is the presence of a suitable higher-order thought directed at it . The HOT theory has been or could be attacked from two apparently opposite directions. On the one hand, there is what Stubenberg has called 'the problem of the rock' which, if successful, would show that the HOT theory proves too much. On the other hand, it might (...) also be alleged that the HOT theory does not or cannot address the so-called 'hard problem' of phenomenal consciousness. If so, then the HOT theory would prove too little. We might say, then, that the HOT theory is arguably between a rock and a hard place. In this paper, I critically examine these objections and defend the HOT theory against them. In doing so, I hope to show that the HOT theory, or at least some version of it, neither proves too little nor too much, but is just right. I also show that these two objections are really just two sides of the same coin, and that the HOT theory is immune from David Chalmers' criticisms of other attempted reductionist accounts of consciousness. (shrink)

There is much that is interesting in Gennaro's discussion of concepts and concept acquisition, and in general I am very sympathetic to the goals of his book, even if not with every detail (for another account of these issues that I don't fully agree with see Rosenthal 2005, chapter 7). I agree that we have good reason to think that some version of a higher-order thought theory of consciousness could be true and that this is consistent (...) with animals and infants having conscious experience. However, Gennaro and I disagree on the very basic issue of how we formulate the higher-order theory and its explanatory goals, and so I will focus on these more basic issues in the remainder of this review. (shrink)

Somatoparaphrenia is a pathology of self characterized by the sense of alienaton from parts of one’s body. It is usually construed as a kind of delusional disorder caused by extensive right hemisphere lesions. Lesions in the temporoparietal junction are common in somatoparaphrenia but deep cortical regions (for example, the posterior insula) and subcortical regions (for example, the basal ganglia) are also sometimes implicated (Valler and Ronschi 2009). Patients are often described as feeling that a limb belongs to another person and (...) thus attribute ownership of the limb and bodily sensation to someone else. There is also some question as to whether or not the higher-order thought (HOT) theory of consciousness can plausibly account for the depersonalization psychopathology of somatoparaphrenia (Liang and Lane 2009, Rosenthal 2010, Lane and Liang 2010). Liang and Lane argue that it cannot. The HOT theory of consciousness says that what makes a mental state a conscious mental state is that it is the target of a HOT to the effect that “I am in mental state M” (Rosenthal 2005, Gennaro 2012). When the HOT is itself is unconscious, the conscious state is still outer-directed. When the HOT is conscious, we have introspection and so the conscious thought is directed at the mental state. In section I, I briefly review the previous exchange between Lane and Liang and David Rosenthal. In section II, I further explore somatoparaphrenia and the nature of delusion while offering a number of additional replies to Lane and Liang. In section III, I examine the central notions of “mental state ownership” and “self-concepts” in an effort to account especially for the depersonalization aspect of somatoparaphrenia against the background of HOT theory. In section IV, I argue that to the extent that somatoparaphrenia casts doubt on the notion that some thoughts are “immune to error through misidentification” (IEM), the most fundamental aspect of IEM is still consistent with HOT theory. Overall, I argue that HOT theory is left unscathed by the pheneomenon of somatoparaphrenia and can even help to explain what happens in these cases. (shrink)

This paper considers two subjective measures of the existence of unconscious mental states - the guessing criterion, and the zero correlation criterion - and considers the assumptions underlying their application in experimental paradigms. Using higher order thought theory the impact of different types of biases on the zero correlation and guessing criteria are considered. It is argued that subjective measures of consciousness can be biased in various specified ways, some of which involve the relation between first (...) order states and second order thoughts, and hence are not errors in measurement of the conscious status of mental states; but other sorts of biases are measurement errors, involving the relation between higher order thoughts and their expression. Nonetheless, it is argued this type of bias does not preclude subjective measures - both the guessing criterion and the zero correlation criterion - as being amongst the most appropriate and useful tools for measuring the conscious status of mental states. (shrink)

Josh Weisberg discusses what he calls the “Heidelberg Problem” (named after Dieter Henrich’s Heidelberg School). However, he mischaracterizes this problem and believes he is able so resolve the problem, as mischaracterized, as well as meet the de se constraint, in the theoretical frame of reference of the Higher-Order Thought Monitoring theory of consciousness. This commentary highlights the fundamental flaw in his approach, while encouraging further philosophical exchange with our American philosophical colleagues about the “Heidelberg Problem”.

Gennaro presents a version of the higher-order thought theory of consciousness that differs from the version defended by Rosenthal . I explore several key differences between Gennaro's and Rosenthal's views, with an eye toward establishing that Rosenthal's Extrinsic Higher-Order Thought theory is preferable to Gennaro's Wide Intrinsicality View . Gennaro's attempts to demonstrate the superiority of the WIV rest on an unargued and implausible assumption to the effect that the higher-order intentional (...) contents of self-representing conscious states are necessarily accurate. Gennaro relies on this assumption in avoiding what he sees as problematic consequences of Rosenthal's EHOT theory, which countenances the possibility that higher-order thoughts sometimes misrepresent lower-order states. I argue that these consequences, far from being problematic, actually constitute a strength of the EHOT theory, allowing it to explain phenomena such as dental fear, perceptual learning, and rare c.. (shrink)

In the interesting and thought-provoking article Grazziano and colleagues argue for their Attention Schema Theory (AST) of consciousness. They present AST as a unification of Global Workspace Theory (GWT), Illusionism, and the Higher-Order Thought (HOT) theory. We argue it is a mistake to equate 'subjective experience,' ad related terms, with dualism. They simply denote experience. Also, as presented, AST does not accurately capture the essence of HOT for two reasons. HOT is presented as a version (...) of strong illusionism, which it isn't, and HOT requires that one be aware of one's mental life, and postulates that his consists in a re-representation of what is occurring at at the lower-order levels. However, the authors deny that AST involves re-representing visual stimuli. We close by proposing an alternative unification: GWT and AST provide crucial accounts of how lower-order states are assembled and maintained, but higher-order theory provides the account of subjective experience. (shrink)

Higher Order Thought theories of consciousness contend that consciousness can be explicated in terms of a relation between mental states of different.

Higher-order representation (HOR) theories posit that the contents of lower-order brain states enter consciousness when tracked by a higher-order brain state. The nature of higher-order monitoring was examined in light of current scientific knowledge, primarily in experimental perceptual psychology. The most plausible candidate for higher-order state was found to be conceptual short-term memory (CSTM), a buffer memory intimately connected with a semantic engine operating in the medium of the language (...) of thought (LOT). This combination meets many of the requirements of HOR theories, although falling short in some significant respects, most notably the inability of higher- order states to represent more than a small fraction of the information contained in primary states, especially in vision. A possible way round this obstacle is suggested, involving the representation of visual detail by means of ensemble concepts. (shrink)

Higher-order theories of consciousness posit that a mental state is conscious by virtue of being represented by another mental state, which is therefore a higher-order representation (HOR). Whether HORs are construed as thoughts or experiences, higher-order theorists have generally contested whether such metarepresentations have any significant cognitive function. In this paper, I argue that they do, focusing on the value of conscious thinking, as distinguished from conscious perceiving, conscious feeling, and other forms (...) of conscious mentality. A thinking process is constituted by propositional-attitude states, and during conscious thinking some or all of these states would be targeted by HORs. Since cases of nonconscious thinking are widely accepted, the question arises as to the use of representing one's thoughts during thinking. Contra the views of Armstrong and Rolls, I argue that HORs do not facilitate first-order thinking. Rather, I propose that such representations enable reasoning about one's act of thinking, and I give various examples of this sort of metacognition in support of the theory. I further argue that the general correlation between complex thinking and its being conscious is merely due to the fact that assessing one's mental act is particularly useful during such thinking, not because consciousness somehow facilitates first-order inference-making, as folk psychology implies. My view is thus consistent with recent empirical evidence that complex thinking sometimes yields better results when nonconscious. (shrink)

All mental states, including thoughts, feelings, perceptions, and sensations, often occur consciously. But they all occur also without being conscious. So the first thing a theory of consciousness must do is explain the difference between thoughts, feelings, perceptions, and sensations that are conscious and those which are not.

Some advocates of higher-order theories of consciousness believe that the correct theory of consciousness together with empirical facts about animal intelligence make it highly unlikely that animals are capable of having phenomenally conscious experiences. I will argue that even if the higher-order thought (HOT) theory of consciousness is correct, there is good evidence (taken from experiments in mind reading and metacognition, as well as considerations from neurophysiology and evolutionary biology) that at (...) least some nonhuman animals can form the higher-order thoughts and thus will count as phenomenally conscious on HOT theory. (shrink)