NeuroimageFebruary 4, 2026Gabriel A. Della Bella, Agustina Velez Picatto, Dante Sebastián Galván Rial et al.
Non-ordinary states of consciousness (NOC) offer a way to examine how large-scale brain dynamics reorganize as experience changes. We studied a participant able to reliably enter a self-induced NOC state characterized by vivid imagery, altered bodily perception, and a sense of unity. Across 20 fMRI sessions, we measured functional connectivity in four conditions (Baseline, Transition, NOC, and...
This article presents a taxonomy of altered states of consciousness, primarily based on their central phenomenological features. Following taxonomic principles and a modified Delphi methodology, a multidisciplinary, international group identified eight distinct phenomenological/behavioral states (some with subcategories): proto and transitional, delirium, minimal to no awareness, experiential...
Maladaptive daydreaming is a distinct syndrome in which the main symptom is excessive vivid fantasising that causes clinically significant distress and functional impairment in academic, vocational and social domains. Unlike normal daydreaming, maladaptive daydreaming is persistent, compulsive and detrimental to one’s life. It involves detachment from reality in favour of intense emotional...
Mystical-type experiences can be induced through techniques like hypnosis and meditation. These experiences are common in near-death experiences (NDEs) and have been linked to paranormal beliefs. This study explored auto-induced cognitive trance (AICT) as a method to induce mystical-type experiences and NDE outside of life threatening situations (NDE-like), as well as examining the influence of...
In the 1970s, researchers and theoreticians of states of consciousness jointly discussed hypnosis and psychedelic alterations of consciousness, but recent research has mostly kept these topics apart. This paper discusses the similarities and differences of hypnosis and psychedelic alterations of consciousness, stressing that states of consciousness should not be defined by their preceding...
Objective: To explore what it is like to have a distressing near-death experience (NDE) and its aftereffects. Method: We accessed all distressing NDE narratives from the International Association for Near-Death Studies (IANDS) database and analyzed eight individual narratives using Interpretative Phenomenological Analysis (IPA). Results: Distressing NDEs include features such as disturbing...
Following the previous homage to Charles T. Tart and considering that Stan Krippner has celebrated more than 90 birthdays, this issue commemorates Stan along with two consciousness trailblazers who collaborated with him while they were alive: Jeanne Achterberg and Ruth-Inge Heinze. Jeanne was a very influential pioneer in mind/body medicine, particularly imagery in healing. Ruth-Inge Heinze had...
Abstract Transcendent/mystical experiences have been reported within the hypnotic context from its inception as “animal magnetism/mesmerism. Research on spontaneous experiences during hypnosis and minimal suggestion/neutral hypnosis evidence that such experiences are not an artifact of implicit or explicit hypnotic suggestions but may occur spontaneously when some individuals focus on their...
Charles Tart was arguably the most important theoretician and researcher of altered states of consciousness (ASC) during the second half of the 20th century. His vast output included books and articles extending the frontiers of study of states of consciousness in general, and of the hypnagogic state, dreaming, meditation, hypnosis, and minor and major psychedelic drugs, among others. Rather...
To evaluate the neurophenomenology of automatic writing (AW) in a spontaneous automatic writer (NN) and four high hypnotizables (HH). During fMRI, NN and the HH were cued to perform spontaneous (NN) or induced (HH) AW, and a comparison task of copying complex symbols, and to rate their experience of control and agency. Compared to copying, for all participants AW was associated with less sense...
Alterations of the sense of self induced by meditation include an increased sense of boundarylessness. In this study, we investigated behavioural and functional magnetic resonance imaging correlates of trait self-boundarylessness during resting state and the performance of two experimental tasks. We found that boundarylessness correlated with greater self-endorsement of words related to...
In this study, we investigate the phenomenology of selftranscendent experiences, in which the usual sense of self is lost. Based on a taxonomy of nine aspects of self and three types of content of consciousness, we compare ten accounts of such experiences acquired through in-depth interviews. Sense of separateness and identification with body and narrative self were reported as lost in all of...
Reality shifting (RS) is a trendy mental activity that emerged abruptly following the flare-up of the COVID-19 pandemic in 2020 and seems to be practiced mainly by members of the post-millennial generation. RS, described as the experience of being able to transcend one's physical confines and visit alternate, mostly fictional, universes, is discussed by many on Internet platforms. One RS forum...
Throughout history, people have described alterations of consciousness in which they experienced a sense of transcendence, being part of a much larger unity, sometimes encompassing the whole universe, or of being pure awareness. These experiences have been foundational for many religious and spiritual practices, albeit they have sometimes been treated as suspect or outright psycho- and or...
Two experiments involving an international collaboration of experimenters sought to replicate and extend a previously published psi experiment on precognition by Daryl Bem that has been the focus of extensive research. The experiment reverses the usual cause–effect sequence of a standard psychology experiment using priming and reaction times. The preregistered confirmatory hypothesis is that...
The term "retroactive avoidance" refers to a special class of effects of future stimulus presentations on past behavioral responses. Specifically, it refers to the anticipatory avoidance of aversive stimuli that were unpredictable through random selection after the response. This phenomenon is supposed to challenge the common view of the arrow of time and the direction of causality. Preliminary...
Abstract Contemplative traditions have posited that exceptional abilities can occur in conjunction with meditation. These claims have been often dismissed as mere fantasies, but some have been evaluated experimentally. This chapter reviews historical accounts from Asian and Western traditions about such abilities and summarizes the research on the relation of meditation with exceptional...
In this paper we present a multidisciplinary, developmental analysis of a Dominican Republic Vodou servidor ("Marcos"), from childhood to early adulthood, integrating ethnographic observation, field documentation, and anthropological analysis, with relevant constructs from developmental, personality, and clinical psychology. Marcos transitioned from a child with many problems to a young adult...
The target article's use of core concepts is confused and excessively broad. Two main types of experiences have been described in relation to shamanism: magical flight and mediumship/possession. The first refers to visual and remembered experiences of events in other realms, the second to embodied experiences of ceding mental control and personality to a preternatural entity. These experiences...
Responsiveness to hypnotic procedures has been related to unusual eye behaviors for centuries. Kallio and collaborators claimed recently that they had found a reliable index for "the hypnotic state" through eye-tracking methods. Whether or not hypnotic responding involves a special state of consciousness has been part of a contentious debate in the field, so the potential validity of their...
Although most definitions of hypnosis consider inductions as the initial stage in a hypnosis protocol, knowledge of inductions remains poor and uninformed by recent developments in theory and research. It is frequently argued that inductions play a critical role in hypnotic responding or, by contrast, are largely interchangeable and unimportant. Drawing on the literature on suggestibility,...
Recent studies in African contexts have revealed a strong association between spirit possession and severe trauma, with inclusion into a possession cult serving at times a therapeutic function. Research on spirit possession in the Dominican Republic has so far not included quantitative studies of trauma and dissociation. This study evaluated demographic variables, somatoform dissociative...
After a hypnotic induction, medium and highly hypnotizable individuals often report spontaneous alterations in various dimensions of consciousness. Few studies investigating these experiences have controlled for the inherent demands of specific hypnotic suggestions and fewer still have considered their dynamic properties and neural correlates. We adopted a neurophenomenological approach to...
Background: We present recommendations for revision of the diagnostic criteria for the Dissociative Disorders (DDs) for DSM‐5. The periodic revision of the DSM provides an opportunity to revisit the assumptions underlying specific diagnoses and the empirical support, or lack of it, for the defining diagnostic criteria. Methods: This paper reviews clinical, phenomenological, epidemiological,...