Skip to content

Altered states of consciousness: all studies

Page 271 of 271: studies 2,701 to 2,708 of 2,708, newest first. Back to the altered states of consciousness overview

Research

Classical Processing of Primary Delusional Experiences in a Family with Shared Delusion and Trance Possession Attacks – A Case Report

Research Square Amit Kumar preprint

Abstract Possession trance involves single or episodic alterations in the state of consciousness, characterized by the exchange of the person’s customary identity with a new identity usually attributed to a spirit, divine power, deity, or another person. In this possessed state, the individual exhibits stereotypical and culturally determined behaviors or experiences being controlled by the...

Altered states of Ganzfeld: A systematic review

Anney Roy

The Ganzfeld experiment appears as a uniform and unstructured field that may measure altered states of consciousness. The experiment uses a dim light frequency projected on translucent eye covers combined with a static audio frequency emitted through a pair of headphones. Since altered states and alpha interactions appear in Ganzfeld studies, the hypothesis here states that they may be...

Implicit-explicit gradient of nondual awareness or consciousness as such

Zoran Josipovic 5 citations

Consciousness is multi-dimensional but is most often portrayed with a 2-D map that has global levels or states on one axis, and phenomenal contents on the other. On this map, phenomenal content is conflated with awareness itself, which contributes to ongoing difficulties in the scientific understanding of consciousness. Previously (Josipovic 2014, 2019; Josipovic and Miskovic, 2020) I have...

Early and Contemporary Human Neuroimaging Studies of Serotonergic Psychedelics

Preprints.org Enzo Tagliazucchi 2 citations preprint

Serotonergic psychedelics are known to elicit changes in conscious awareness, including perception of the environment and the self, as well as in mood, emotion and different aspects of cognition (Nichols, 2016). The effect of these compounds is complex and resists a straightforward classification that is useful for other drugs, such as “stimulants” or “sedatives”. While the effects of certain...

Neurophenomenology of Out-of-Body experiences induced by hypnotic suggestions

Enrico Facco, Edoardo Casiglia, Benedikt Emanuel Al Khafaji et al. preprint

Inducing out-of-body experiences in hypnosis (H-OBEs) offers an almost unique opportunity to investigate them in a controlled condition.OBEs were induced as imaginative task in resting conditions (I-OBE) or in hypnosis (H-OBE) in 15 high hypnotizable subjects. A 32-channel EEG was recorded and the spectral power and imaginary coherence were calculated. At the end of each session, the...

Ketamine-induced pleasant but not unpleasant dissociation is linked to the functional connectivity profile of the posteromedial cortex

Zümrüt Duygu Sen, Nitin Sharma, Lena Vera Danyeli et al. preprint

Along with its rapid therapeutic benefits, ketamine induces transient experience of dissociation during administration. Given the suggested association between ketamine-induced dissociation and treatment response, understanding the neural correlates of dissociation would help to elucidate its therapeutic mechanism. The posteromedial cortex (PMC) has been reported to play a vital role in the...

Brain State Dynamics in Ketamine-Induced Dissociation Resemble Those in PTSD

Noam Goldway, Taly Markovits, Naomi Fine et al. preprint

Dissociation, an altered state of consciousness in which individuals feel detached from their body, environment, and sense of self, is a common feature of Post-Traumatic Stress Disorder (PTSD). Despite its significance, the neurocognitive processes underlying dissociation remain poorly understood, potentially limiting the effectiveness of PTSD diagnostics and treatment. To address this gap, we...

Born Twice DMT and the Echo of Our First Conscious Experience

Tony R. Montgomery

Understanding how a simple endogenous tryptamine could occasion profound alterations in perception and self-modeling remains a key challenge for neuroscience. We advance the Birth Echo Hypothesis (BEH) : during a narrowly defined perinatal window (≈ −2 to +24 h around delivery), a convergence of hypoxic–hypercapnic stress, maximal sensory novelty, and a poly-neuromodulatory milieu...