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Altered states of consciousness: all studies

Page 121 of 271: studies 1,201 to 1,210 of 2,708, newest first. Back to the altered states of consciousness overview

Research

A landscape of consciousness: Toward a taxonomy of explanations and implications.

Progress in Biophysics and Molecular Biology August 1, 2024 Robert Lawrence Kuhn 121 citations

Diverse explanations or theories of consciousness are arrayed on a roughly physicalist-to-nonphysicalist landscape of essences and mechanisms. Categories: Materialism Theories (philosophical, neurobiological, electromagnetic field, computational and informational, homeostatic and affective, embodied and enactive, relational, representational, language, phylogenetic evolution); Non-Reductive...

Naturalistic use of psychedelics does not modulate processing of self-related stimuli (but it might modulate attentional mechanisms): An event-related potentials study.

Psychophysiology August 1, 2024 Paweł Orłowski, Justyna Hobot, Anastasia Ruban et al. 5 citations

Classic psychedelics are able to profoundly alter the state of consciousness and lead to acute experiences of ego dissolution - the blurring of the distinction between representations of self and the external world. However, whether repeated use of psychedelics is associated with more prolonged and permanent modifications to the concept of self remains to be investigated. Therefore, we...

DOI: 10.1111/psyp.14583 (opens in new tab) Full text (opens in new tab) P300 Electroencephalography EEG Psychedelics Self‐perception

High-order brain interactions in ketamine during rest and task: a double-blinded cross-over design using portable EEG on male participants.

Translational Psychiatry July 27, 2024 Rubén Herzog, Florentine Marie Barbey, Md Nurul Islam et al. 13 citations

Ketamine is a dissociative anesthetic that induces a shift in global consciousness states and related brain dynamics. Portable low-density EEG systems could be used to monitor these effects. However, previous evidence is almost null and lacks adequate methods to address global dynamics with a small number of electrodes. This study delves into brain high-order interactions (HOI) to explore the...

The psychedelic mind: Current user perceptions of psychedelic drugs and their use

Drugs, Habits and Social Policy July 18, 2024 Sarah Mcgruddy, Jai Whelan, Ethan Mills et al.

Purpose Psychedelic drugs can induce altered states of consciousness characterised by changes in visual perception, tactile sensation, cognition, and emotion. Although there is a history of misinformation surrounding these drugs, recent investigation has reinvigorated interest. However, little research has assessed the attitudes of psychedelic consumers regarding these substances. The current...

Quality space computations for consciousness

Trends in Cognitive Sciences July 17, 2024 Stephen M Fleming, Nicholas Shea 26 citations

The quality space hypothesis about conscious experience proposes that conscious sensory states are experienced in relation to other possible sensory states. For instance, the colour red is experienced as being more like orange, and less like green or blue. Recent empirical findings suggest that subjective similarity space can be explained in terms of similarities in neural activation patterns....

DOI: 10.1016/j.tics.2024.06.007 (opens in new tab) Consciousness Space punctuation Quality philosophy Cognitive science +4

Chronos vs Kairos - The Perception of Time in Near-Death Experiences, Mystical States of Consciousness, and Psychedelic-Induced States of Consciousness

Preprints.org July 16, 2024 Mitchell B. Liester preprint

Time can be a difficult concept to understand. Albert Einstein, who viewed time as an illusion, explained the passage of time is relative to the observer’s frame of reference in the space-time continuum. However, the state of consciousness of the observer also influences the passage of time. This paper examines the relationship between the experience of time and different states of...

Documenting and defining emergent phenomenology: theoretical foundations for an extensive research strategy

Frontiers in Psychology July 10, 2024 Olivier Sandilands, Daniel M. Ingram 6 citations

Meditation, psychedelics, and other similar practices or induction methods that can modulate conscious experience, are becoming increasingly popular in clinical and non-clinical settings. The phenomenology associated with such practices or modalities is vast. Many similar effects and experiences are also reported to occur spontaneously. We argue that this experiential range is still not fully...

DOI: 10.3389/fpsyg.2024.1340335 (opens in new tab) Meditation Phenomenology philosophy Experiential learning Modalities +10

Psychothérapie assistée par psychédéliques (PAP) : le modèle genevois

Annales Médico-psychologiques revue psychiatrique July 10, 2024 Federico Seragnoli, Gabriel Thorens, Louise Penzenstadler et al. 8 citations

Dans cet article, nous avons pour objectif de décrire un modèle interdisciplinaire de psychothérapie assistée par psychédéliques (PAP) que nous avons développé dans un cadre institutionnel aux hôpitaux universitaires de Genève. La psychothérapie assistée par psychédéliques (PAP) est une approche psychothérapeutique exploitant l’altération de l’état de conscience induite par une substance...

Laminar Distribution of Cannabinoid Receptor 1 in the Prefrontal Cortex of Nonhuman Primates.

Molecular Neurobiology July 2024 Yingying Han, Qianyu Dong, Jiyun Peng et al.

Cannabis is an annual herb of the genus Cannabis, with a history of medical use going back thousands of years. However, its abuse causes many side-effects, including confusion of consciousness, alienation, and mental disorders such as schizophrenia and depression. Research conducted on rodents suggests that there are two types of cannabinoid receptors-cannabinoid receptor 1 (CB1R) and...

DOI: 10.1007/s12035-023-03828-4 (opens in new tab) Full text (opens in new tab) Cb1r Immunofluorescence histochemical Monkey Pfc +1

Worlds of Consciousness in the Context of Multiverse Conceptions

Voprosy Filosofii July 1, 2024 Helena Knyazeva

The article discusses the idea of the plurality of worlds of human consciousness and animal psyche from the perspective of the conception of enactivism, philo­sophical phenomenology and complexity theory. It is shown that the multiversal­ity of consciousness can be associated not only with its different states (sleep, wakefulness, extreme and altered states, personal and transpersonal...

DOI: 10.21146/0042-8744-2024-5-128-133 (opens in new tab) Consciousness Context archaeology Epistemology