Lysergic acid diethylamide (LSD), the prototypical “psychedelic,” may be unique among psychoactive substances. In the decades that followed its discovery, the magnitude of its effect on science, the arts, and society was unprecedented. LSD produces profound, sometimes life-changing experiences in microgram doses, making it a particularly powerful scientific tool. Here we sought to examine its...
The faculty of memory, comprising memorization and remembrance, is often viewed as entirely rational. This paper focuses on three phenomena, poetry, mystery initiations, and Plato’s philosophy, in order to demonstrate that in some spheres, mania and mnêmê intertwined. The poet’s memory is only partially his own: he recalls and commemorates in the grip of divine inspiration, when he is out of...
A distinctive feature common to many contemplative practices is a focus of attention and procedure of induction toward achieving an altered state of consciousness. In recent years, practices like mindfulness have become increasingly popular, and there has been increased interest in the relationship between hypnosis and mindfulness-based practices as well as other contemplative practices...
AnesthesiologyApril 2020Jesus J Ballesteros, Pamela Huang, Shaun R Patel et al.
Ketamine is a noncompetitive N-methyl-D-aspartate antagonist and is known for unique electrophysiologic profiles in electroencephalography. However, the mechanisms of ketamine-induced unconsciousness are not clearly understood. The authors have investigated neuronal dynamics of ketamine-induced loss and return of consciousness and how multisensory processing is modified in the primate...
This study is the first to contribute to a registration-based prospective meta-analysis of ganzfeld Extrasensory Perception (ESP) studies. We sought to maximize the anticipated psi effect size by selecting participants for self-reported creativity, prior psi experience or belief, or practice of a mental discipline. We also employed an automated precognition design for simplicity and security,...
Whether the brain operates at a critical ‘‘tipping” point is a long standing scientific question, with evidence from both cellular and systems-scale studies suggesting that the brain does sit in, or near, a critical regime. Neuroimaging studies of humans in altered states of consciousness have prompted the suggestion that maintenance of critical dynamics is necessary for the emergence of...
It is often claimed that a minimal form of self-awareness is constitutive of our conscious experience. Some have considered that such a claim is plausible for our ordinary experiences but false when considered unrestrictedly on the basis of the empirical evidence from altered states. In this paper I want to reject such a reasoning. This requires, first, a proper understanding of a minimal form...
Can there be phenomenal consciousness without self-consciousness? Strong intuitions and prominent theories of consciousness say “no”: experience requires minimal self-awareness, or “subjectivity”. This “subjectivity principle” (SP) faces apparent counterexamples in the form of anomalous mental states claimed to lack self-consciousness entirely, such as “inserted thoughts” in schizophrenia and...
Psychedelic drugs such as psilocybin, LSD and DMT are known to induce powerful alterations in phenomenology. Perhaps of most philosophical and scientific interest is their capacity to disrupt and even “dissolve” one of the most primary features of normal experience: that of being a self. Such “peak” or “mystical” experiences are of increasing interest for their potentially transformative...
The holotropic mind perspective, an integral part of the framework of transpersonal psychology, has been considered a revolutionary approach to a certain spectrum of experiences in Non-ordinary states of consciousness (NOSC) which conventional approaches tend to treat indiscriminately as pathological processes, because PHM recognizes in these experiences their healing and evolutionary...