Depersonalization/derealization disorder is classified as a dissociative disorder in the DSM5. It is noteworthy that the symptoms of depersonalization and derealization are commonly found in many other psychological disorders, including schizophrenia spectrum disorders, while phenomenological features of schizophrenia are commonly found in DPDR. The current study attempts to clarify these apparent similarities via highly detailed phenomenological interviews with four persons diagnosed with DPDR. The data revealed four interrelated facets: 1, Loss of resonance, 2, Detachment from experience, 3, Loss of self, (...) and 4, Commitment to reality. These facets point to a felt loss of immediate and familiar engagement in experience as a basic organizing Gestalt which permeates the various symptoms and signs of our participants with DPDR. Close consideration of this disruption allows their experiences to be more easily distinguished from those of schizophrenia-spectrum disorders. (shrink)

Soul beliefs are universal among religious folk but vary tremendously from culture to culture, In fact, in tribal societies without formal religious dogmas, soul beliefs can vary from individual to individual. A review of notions regarding the soul (or souls) amongst tribal and post-tribal societies does evidence, nonetheless, a recurring pattern of focus on the soul envisaged as the vital life energy of the body and/or as encapsulating one of more mental faculties. Not surprisingly, theories as to the psychological basis (...) for soul belief vary as well, but a strong case can be advanced that at its core, soul belief is about the essence of the self, which involves the psychological process of ipseity. (shrink)

In recent years, phenomenologically informed philosophers, psychologists and psychiatrists have attempted to import philosophical notions associated with the self into the empirical study of pathological experience. In particular, so-called ipseity disturbances have been put forward as generative of symptoms of schizophrenia, and several attempts have been made to operationalize and measure kinds and degrees of ipseity disturbances in schizophrenia. However, we find that this work faces challenges caused by the fact that the notion of ipseity is used ambiguously, both in (...) the philosophical and in the empirical discussion, and the methods employed to operationalize ipseity often portray a rather different understanding of the notion from that found in the literature that is cited as providing the philosophical foundation for the studies in question. In particular, according to the definitions found in the philosophical literature, while being phenomenologically available, the self is not represented in ipseity. However, when it comes to the empirical study of ipseity and its disturbances, the object of investigation is often a kind of explicit self-representation. As a result, it is unclear whether different researchers are really talking about the same thing. Future progress in this area will require more careful conceptual distinctions; the present article aims to contribute to this task. (shrink)

Cartesians and Lichtenbergians have diverging views of the deliverances of introspection. According to the Cartesians, a rational subject, competent with the relevant concepts, can come to know that he or she thinks – hence, that he or she exists – on the sole basis of his or her introspective awareness of his or her conscious thinking. According to the Lichtenbergians, this is not possible. This paper offers a defence of the Lichtenbergian position using Peacocke and Campbell's recent exchange on Descartes'scogitoas (...) a framework for discussion. A thought-experiment will be presented involving two communities with radically different conceptions of the metaphysics of the self. The purpose of the thought-experiment is to suggest that a substantive metaphysical thesis, whose truth cannot be a priori known, is presupposed by any justified transition from one's introspective awareness of a certain mental activity to the self-ascription of that activity. (shrink)

Je soutiens dans cette étude que la notion de connaissance de soi introspective est au centre du Cogito de Descartes. À la suite de Hintikka, de nombreux commentateurs, dans la tradition analytique, se sont concentrés sur la justification de l’énoncé « j’existe », en lien avec l’énoncé « je pense », sans chercher à proposer une explication unifiée mettant en évidence la structure de l’argument cartésien ni son lien essentiel avec la connaissance de soi introspective. Par ailleurs, certaines des théories (...) de la connaissance de soi aujourd’hui les plus influentes, en particulier celle de Gareth Evans, se sont développées en réaction à une image supposée « cartésienne » de l’introspection héritée de Gilbert Ryle. Dans ce contexte, l’interprétation du Cogito proposée par Christopher Peacocke pourrait se révéler un jalon essentiel dans l’histoire des lectures de Descartes. Selon Peacocke en effet, on peut défendre résolument le Cogito tout en rejetant l’idée d’un accès privilégié à un monde intérieur. Je soutiens que l’approche rationaliste de Peacocke permet de reconstruire le Cogito d’une façon cohérente et satisfaisante, mais que s’il donne une explication particulièrement convaincante du passage de « je pense » à « j’existe », il échoue à fonder une théorie cartésienne unifiée de la connaissance de soi introspective. (shrink)

In recent debates on phenomenal consciousness, a distinction is sometimes made, after Levine (2001) and Kriegel (2009), between the “qualitative character” of an experience, i.e. the specific way it feels to the subject (e.g. blueish or sweetish or pleasant), and its “subjective character”, i.e. the fact that there is anything at all that it feels like to her. I argue that much discussion of subjective character is affected by a conflation between three different notions. I start by disentangling the three (...) notions in question, under the labels of “for-me-ness”, “me-ness” and “mineness”. Next, I argue that these notions are not equivalent; in particular, there is no conceptual implication from for-me-ness to me-ishness or mineness. Empirical considerations based on clinical cases additionally suggest that the three notions may also correspond to different properties (although the claim of conceptual non-equivalence does not depend on this further point). The aim is clarificatory, cautionary but also critical: I examine four existing arguments from subjective character that are fuelled by an undifferentiated use of the three notions, and find them to be flawed for this reason. (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.” I have argued in previous work that a (...) HOT theorist can adequately respond to this concern with respect to somatoparaphrenia and thought insertion. There is also Cotard syndrome which is a rare neuropsychiatric disorder in which people hold the delusional belief that they are dead, do not exist, or have lost their blood or internal organs. In this paper, I argue that HOT theory has nothing to fear from it either and can consistently account for what happens in such unusual cases. I analyze Cotard syndrome in light of my previous discussion of somatoparaphrenia and thought insertion, and argue that HOT theory can provide a somewhat analogous account without the worry of inconsistency. It is crucial to recognize that there are multiple “self-concepts” and levels of HOTs which can help to provide a more nuanced explanation. With regard to the connection between consciousness and self-consciousness, it is proposed that Cotard patients are indeed capable of having some “I-thoughts” about their bodies and mental states. (shrink)

I am aware of the rain outside, but only in virtue of looking at a weather report. I am aware of my friend, but only because I hear her voice through my phone. Thus, there are some things that I’m aware of, but only indirectly. Many philosophers believe that there are also some things of which I am directly aware. The most plausible candidates are experiences such as pains, tickles, visual sensations, etc. In fact, the philosophical consensus seems to be (...) that experiences are the only plausible candidates for acquaintance. But I will argue that we are also acquainted with ourselves. After outlining what it means to be acquainted with oneself, I will introduce, develop, and defend a commonly used test for acquaintance. Then I will apply this test to us and show that we pass. I will consider various objections to my argument. But ultimately I will conclude that we can be, and often are, acquainted with ourselves. (shrink)

I can be aware of myself, and thereby come to know things about myself, in a variety of different ways. But is there some special way in which I—and only I—can learn about myself? Can I become aware of myself by introspecting? Do I somehow show up in my own conscious experiences? David Hume and most contemporary philosophers say no. They deny that the self shows up in experience. However, in this paper I appeal to research on schizophrenia—on thought insertion, (...) in particular—to argue that Hume and his follows are wrong: The self does, in fact, show up in experience. (shrink)

According to a common philosophical intuition, the deep nature of things is hidden from us, and the world as we know it through perception and science is, just like a dream, shadows, or a computer simulation, somehow shallow and lacking in reality. This “intuition of unreality” clashes with a strong, but perhaps more naive, intuition to the effect that the world as we know it seems perfectly real. Shadows, dreams, or informational structures appear too unreal to be identical to the (...) world as we know it! This clash between the two intuitions forms the basis of the “problem of reality.” In the late nineteenth century psychiatrists encountered patients they referred to as “metaphysician doubters” who constantly questioned the reality of the world. This essay draws on studies of these patients in order to reject, and indeed diagnose, the intuition of unreality and recent metaphysical doctrines drawing on it, such as structuralism, digitalism, and virtual realism. (shrink)

Patients suffering from the Cotard syndrome can deny being alive, having guts, thinking or even existing. They can also complain that the world or time have ceased to exist. In this article, I argue that even though the leading neurocognitive accounts have difficulties meeting that task, we should, and we can, make sense of these bizarre delusions. To that effect, I draw on the close connection between the Cotard syndrome and a more common condition known as depersonalisation. Even though they (...) are not delusional, depersonalised patients seem to have experiences that are quite similar to those of Cotard patients. I argue that these experiences are essentially characterised by a lack of subjective character and of two other structural features of experience, which I call ‘the present character’ and ‘the actual character’. Cotard's nihilistic delusions simply consist in taking these anomalous experiences at face value. (shrink)

In their target article, Kammerer and Frankish (K&F) wonder what forms introspection could take in non-human animals, enhanced humans, artificial intelligences, and aliens. In this short note, I focus on disordered or neurodiverse minds. More specifically, I assess a claim that has often been made more or less implicitly to the effect that, in virtue of their conditions, people with schizophrenia or depersonalization disorder have superior introspective abilities that allow them to discern some important but normally hidden characteristics of our (...) experiences — call this the superintrospectionitis thesis. In the course of my argumentation, I introduce distinctions and questions concerning the nature of the architecture and the function of introspection that might enrich K&F's framework. (shrink)

Basic self-awareness is the kind of self-awareness reflected in our standard use of the first-person. Patients suffering from severe forms of depersonalization often feel reluctant to use the first-person and can even, in delusional cases, avoid it altogether, systematically referring to themselves in the third-person. Even though it has been neglected since then, depersonalization has been extensively studied, more than a century ago, and used as probe for understanding the nature and the causal mechanisms of basic self-awareness. In this paper, (...) I argue that depersonalized patients indeed have an impaired basic self-awareness, and that their study allows us both to favor one specific theory of basic self-awareness and to understand what is wrong with its rivals. According to the favored theory, which I call Cartesian, we are basically self-aware in virtue of being acquainted with ourselves through introspection. (shrink)

Basic self-awareness is the kind of self-awareness reflected in our standard use of the first-person. Patients suffering from severe forms of depersonalization often feel reluctant to use the first-person and can even, in delusional cases, avoid it altogether, systematically referring to themselves in the third-person. Even though it has been neglected since then, depersonalization has been extensively studied, more than a century ago, and used as probe for understanding the nature and the causal mechanisms of basic self-awareness. In this paper, (...) I argue that depersonalized patients indeed have an impaired basic self-awareness, and that their study allows us both to favor one specific theory of basic self-awareness and to understand what is wrong with its rivals. According to the favored theory, which I call Cartesian, we are basically self-aware in virtue of being acquainted with ourselves through introspection. (shrink)

Alienation has been recently revived as a central theme in critical theory. Current debates, however, tend to focus on normative rather than on explanatory issues. In this paper, I confront the latter and advance an account of alienation that bears on the mechanisms that bring it about in order to locate alienation as a distinctive social and psychological fact. In particular, I argue that alienation can be explained as a disruption induced by social factors in the sense of mental ownership (...) that comes with the first personal awareness of being a subject of attitudes, emotions, and actions, and outline how social factors can play a structuring causal role in the process that brings it about. In the first section, I introduce the theme and explain why it is important to focus on the mechanisms that underlie alienation. In the second section, I maintain that understanding how alienation works is crucial to make sense of false consciousness. In the third section, I consider the relevance of mental ownership to explaining alienation and discuss existing evidence about whether and how it can fail. In the final section, I argue that disturbances in the simulation routines that support social cognition might underpin alienation, and outline how social factors might play a structuring causal role in this connection. (shrink)

Debates about bodily ownership and psychological ownership have typically proceeded independently of each other. This paper explores the relation between them, with particular reference to how each is illuminated by psychopathology. I propose a general framework for studying ownership that is applicable both to bodily ownership and psychological ownership. The framework proposes studying ownership by starting with explicit judgments of ownership and then exploring the bases for those judgments. Section 3 discusses John Campbell’s account of ψ-ownership in the light of (...) that general framework, emphasizing in particular his fractionation of ψ-ownership into two dissociable components. Section 4 briefly presents an account of φ-ownership that I have developed in more detail elsewhere. Section 5 explores the suggestion, originating with Alexandre Billon, that there needs to be an integrated account of φ-ownership and ψ-ownership because depersonalization disorders typically involve breakdowns of both φ-ownership and ψ-ownership. The argument from depersonalization is not compelling, but Section 6 proposes a different way of reaching the same conclusion. Section 7 shows how reflecting on agency and practical reasoning offers a common thread between the models of φ-ownership and ψ-ownership discussed earlier in the paper. (shrink)

According to a common philosophical intuition, the deep nature of things is hidden from us, and the world as we know it through perception and science is somehow shallow and lacking in reality. For all we knwo, the intuition goes, we could be living in a cave facing shadows, in a dream or even in a computer simulation, This “intuition of unreality” clashes with a strong, but perhaps more naive, intuition to the effect that the world as we know it (...) seems perfectly real. Shadows, dreams, or informational structures appear too unreal to be identical to the world as we know it! This clash between the two intuitions forms the basis of the "problem of reality." At the turn of the nineteenth century psychiatrists encountered patients they referred to as “metaphysician doubters” who constantly questioned the reality of the world. This essay draws on the study of these patients to reject, and indeed diagnose, the intuition of unreality and recent metaphysical doctrines drawing on it, such as structuralism, digitalism, and virtual realism. (shrink)

Subjectivity is that feature of consciousness whereby there is something it is like for a subject to undergo an experience. One persistent challenge in the study of consciousness is to explain how subjectivity relates to, or arises from, purely physical brain processes. But, in order to address this challenge, it seems we must have a clear explanation of what subjectivity is in the first place. This has proven challenging in its own right. For the nature of subjectivity itself seems to (...) resist straightforward characterization. In this paper, I won't address how subjectivity relates to the physical. Instead, I'll address subjectivity itself. I'll do this by introducing and defending a model of subjectivity based on self-acquaintance. My model does not purport to reduce, eliminate, or naturalize subjectivity, but it does make subjectivity more tractable, less paradoxical, and perhaps less dubious to those averse to obscurity. (shrink)