Year:

  1.  9
    Agency-First Epistemology of Psychedelics.Lisa Bortolotti & Kathleen Murphy-Hollies - 2022 - Philosophy and the Mind Sciences 3.
    Letheby’s book is an engaging and crystal-clear exploration of the philosophical issues raised by the use of psychedelic drugs. In this paper, we focus on the epistemological issues Letheby examines in chapter 8 and argue that his analysis requires an agency-first approach to epistemic evaluation. On an agency-first approach, epistemic evaluation is about identifying the skills agents needs to acquire in order to pursue and fulfil their epistemic goals.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  2.  2
    Belief Now, True Belief Later.Chiara Caporuscio - 2022 - Philosophy and the Mind Sciences 3.
    Chris Letheby’s defence of psychedelic therapy hinges on the premise that psychedelic-facilitated insights about the self are in a better epistemic position than those about the external world. In this commentary, I argue that such a claim is not sufficiently defended. More precisely, I argue that one element is underexplored in Letheby’s otherwise compelling picture: namely, that unlike new beliefs about the external world, beliefs about oneself have the capacity to turn into self-fulfilling prophecies. Recognising the psychedelic experience and the (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  3.  4
    Book Symposium: Philosophy of Psychedelics.Chiara Caporuscio & Sascha Benjamin Fink - 2022 - Philosophy and the Mind Sciences 3.
    This special issue focuses on the Philosophy of Psychedelics by Chris Letheby in the form of a book symposium. Introduced by Matthew Johnson, Letheby presents the main claims of this book that explores the apparent conflict between psychedelic therapy and naturalism in a préci​s.​​ Seven contributions criticize, expand or comment on Letheby's arguments, focusing either on his proposed mechanism for psychedelic therapy or on the epistemic implications. The symposium concludes with Letheby’s replies to these commentaries.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  4.  5
    Serotonin, Predictive Processing and Psychedelics.Matteo Colombo - 2022 - Philosophy and the Mind Sciences 3.
    Letheby’s "Philosophy of Psychedelics" relies on Predictive Processing to try and find unifying explanations relevant to understanding how serotonergic psychedelics work in psychiatric therapy, what subjective experiences are associated with their use and whether such experiences are epistemically defective. But if Predictive Processing lacks genuinely explanatory unifying power, Letheby’s account of psychedelic therapy risks being unwarranted. In this commentary, I motivate this worry and sketch an alternative interpretation of psychedelic therapy within the Reinforcement Learning framework.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  5.  7
    Laying Down a Forking Path: Tensions Between Enaction and the Free Energy Principle.Ezequiel Di Paolo, Evan Thompson & Randall Beer - 2022 - Philosophy and the Mind Sciences 3.
    Several authors have made claims about the compatibility between the Free Energy Principle and theories of autopoiesis and enaction. Many see these theories as natural partners or as making similar statements about the nature of biological and cognitive systems. We critically examine these claims and identify a series of misreadings and misinterpretations of key enactive concepts. In particular, we notice a tendency to disregard the operational definition of autopoiesis and the distinction between a system’s structure and its organization. Other misreadings (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   3 citations  
  6.  7
    Psychedelics Favour Understanding Rather Than Knowledge.Sascha Benjamin Fink - 2022 - Philosophy and the Mind Sciences 3.
    Chris Letheby argues in Philosophy of Psychedelics that psychedelics and knowledge are compatible. Psychedelics may cause new mental states, some of which can be states of knowledge. But the influence of psychedelics is largely psychological, and not all psychological processes are epistemic. So I want to build on the distinction between processes of discovery and processes of justification to criticise some aspects of Letheby’s epistemology of psychedelics. Unarguably, psychedelics can elicit processes of discovery. Yet, I hold, they can hardly contribute (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  7.  3
    Positive Affect and Letheby's Naturalization of Psychedelic Therapy.Sarah Hoffman - 2022 - Philosophy and the Mind Sciences 3.
    Letheby’s naturalistic theory of psychedelic therapy argues that the therapeutic power of psychedelics lies in their ability to allow individuals “to discover the contingency, mutability and simulatory nature of their own sense of identity and habitual modes of attention.” The general shape of this project is persuasive; it is hard to see how the claim that successful therapy must involve changes to the self could be objected to, and Letheby sketches a consistent, if speculative, picture of psychedelic experience. But the (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  8.  5
    Introduction: Psychedelic Science Needs Philosophy.Matthew Johnson - 2022 - Philosophy and the Mind Sciences 3.
    I highly recommend Philosophy of Psychedelics by Chris Letheby to both the public and academics who want to dig deeper into the modern therapeutic science of psychedelics. In this piece, I will draw attention to key topics covered in the book that I judge as particularly compelling and likely to influence psychedelic therapy and our understanding of it going forward. Clearly, the importance of philosophy in the modern psychedelic therapy renaissance will increase, and Letheby’s Philosophy of Psychedelics will hold a (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  9.  5
    Self and Knowledge in Psychedelic Therapy.Chris Letheby - 2022 - Philosophy and the Mind Sciences 3.
    Much of my book Philosophy of Psychedelics is devoted to elaborating and defending two basic claims: that psychedelic therapy works mainly by changing mental representations of the self, and that it has many epistemic benefits consistent with a naturalistic worldview. The commentaries in this symposium generally focus on one or the other of these claims. On the mechanistic front, the commentaries by Hoffman and by Martin and Sterzer seek to supplement my account by drawing attention to factors it does not (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  10.  3
    Vicarious Attention, Degrees of Enhancement, and the Contents of Consciousness.Azenet Lopez - 2022 - Philosophy and the Mind Sciences 3.
    How are attention and consciousness related? Can we learn what the contents of someone’s consciousness are if we know the targets of their attention? What can we learn about the contents of consciousness if we know the targets of attention? Although introspection might suggest that attention and consciousness are intimately connected, a good body of recent findings in cognitive psychology and cognitive neuroscience brings compelling reasons to believe that they are two separate and independent processes. This paper attempts to bring (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  11.  4
    Stepping Through the Psychedelic Looking-Glass.Aidan Lyon & Anya Farennikova - 2022 - Philosophy and the Mind Sciences 3.
    What makes psychedelic psychotherapy work? Is it the induction of psychedelic experience, with its distinct patterns of hallucinations and insights, or is it the neural ‘shakeup’ that moves the brain out of its regular mode of functioning and into a more disordered state? We consider the role that attention-related phenomenological changes play in psychedelic transformation and psychotherapy. We review Letheby’s account of psychedelic psychotherapy, which appeals to increases in phenomenal opacity as the central mechanism of psychotherapeutic transformation. We argue that (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  12.  1
    How Level is the 'Cognitive Playing Field'?Joshua M. Martin & Philipp Sterzer - 2022 - Philosophy and the Mind Sciences 3.
    In Philosophy of Psychedelics, Letheby provides a convincing basis for the idea that psychedelics primarily derive their therapeutic potential through mediating favourable changes to self-related belief systems. In this commentary, we take a closer look at the role that contextual factors play in Letheby’s two-factor account of psychedelic therapy. While Letheby acknowledges that psychedelic effects are highly context-dependent, the exact role that context plays in self-modelling during the acute experience is not entirely clear. We argue that context plays an essential (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  13.  3
    In Search of Lost Time: Integrated Information Theory Needs Constraints From Temporal Phenomenology.Ishan Singhal, Ramya Mudumba & Narayanan Srinivasan - 2022 - Philosophy and the Mind Sciences 3.
    Integrated information theory of consciousness proposes an identity between its causal structure and phenomenology. Through this assertion, IIT aims to explain consciousness by prioritizing first-person experience. However, despite its phenomenology-first stance, developments in IIT have overlooked temporality. As such, we argue that at present IIT’s phenomenological analysis is incomplete. In this critique, we show how IIT takes a non-identical illusionist stance towards the experiences of continuity, flow, and extent of our experiences. Moreover, in isolating temporal grains of experience to a (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  14. Naturalistic Entheogenics.Chris Letheby - 2022 - Philosophy and the Mind Sciences 3.
    In this précis I summarise the main ideas of my book Philosophy of Psychedelics. The book discusses philosophical issues arising from the therapeutic use of “classic” psychedelic drugs such as psilocybin and LSD. The book is organised around what I call the Comforting Delusion Objection to psychedelic therapy: the concern that this novel and promising treatment relies essentially on the induction of non-naturalistic metaphysical beliefs, rendering it epistemically objectionable. I begin the précis by summarizing material from chapters two and three (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
 Previous issues
  
Next issues