Imperfect Cognitions

Today's post is by Paweł Gładziejewski  (Nicolaus Copernicus University) on his recent paper, " From Altered States to Metaphysics: The Epistemic Status of Psychedelic-induced Metaphysical Beliefs "  ( Review of Philosophy and Psychology , 2023).  Paweł Gładziejewski  Psychedelic experiences sometimes lead people to revise their belief systems in far-reaching ways. My paper deals with the epistemic status of a particular class of beliefs that people sometimes acquire after a psychedelic session. These are the metaphysical beliefs about the fundamental nature of reality itself. Imagine someone in a deep psychedelic state, where their usual sense of self dissolves into an all-encompassing unity lacking an subject-object distinction. Chances are that the experience will inspire this person to modify her beliefs about the existence of God or the relation between consciousness and the physical world. Is updating metaphysical beliefs in this manner epistemically irrational...

In today's post I report on the Summer School in Reichenau   which I had the pleasure to attend on 25th and 26th August 2023. The theme was Belief, meaning, knowledge: how we deal with uncertainty . Delusions was a topic often discussed in the presentations, from philosophical, phenomenological, and clinical perspectives. Organisers of the event were Johannes Rusch, Daniel Nischk, Dorothea Debus, and Thomas Müller. Rathaus Reichenau (front) Rathaus Reichenau (courtyard) The first speaker was Rico Gutschmidt (Konstanz) with a presentation on Mysticism and Delusions . Fundamental uncertainties are limitations of knowledge and experience and three questions arise: (1) Where do we come from? (2) Why there is anything at all rather than nothing? (3) Who are we? Although such questions are not easy to answer or possible to answer they can evoke transformative experiences. Philosophical experiences such as struggling with these questions can be transformative because they change the type...

Today's post is by Chris Letheby (Western Australia/Adelaide) on his new book Philosophy of Psychedelics (OUP 2021). We are in the midst of a psychedelic renaissance. “Classic” psychedelic drugs such as LSD and psilocybin are the objects of renewed scientific interest. Despite the chequered reputation of these substances, recent clinical trials have shown that psychedelics can be administered safely in controlled conditions, and may have a role in the treatment of various psychological maladies. There is even talk of a “new paradigm” in psychiatric treatment.  But psychedelic-assisted psychotherapy (“psychedelic therapy”) has several unusual features that distinguish it from standard psychiatric treatments and raise intriguing questions. In my book Philosophy of Psychedelics (OUP 2021) I tackle some of these questions. The most striking feature of psychedelic therapy is that it involves the induction of a dramatically altered state of consciousness. Patients with anxiety, depr...

This post is by Marc Wittmann , Research Fellow at the Institute of Frontier Areas of Psychology and Mental Health in Freiburg, Germany. Here, he writes about his new book on altered states of consciousness. Subjective time emerges through the existence of the self across time as an enduring and embodied entity. This is clearly revealed in everyday states of consciousness such as transiently being in states of boredom or flow. An increased awareness of the self is associated with an increased awareness of time when we are bored. In contrast, we lose track of time and the self when fully immersed in challenging activities accompanied by the feeling of enjoyment – experienced in the state of flow. The relation between self-awareness and time is even more prominently disclosed in anecdotal reports and empirical studies on altered states of consciousness such as in meditative states, in music-induced trance, and after ingestion of psychedelic substances. In peak states the exper...

This post is by Chris Letheby . In recent decades there has been a growing interdisciplinary attempt to understand self-awareness by integrating empirical results from neuroscience and psychiatry with philosophical theorizing. This is exemplified by the enterprise known as ‘philosophical psychopathology’, in which observations about unusual cognitive conditions are used to infer conclusions about the functioning of the healthy mind. But this line of research has been somewhat limited by the fact that pathological alterations to self-awareness are unpredictable and can only be studied retrospectively—until now. The recent resurgence of scientific interest in ‘classic’, serotonergic psychedelic drugs such as LSD and psilocybin has changed all this. Using more rigorous methods than some of their forebears, psychiatrists have shown that psychedelics can, after all, be given safely in clinical contexts, and may even cause lasting psychological benefits. Small studies have shown ...

This post is by Michiel van Elk who works in the Religion, Cognition and Behavior Lab at the University of Amsterdam and is currently a Fullbright Visiting Scholar at Stanford University. He recently published a paper on the self-attribution bias and paranormal beliefs in Consciousness and Cognition.   My name is Michiel van Elk and I am intrigued by religious and spiritual experiences. Why do some people have paranormal encounters? What causes people to experience the feeling that another invisible being is present? How do mystical experiences and feelings of transcendence come about? As a researcher working at the Religion, Cognition and Behavior Lab at the University of Amsterdam, I aim to answer these questions. I often go into the field to study religious experiences, but also conduct lab-based studies using a variety of different psychological and neurocognitive techniques. Together with my colleagues we found for instance that mystical experiences can be induced th...