bioRxiv (Cold Spring Harbor Laboratory)
August 4, 2026
Conor H. Murray, Michael Angyus, Sam Suchin et al.
preprint
Abstract Altered states of consciousness (ASC) refer to states that differ markedly from normal waking consciousness. ASC may occur spontaneously, such as in dreaming, or through consciousness modifying techniques, from meditation, to cannabis and psychedelics. The etymology behind the term psychedelic, meaning mind-manifesting, is based on the hypothesis that certain substances, including...
Frontiers in Psychology
2026
Conor H. Murray, Kafui Dzirasa, Dana W. Sawyer et al.
What consciousness is, and how it relates to the body and nature at large, are among the most enduring questions in human history. Notable thinkers have long grappled with its definition, mechanisms, and purpose. In this review, we examine both historical and contemporary perspectives on consciousness across philosophy, science, medicine, and practice. By integrating diverse perspectives and...
Journal of Psychedelic Studies
May 17, 2025
Daria Dikovskaya, Bhargav Srinivasa Desikan, Joel Frohlich et al.
2 citations
Abstract Background and aims Altered states of consciousness (ASC) represent acute and marked deviations from normal waking consciousness. Investigations into ASC are significant to problems in medicine, science, and philosophy, including the structure of conscious experience. Here, we conducted a preliminary investigation into the structure of ASC while addressing the role of psychedelics,...
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
June 1, 2024
Conor H. Murray, Joel Frohlich, Connor J Haggarty et al.
30 citations
Neural complexity correlates with one's level of consciousness. During coma, anesthesia, and sleep, complexity is reduced. During altered states, including after lysergic acid diethylamide (LSD), complexity is increased. In the present analysis, we examined whether low doses of LSD (13 and 26 µg) were sufficient to increase neural complexity in the absence of altered states of consciousness. In...
Neuropsychopharmacology
May 13, 2024
Conor H. Murray
MDMA-assisted psychotherapy has emerged as a potential treatment for psychiatric illnesses, with findings from clinical trials in the last decade demonstrating safety and efficacy in the treatment of posttraumatic stress disorder (PTSD), among other psychiatric indications. Earlier this year (2024), the Food and Drug Administration in the United States granted priority review for a new drug...
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
2023
James Glazer, Conor H. Murray, Robin Nusslock et al.
52 citations
Renewed interest in classic psychedelics as treatments for psychiatric disorders warrants a deeper understanding of their neural mechanisms. Single, high doses of psychedelic drugs have shown promise in treating depressive disorders, perhaps by reversing deficits in reward processing in the brain. In addition, there are anecdotal reports that repeated ingestion of low doses of LSD, or...
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology
June 1, 2022
Conor H. Murray, Zhengyi Huang, Royce Lee et al.
Increased cannabis availability has contributed to increased use with concomitant incidence of adverse effects. One risk factor for adverse drug reactions may be age. There is preclinical evidence that acute effects of delta-9-tetrahydrocannabinol (THC), the primary active constituent of cannabis, are greater during adolescence, but this has not been fully studied in humans. The present study...
Conscious Cogn
May 28, 2022
Conor H. Murray, Bhargav Srinivasa Desikan
20 citations
Altered states of consciousness (ASC) provide an opportunity for researchers to study the neurophysiological basis of changes in phenomenal experience. Δ9-tetrahydrocannabinol (THC) is the primary psychoactive constituent of cannabis, however whether the effects of THC include ASC features that are shared with other ASC induction mechanisms, such as classical psychedelics, has not been...
Psychopharmacology
October 6, 2021
Conor H. Murray, Ilaria Tare, Claire Perry et al.
75 citations
Classical psychedelics, including psilocybin and lysergic acid diethylamide (LSD), are under investigation as potential therapeutic agents in psychiatry. Whereas most studies utilize relatively high doses, there are also reports of beneficial effects of “microdosing,” or repeated use of very low doses of these drugs. The behavioral and neural effects of these low doses are not fully understood....