Popular two-factor accounts of thought insertion hold that this symptom of psychosis is caused by two elements working in tandem: an anomalous experience of some kind (the first factor) and a reasoning deficit or bias (the second factor). This chapter develops a very different alternative to explaining and treating thought insertion—one that views thought insertion as a form persecutory delusion. If this thesis is correct, clinical interventions for persecutory delusions may be successful for (...) class='Hi'>thought insertion as well. The chapter begins by presenting several difficulties for two-factor accounts of thought insertion and for two-factor accounts of delusions more generally. It then discusses positive reasons for seeing thought insertion as a form of persecutory delusion. The positive case begins with reflection on first-person descriptions of thought insertion gleaned from online discussion forums. It continues by considering ways in which clinical diagnostic tools may create the appearance of deep differences between symptoms such as thought insertion and persecutory delusions where there are none. This case is bolstered by evidence for considerable variability in the content of delusions patients present with over time. Implications for the treatment of thought insertion are then considered. (shrink)

On what I will call the No Subject view, there is a sense in which one may be aware of a thought, conceived as an event in one's stream of consciousness, without being aware of oneself thinking something. Philosophical work on the delusion of thought insertion is one of the areas in which the No Subject view has been highly influential: the view has framed what, in the philosophy of mind, has become the standard interpretation of the (...) delusion. Here I want to present a challenge to the No Subject view, developing from reflection on the ontology of thinking. I will also consider how, if the standard interpretation fails, we are to understand thought insertion. In particular, I will suggest that we should question the widespread assumption that understanding the delusion has to be a matter of making sense of it. (shrink)

The standard approach to the core phenomenology of thought insertion characterizes it in terms of a normal sense of thought ownership coupled with an abnormal sense of thought agency. Recently, Fernández (2010) has argued that there are crucial problems with this approach and has proposed instead that what goes wrong fundamentally in such a phenomenology is a sense of thought commitment, characterized in terms of thought endorsement. In this paper, we argue that even though (...) Fernández raises new issues that enrich the topic, his proposal cannot rival the version of the standard approach we shall defend. (shrink)

In contemporary philosophy of mind and psychiatry, schizophrenic thought insertion is often used as a validating or invalidating counterexample in various theories about how we experience ourselves. Recent work has taken cases of thought insertion to provide an invalidating counterexample to the Humean denial of self-experience, arguing that deficiencies of agency in thought insertion suggest that we normally experience ourselves as the agent of our thoughts. In this paper, I argue that appealing to a (...) breakdown in the sense of agency to explain thought insertion is problematic, and that rather than following the prevailing binary approach which holds that certain features of consciousness go missing while others remain wholly intact, a better explanation involves construing thought insertion as a disturbing or disrupting of the subjectivity (for-me-ness) of experience. The result is that experiencing ourselves as the subject of our thoughts is where future research should be directed, given the robust persistence of this form of self-experience across psychopathological and non-psychopathological cases alike. (shrink)

In this paper I aim to illuminate the significance of thought insertion for debates about the first-person concept. My starting point is the often-voiced contention that thought insertion might challenge the thesis that introspection-based self-ascriptions of psychological properties are immune to error through misidentification relative to the first-person concept. In the first part of the paper I explain what a thought insertion-based counterexample to this immunity thesis should be like. I then argue that various (...) thought insertion-involving scenarios do not give rise to successful counterexamples to the immunity of the target class of self-ascriptions. In the second part of the paper I turn to defend a Metasemantic Explanation of why the immunity thesis holds. The Metasemantic Explanation rests on a reference-fixing story about the mental ‘I’ whose key contention is that introspective impressions play an essential role in fixing its reference. It is part of my argument in favour of the proposed reference-fixing story, as well as of the Metasemantic Explanation, that they respect the paradigmatic features of self-ascriptions of inserted thoughts. (shrink)

There are a number of conflicting accounts of thought insertion, the delusion that the thoughts of another are inserted into one’s own mind. These accounts share the common assumption of realism: that the subject of thought insertion has a thought corresponding to the description of her thought insertion episode. I challenge the assumption by arguing for an anti-realist treatment of first-person reports of thought insertion. I then offer an alternative account, simulationism, (...) according to which sufferers merely simulate having a thought inserted into their heads. By rejecting realism, the paper undermines a widespread explanatory framework that unites otherwise competing cognitive models of thought insertion. (shrink)

In this paper, I investigate in detail one theoretical approach to the symptom of thought insertion. This approach suggests that patients are lead to disown certain thoughts they are subjected to because they lack a sense of active participation in the occurrence of those thoughts. I examine one reading of this claim, according to which the patients’ anomalous experiences arise from a breakdown of cognitive mechanisms tracking the production of occurrent thoughts, before sketching an alternative reading, according to (...) which their experiences have to be explained in terms of a withdrawal, on the part of the patients themselves, from certain forms of active engagement in reasoning. I conclude with a discussion of the relationship between this view and the idea that patients’ reports of thought insertion reflect a situation in which the boundaries between the self and the world have become uncertain. (shrink)

Stephens and Graham maintain that in cases of thought insertion, the sense of ownership is preserved, but there is a defect in the sense of agency. However, these theorists overlook the possibility that subjectivity might be preserved despite a defect in the sense of ownership. The claim that schizophrenia centers upon a loss of a sense of ownership is supported by an examination of some of the other notable disownership symptoms of the disorder, such as bodily alienation and (...) experiences of “unworlding.” Is there a way to make sense of the “underlying characteristic modification” that ties together the various symptoms of schizophrenia and disrupts subjects’ “hold” on their own bodies and surroundings? I will argue that what accounts for subjects’ usual sense of ownership are fully embodied processes of causal-contextual information integration, which are made possible by subjects’ affective framing patterns. Attenuated affective framings lead to a loss of a sense of ownership and cause subjects to lose their “grip” on bodily sensations and mental states, which ultimately can result in experiences of thought insertion. I will conclude with some brief remarks about implications for treatment, and point to several body-centered intervention methods that might help to restore subjects’ sense of ownership. (shrink)

I offer an account of thought insertion based on a certain model of self-knowledge. I propose that subjects with thought insertion do not experience being committed to some of their own beliefs. A hypothesis about self-knowledge explains why. According to it, we form beliefs about our own beliefs on the basis of our evidence for them. First, I will argue that this hypothesis explains the fact that we feel committed to those beliefs which we are aware (...) of. Then, I will point to one feature of schizophrenia that suggests that subjects with thought insertion may not be able to know their own beliefs in that way. (shrink)

'Thought insertion' in schizophrenia involves somehow experiencing one's own thoughts as someone else's. Some philosophers try to make sense of this by distinguishing between ownership and agency: one still experiences oneself as the owner of an inserted thought but attributes it to another agency. In this paper, we propose that thought insertion involves experiencing thought contents as alien, rather than episodes of thinking. To make our case, we compare thought insertion to certain (...) experiences of 'verbal hallucination' and show that they amount to different descriptions of the same phenomenon: a quasi-perceptual experience of thought content. We add that the agency/ownership distinction is unhelpful here. What requires explanation is not why a person experiences a type of intentional state without the usual sense of agency, but why she experiences herself as the agent of one type of intentional state rather than another. We conclude by sketching an account of how this might happen. (shrink)

John Campbell (1999) has recently maintained that the phenomenon of thought insertion as it is manifested in schizophrenic patients should be described as a case in which the subject is introspectively aware of a certain thought and yet she is wrong in identifying whose thought it is. Hence, according to Campbell, the phenomenon of thought insertion might be taken as a counterexample to the view that introspection-based mental selfascriptions are logically immune to error through (...) misidentification (IEM, hereafter). Thus, if Campbell is right, it would not be true that when the subject makes a mental self-ascription on the basis of introspective awareness of a given mental state, there is no possible world in which she could be wrong as to whether it is really she who has that mental state. Notice the interesting interdisciplinary implications of Campbell’s project: on the one hand, a fairly precise notion elaborated in philosophy such as IEM (and the related notion of error through misidentification, EM hereafter) is used to describe a characteristic symptom of schizophrenia.1 On the other hand, such a phenomenon, described in the way proposed, is taken to be a possible counterexample to a sort of “philosophical dogma” such as IEM of introspection-based non-inferential mental self-ascriptions. In the first section of the paper I will point out the characteristic features of EM and explain logical immunity to error through misidentification of introspection-based mental self-ascriptions; in the second section I will consider the case of thought insertion in more detail and show why, after all, it is not a counterexample to the view that introspectionbased mental self-ascriptions are logically IEM. Finally, I will offer a re-description of the phenomenon of thought insertion. (shrink)

This chapter argues that recent attempts to make sense of the delusion of thought insertion in terms of a distinction between two notions of thought ownership have been unsuccessful. It also proposes an alternative account, in which the delusion is to be interpreted in the light of its prehistory.

In her account of thought insertion, Pedrini follows the prevailing view that it is an error about ‘who is thinking a thought.’ This view is based on a particular characterization of thinking as analogous to physical actions, where an object can be made, possessed, moved about, and put in and out of containers. This picture is well-suited for explaining thought insertion where the speaker talks of having the thoughts of others put into his mind. The (...) question, ‘Who is thinking?’ can then be answered in at least two ways, as the person who has or possesses the thought, or the person who produces it. This leads into discussions about agency and its criteria. This move is understandable as part of a... (shrink)

We argue that thought insertion primarily involves a disruption of the sense of ownership for thoughts and that the lack of a sense of agency is but a consequence of this disruption. We defend the hypothesis that this disruption of the sense of ownership stems from a fail- ure in the online integration of the contextual information related to a thought, in partic- ular contextual information concerning the different causal factors that may be implicated in their production. (...) Loss of unity of consciousness, manifested by incoherent subjective experiences is a general phenomenal characteristic of schizophrenia. This loss of coherence has been hypothesized to reflect a generalized deficit of contextual information integration not conveyed by, but related to, a target event. This deficit is manifested across many cog- nitive domains. We argue that it is also manifested in the process of thinking itself, result- ing in causally decontextualized thoughts that are experienced as inserted thoughts. (shrink)

This paper contributes to the debate in the philosophy of psychiatry regarding the relation between thought insertion in schizophrenia and the sense of selfhood. Some scholars have suggested that thought insertion presents a case where the sense of selfhood is lacking. Other scholars have disputed this by proposing that a form of minimal selfhood is a necessary feature of consciousness that is still present in thought insertion, albeit in a disturbed manner. Herein, I argue (...) that the notion of minimal selfhood that is used by these scholars is ambiguous between two meanings. The first is an ontological notion concerning the first-person individuation of consciousness. The second is a phenomenological notion concerning how a conscious experience is experienced as being given to the first-person subject. I argue that the former ontological notion is indeed a necessary feature of conscious experience, but the latter phenomenological notion is only a contingent feature. Therefore, even if it is possible that thought insertion presents a case where the feeling of first-person givenness is lacking or disturbed, the first-person individuation of consciousness remains present and undisturbed. As well as further clarifying the connection between consciousness and selfhood, this philosophical analysis reveals the extent to which schizophrenia can and cannot be said to comprise a disorder of selfhood. (shrink)

By examining first-person descriptions of thought insertion I show that thought insertion is a complex and heterogeneous phenomenon. People experiencing this phenomenon have huge difficulty explaining what it is like due to the bizarre nature of the experience. Through careful analysis of first-person descriptions I identify some of the characteristics of thought insertion. I then briefly examine some of the philosophical literature regarding agency, ownership and thought insertion and conclude that the standard (...) account of the basic characteristics of thought insertion is inadequate when we consider the phenomenon as it is experienced. First person descriptions suggest that thought insertion is characterised by a lack of personal ownership and not simply by a loss of agency or authorship. This is an important factor that should inform research and therapeutic intervention. We cannot hope to arrive at appropriate therapeutic intervention or identify underlying neuronal mechanisms for the experience if we cannot say what the experience actually is. I further suggest that more analysis of first-person description is required for an improved account of the phenomenology of thought insertion. (shrink)

Introduction. Whatever its underlying causes, even the description of the phenomenon of thought insertion, of the content of the delusion, presents difficulty. It may seem that the best hope of a description comes from a broadly cognitivist approach to the mind which construes content-laden mental states as internal mental representations within what is literally an inner space: the space of the brain or nervous system. Such an approach objectifies thoughts in a way which might seem to hold out (...) the prospect of describing the ''alienated'' relation to one's own thoughts that seems to be present in thought insertion.1 Method. Firstly, I examine the general structure of cognitivist accounts of intentional or content-laden mental states. I raise the general difficulty of explaining how free-standing, and thus world-independent, inner states can still have bearing on the outer world. Secondly, I briefly examine Frith's model for explaining thought insertion and other passivity phenomena by postulating a failure of an internal monitoring mechanism of inner states. I question what account can be given of non-pathological cases and raise two specific objects. Results. Cognitivist accounts of the mind face a general, and possibly insuperable, challenge: explaining the intentionality of mental states in non-intentional, non- question-begging terms. There have so far been no satisfactory solutions. Cognitivist accounts of passivity phenomena in terms of a failure of internal monitoring face two objections. Firstly, accounting for non-pathological cases generates an infinite regress. Secondly, no account can be given of the paradoxical nature of utterances of the form of Moore's paradox: ''it is raining but I do not believe it''. Conclusions. A cognitivist approach presents an alienated account of thought in normal, non-pathological cases and is no help in accounting for thought insertion. (shrink)

The essay examines the impact of thought insertion on typical conceptions of self-consciousness. Stephens and Graham have recently argued that thought insertion is compatible with the inseparability thesis, which maintains that with regard to self-consciousness subjectivity is a proper part of introspection--introspection and subjectivity are inseparable. They argue that thought insertion is an error of agency and not an error of subjectivity. The essay contends that even if they are correct in their interpretation that (...) thought insertion is an error of agency rather than subjectivity, which is unlikely, they are incorrect to maintain that it is not also an error of subjectivity. Evidence is put forth to indicate that thought insertion is, at best, a mistake of agency and subjectivity. It is concluded that thought insertion is incompatible with the inseparability thesis, and a new inseparability thesis is thereby postulated. (shrink)

This essay presents a new account of thought insertion. Prevailing views in both philosophy and cognitive science tend to characterize the experience of thought insertion as missing or lacking some element, such as a ‘sense of agency’, found in ordinary first-person awareness of one's own thoughts. By contrast, I propose that, rather than lacking something, experiences of thought insertion have an additional feature not present in ordinary conscious experiences of one's own thoughts. More specifically, (...) I claim that the structure of an experience of thought insertion consists of two distinct elements: a state of ordinary first-person awareness and a sense that this state of awareness is highly unusual. In addition to modeling the experience of thought insertion, I also explain how a delusional pattern of thinking could lead someone who has this kind of experience to adopt a belief that some other entity is inserting thoughts into her mind. Finally, I briefly sketch a neurocomputational framework that could be developed to explain the sense that one's state of first-person awareness is highly irregular. (shrink)

(2013). Does consciousness entail subjectivity? The puzzle of thought insertion. Philosophical Psychology: Vol. 26, No. 2, pp. 291-314. doi: 10.1080/09515089.2011.625117.

Abstract: How it is that one's own thoughts can seem to be someone else's? After noting some common missteps of other approaches to this puzzle, I develop a novel cognitive solution, drawing on and critiquing theories that understand inserted thoughts and auditory verbal hallucinations in schizophrenia as stemming from mismatches between predicted and actual sensory feedback. Considerable attention is paid to forging links between the first-person phenomenology of thought insertion and the posits (e.g. efference copy, corollary discharge) of (...) current cognitive theories. I show how deficits in the subconscious mechanisms regulating inner speech may lead to a 'fractured phenomenology' responsible for schizophrenic patients' reports of inserted thoughts and auditory verbal hallucinations. Supporting work on virtual environments is discussed, and lessons concerning the fixity of delusional belief are drawn. (shrink)

Recently, many philosophers and psychologists have claimed that the explanation that grounds both passivity phenomena in the cognitive domain and passivity phenomena that occur with respect to overt actions is, along broad lines, the same. Furthermore, they claim that the best account we have of such phenomena in both scenarios is the “comparator” account. However, there are reasons to doubt whether the comparator model can be exported from the realm of overt actions to the cognitive domain in general. There is (...) a lingering worry concerning such explanations of thought insertion: the "What is compared to what?" problem. Here I examine two ways to tackle this problem. First: thought insertion consists of the misattribution of strings of inner speech which are not attenuated (thought insertion is thus another name for auditory verbal hallucinations). Second: thought insertion is misattributed inner speech which exhibits the same phenomenological characteristics as normal inner speech. After explaining the types of problem that each of these potential solutions faces, I conclude with a set of open questions that the comparator theorist has to tackle. (shrink)

Subjects experiencing thought insertion disown thoughts they are introspectively aware of. According to what I call “the rationality hypothesis”, thought-insertion reports are not merely intelligible, but also express, or potentially express, fully rational judgments in the light of highly disruptive experience. I argue that the hypothesis is ethically and theoretically motivated, and provides two insights into the philosophical significance of reports by subjects with schizophrenia. First, the reports can be seen as evidence that rational judgments of (...) ownership of a thought prioritize agency awareness over introspective awareness of it. This point fits with an integrative account of thought insertion at the personal and mechanistic levels. Second, rational and competent uses of the first person purely based on introspection do not necessarily involve a full-fledged first-person perspective over one’s thoughts. This suggests that agency awareness, and not introspection as such, is primarily involved in determining the reference of the first person featuring in the judgments. (shrink)

A group of philosophers suggests that a sense of mineness intrinsically contained in the phenomenal structure of all conscious experiences is a necessary condition for a subject to become aware of himself as the subject of his experiences i.e. self-awareness. On this view, consciousness necessarily entails phenomenal self-awareness. This paper argues that cases of delusions of thought insertion undermine this claim and that such a phenomenal feature plays little role in accounting for the most minimal type of self-awareness (...) entailed by phenomenal consciousness. First, I clarify the main view endorsing this claim i.e. the Self-Presentational View of Consciousness and formulate the challenge from thought insertion. After, I offer a systematic evaluation of all the strategies used by the advocates of this view to deal with this challenge. Finally, I conclude that most of these strategies are unsatisfactory for they rest in unwarranted premises, imprecisions about the agentive nature of cognitive experiences, and especially, lack of distinction between the different ways in which subjects can become aware of their own thoughts. (shrink)

This article examines the phenomenon of thought insertion, one of the most extreme disruptions to the standard mechanisms for self-knowledge, in the context of Kant's philosophy of mind. This juxtaposition is of interest for two reasons, aside from Kant's foundational significance for any modern work on the self. First, thought insertion presents a challenge to Kant's approach. For example, the first Critique famously held that " The 'I think' must be able to accompany all my representations (...) " (Kant, KrV, B132). Yet thought insertion raises the problem of representations which are 'mine' by many natural criteria, and yet which I am unwilling to self-ascribe. Ultimately, my argument will be that thought insertion simultaneously problematises, and yet to some degree also vindicates, the complex distinctions between activity and passivity which underlie Kant's system. Second, I argue that Kant's position contains resources that allow us to model thought insertion, and its broader implications for self-knowledge, in an interesting and distinctive manner. Kant himself held an extreme view of philosophy's competence in the study of mental disorder: in the Anthropology, he suggests that courts must refer such cases to philosophers, rather than medics (Kant, Anth, p.214). My aim is much more modest: to suggest that a Kantian treatment of thought insertion deserves consideration by both philosophers and clinicians. (shrink)

In thought insertion, subjects experience thoughts which they claim not to be their own. What they claim, it is typically said, is that the thought is not theirs in the sense that they are not the agent or author of the thought. But what does it mean to be the agent or author of a thought? The most intuitive idea is that for a thought to be one's own means for the thought to (...) causally originate within the subject. I defend this analysis against rivaling accounts and discuss several challenges that have not been recognized so far. (shrink)

Patients suffering from delusions of thought insertion (TI) report that external agents of different nature have placed thoughts into their minds. The symptom involves distressing feelings of intromission and exposition, loss of mental privacy, diminished ego boundaries, and a – often neglected – peculiar “physicality”. A dominant approach within cognitive sciences characterizes TI as involving alterations in the experience of being the author of certain thoughts. For the advocates of this so-called Standard Approach to TI, the absence of (...) a sense of agency for certain thoughts would lead to their externalization, this explaining the general structure of the clinical reports. In this paper, I problematize the phenomenological picture of everyday thoughts that the standard approach adopts when trying to make sense of TI. I claim that the standard approach neglects two more fundamental aspects of TI, namely the multimodal nature of thinking in psychosis and the deeply social dimension of the phenomenology of delusions in schizophrenia. After this, a broader descriptive phenomenological characterization of TI is provided. Finally, I establish some connections between the characterization of TI developed here and current research in social perception and clinical practice. (shrink)

This book presents engaging and informative analysis of three interrelated notions, namely: selfhood, the first person pronoun ‘I’ and the first person perspective. Philosophers have long debated about these notions on non-empirical grounds often focusing on the question of whether the first person pronoun ‘I’, beyond its role as a grammatical term, has an underlying implication for the ontology of selfhood. Philosophers continuously grapple with whether the first person pronoun ‘I’ is a referring expression and if it is, what its (...) referent is or could be. To give an adequate treatment of such questions, philosophers have begun working across the relevant disciplines. This book highlights some excellent examples of the complex nature of the first person thoughts as they figure in linguistics, autism, thought insertion in schizophrenia and the phenomenon of mental autonomy. In Selfhood, Autism and Thought Insertion, many of the leading philosophers working on this issue, as well as a few emerging scholars, have written 12 new essays addressing questions besetting the ontology of selfhood. The essays address topics as diverse as reflections on E. J. Lowe’s non-Cartesian substance dualism, physical determinism, the metaphysics and anti-metaphysics of the self, animalism, neo-Lockean persons, rationality and the first-person, whether the first person is essentially a linguistic concept, first-person and third-person perspectives and autism, consciousness, first person perspective and neuroimaging, thought insertion and mental autonomy. The contributors to this volume do not agree in all of the details associated with the notion of selfhood, yet they all have a common conviction that the central questions besetting it must be taken seriously. (shrink)

Philosophers are interested in the phenomenon of thought insertion because it challenges the common assumption that one can ascribe to oneself the thoughts that one can access first-personally. In the standard philosophical analysis of thought insertion, the subject owns the ‘inserted’ thought but lacks a sense of agency towards it. In this paper we want to provide an alternative analysis of the condition, according to which subjects typically lack both ownership and authorship of the ‘inserted’ (...) thoughts. We argue that by appealing to a failure of ownership and authorship we can describe more accurately the phenomenology of thought insertion, and distinguish it from that of non-delusional beliefs that have not been deliberated about, and of other delusions of passivity. We can also start developing a more psychologically realistic account of the relation between intentionality, rationality and self knowledge in normal and abnormal cognition. (shrink)

Experiences of thought-insertion are a first-rank, diagnostically central symptom of schizophrenia. Schizophrenic patients who undergo such delusional mental states report being first-personally aware of an occurrent conscious thought which is not theirs, but which belongs to an external cognitive agent. Patients seem to be right about what they are thinking but mistaken about who is doing the thinking. It is notoriously difficult to make sense of such delusions. One general approach to explaining the etiology of monothematic delusions (...) has come to be known as the endorsement model. This model claims that the patient holds her delusional belief because she simply trusts her bizarre experience and takes it at face value. The content of the bizarre experience thus plays a central role in the etiology of delusions. Despite being widely discussed with respect to delusions like Capgras and Cotard, an endorsement model of thought-insertion has not yet been formulated. This article seeks to fill this void by fleshing out and defending the endorsement approach to delusions of inserted thoughts. It aims to show that such an approach can be defended against objections that have been raised in the literature. In particular, it will be argued that there is nothing wrong with the idea of being first-personally aware of a thought which is presented in consciousness as being someone else's. The upshot is that with respect to delusions of thought-insertion, the endorsement model turns out to be a viable account of why patients come to believe that someone else is inserting thoughts into their minds. (shrink)

In the original publication of the article, the funding information was inadvertently missed out. The information is provided in this Correction.

In their article “Out of nowhere: thought insertion, ownership and context-integration”, Jean-Remy Martin & Elisabeth Pacherie criticize the standard approach to thought insertion. However, their criticism is based on a misunderstanding of what the standard approach actually claims. By clarifying the notions ‘sense of ownership’ and ‘sense of agency’, I show that Martin & Pacherie’s own approach can be construed as a refined version of the standard approach.

This article addresses questions about the sense of agency and its distinction from the sense of ownership in the context of understanding schizophrenic thought insertion. In contrast to “standard” approaches that identify problems with the sense of agency as central to thought insertion, two recent proposals argue that it is more correct to think that the problem concerns the subject’s sense of ownership. This view involves a “more demanding” concept of the sense of ownership that, I (...) will argue, ultimately depends on the sense of agency. In this regard, the sense of agency still appears to be the originating problem. (shrink)

Thought insertion is a condition characterized by the impression that one's thoughts are not one’s own and have been inserted by others. Some have explained the condition as resulting, in part, from impaired or defective self-knowledge, or knowledge of one’s mental states. I argue that such models do not shed light on the most puzzling feature of thought insertion: the patient’s experience that an introspected thought does not feel like her own. After examining ways in (...) which existing versions of the model might address this worry, I propose a significant modification. I argue that the experience of disownership consists in a rational indifference that one feels towards one’s inserted thought. I further contend that the experience is generated by an underlying absence of an expectation of rational authority towards the inserted thought, such that the patient does not expect her thought to reflect, or be shaped by, her own rational considerations. I defend my proposal using empirical studies from cognitive and social psychology which suggest that we ordinarily have and experience an expectation of rational authority towards a certain subset of our thoughts, and direct analysis of patient reports, which strongly suggest that it is this expectation and the corresponding experience that thought insertion patients lack. (shrink)

Theories of thought insertion have tended to favour either the content of the putatively alien thought or some peculiarity within the experience itself as a means of explaining why the subject differentiates one thought from another in terms of personal ownership. There are even accounts that try to incorporate both of these characteristics. What all of these explanations share is the view that it is unexceptional for us to experience thought as our own. The aim (...) of this paper is to consider the means by which this awareness of the myness of thought occurs. Why is it that I, as the subject of thought, typically experience a thought as mine? Using research which investigates the development of a child’s awareness of the act of thinking, I will evaluate leading explanations of thought insertion. It is my contention that by understanding the means by which the awareness of one’s ownership of thought develops, we can better assess explanations of thought insertion; and whilst, at present, no theory is fully able to explain the condition, the incorporation of developmental research suggest that we should favour one in particular. (shrink)

Despite the diagnostic relevance of thought insertion for disorders such as schizophrenia, the debates about its aetiology are far from resolved. This paper claims that in paying exclusive attention to the perceptual and cognitive impairments leading to delusional experiences in general, current deficit approaches overlook the role that affective disturbances might play in giving rise to cases of thought insertion. In the context of psychosis, affective impairments are often characterized as a consequence of the stress and (...) anxiety caused by delusional episodes. However, here I explore some of the conceptual and empirical reasons to think that affective problems might in fact play a crucial doxastic role in the aetiology of thought insertion. Finally, I conclude by proposing a way of integrating the main insights of my analysis with the current ‘two-factor’ deficit approach to thought insertion and I explore the potential adaptive role that some delusions might have within this framework. (shrink)

According to the principle known as “the principle of present-tense ascription immunity”, “It is impossible for anyone to have or entertain thoughts without being aware—immediately and self-evidently—that he is thinking that thought”. In other words, my thoughts are fundamentally experienced as mine, and I typically have this experience of mineness immediately, that is, without any inference based on evidence about who is the thinker of the thought. Thought insertion reveals instead that, under particular pathological conditions, people (...) can be startlingly in error about who is thinking a thought. How can this happen? In the attempt to specify how the capacity for self-ascription of a thought can.. (shrink)

A neuropsychological perspective on auditory verbal hallucinations links key phenomenological features of the experience, such as voice location and identity, to functionally separable pathways in normal human audition. Although this auditory processing stream framework has proven valuable for integrating research on phenomenology with cognitive and neural accounts of hallucinatory experiences, it has not yet been applied to other symptoms presumed to be closely related to AVH – such as thought insertion. In this paper, I propose that an APS (...) framework offers a useful way of thinking about the experience of TI as well as AVH, providing a common conceptual framework for both. I argue that previous self-monitoring theories struggle to account for both the differences and similarities in the characteristic features of AVH and TI, which can be readily accommodated within an APS framework. Furthermore, the APS framework can be integrated with predictive processing accounts of psychotic symptoms; makes predictions about potential sites of prediction error signals; and may offer a template for understanding a range of other symptoms beyond AVH and TI. (shrink)

Patients with psychotic disorders experience a range of reality distortions. These often include auditory-verbal hallucinations, and thought insertion to a lesser degree; however, their mechanisms and relationships between each other remain largely elusive. Here we attempt to establish a integrative model drawing from the phenomenology of both AVHs and TI and argue that they in fact can be seen as ‘spectra’ of experiences with varying degrees of agency and ownership, with ‘silent and internal own thoughts’ on one extreme (...) and ‘fully external and clearly audible voices’ in the absence of a speaker on the other. We believe a spectral model will add emphasis to the continuity of experience and help to better understand how one type of psychotic symptom may interact with another, and put forward the argument that the experience of TI itself is not sufficient to classify as a delusion. In addition we aim to discuss some of the conceptual issues surrounding AVHs and TI with first-person accounts and current philosophical and neuropsychological theories in mind. We propose that the mechanisms behind AVHs and TI are more complex than source-monitoring deficits; indeed, to understand such phenomena one must appreciate that their very ‘existence’ and ‘reality’ as experienced by the individual have much deeper implications and meaning, both philosophically and clinically. (shrink)

This paper explores the phenomenon of thought insertion, an experience reported by some schizophrenics where it is believed that other persons or forces are inserting thoughts into their minds. This relatively circumscribed symptom of schizophrenia raises difficult questions concerning our sense of agency for our thoughts. How is it possible that persons can think that their thoughts are not their own? Gallagher, drawing on Husserl’s early work on timeconsciousness, provides a subtle and sophisticated answer to this problem, suggesting (...) that protention may underlie our sense of agency for thinking and that the experience of inserted thoughts may occur in the event of an intermittent failure in this protentional function. More recent Husserl scholarship suggests, however, that this account may face problems on phenomenological grounds. It is argued here that our sense of agency for thinking requires more than protention, and, consequently, that the absence of protention cannot fully explain the loss of agency for thinking characterizing the experience of thought insertion. In order to contextualize this discussion of the phenomenon theoretically and, in the process, to provide an introduction to the difficulties in explaining it, this paper proceeds with a consideration of Frith’s early cognitive account of thought insertion and the contribution of Stephens and Graham in this regard. In conclusion, it is argued that, despite the merits of all three accounts presented, they remain unable to account for the phenomenon of inserted thoughts, and that we might more fruitfully understand this experience as bein a type of uncontrollable passive or autochthonous thinking. Indo-Pacific Journal of Phenomenology , Volume 6, Edition 2 August 2006. (shrink)

In his paper, Young has eloquently put forward a novel account of how and why the phenomenon of thought-insertion seen in patients with schizophrenia does not contradict the immunity principle. He argues that, in TI, the problem lies not in misidentification but in mispredication: the individual with TI does not ascribe the right predicate to the wrong subject, but has misdetected the predicate in the first place. The author points out that an inconsistently formulated immunity principle could risk (...) confusing the two types of errors. The author defines the immunity principle as: Any agent... (shrink)