Neural correlates of the psychedelic state

Neural correlates of the psychedelic state

Neural correlates of the psychedelic state as determined by fMRI studies with psilocybin Psychedelic drugs have a long history of use in healing ceremonies, but despite renewed interest in their therapeutic potential, we continue to know very little about how they work in the brain. Here we used psilocybin, a classic psychedelic found in magic […]

Homological scaffolds of brain functional networks

Homological scaffolds of brain functional networks

Homological scaffolds of brain functional networks Networks, as efficient representations of complex systems, have appealed to scientists for a long time and now permeate many areas of science, including neuroimaging (Bullmore and Sporns 2009 Nat. Rev. Neurosci. 10, 186–198. (doi:10.1038/nrn2618)). Traditionally, the structure of complex networks has been studied through their statistical properties and metrics […]

A web based survey on mephedrone

A web based survey on mephedrone

A web-based survey on mephedrone Mephedrone (4-methylmethcathinone) is a substituted cathinone with stimulant properties. The popularity of mephedrone in the UK rose sharply in 2009 after it became seen as a legal, cheap and easily available alternative to MDMA (ecstasy). Adverse events associated with its use, including a series of alleged deaths, attracted media attention […]

LSD enhances suggestibility in healthy volunteers

LSD enhances suggestibility in healthy volunteers

LSD enhances suggestibility in healthy volunteers Lysergic acid diethylamide (LSD) has a history of use as a psychotherapeutic aid in the treatment of mood disorders and addiction, and it was also explored as an enhancer of mind control. Objectives The present study sought to test the effect of LSD on suggestibility in a modern research […]

Broadband Cortical Desynchronization Underlies Psychedelic State

Broadband Cortical Desynchronization Underlies Psychedelic State

Broadband Cortical Desynchronization Underlies the Human Psychedelic State   Psychedelic drugs produce profound changes in consciousness, but the underlying neurobiological mechanisms for this remain unclear. Spontaneous and induced oscillatory activity was recorded in healthy human participants with magnetoencephalography after intravenous infusion of psilocybin—prodrug of the nonselective serotonin 2A receptor agonist and classic psychedelic psilocin. Psilocybin […]

Relative Harms and Benefits of Drugs

Relative Harms and Benefits of Drugs

Experienced Drug Users Assess the Relative Harms and Benefits of Drugs: A Web-Based Survey   A web-based survey was used to consult the opinions of experienced drug users on matters related to drug harms. We identified a rare sample of 93 drug users with personal experience with 11 different illicit drugs that are widely used […]

MDMA on subjective and BOLD-fMRI responses to autobiographical memories

MDMA on subjective and BOLD-fMRI responses to autobiographical memories

The effect of acutely administered MDMA on subjective and BOLD-fMRI responses to favourite and worst autobiographical memories 3,4-methylenedioxymethamphetamine (MDMA) is a potent monoamine-releaser that is widely used as a recreational drug. Preliminary work has supported the potential of MDMA in psychotherapy for post-traumatic stress disorder (PTSD). The neurobiological mechanisms underlying its putative efficacy are, however, […]

Homological scaffolds of brain functional networks

Homological scaffolds of brain functional networks

Homological scaffolds of brain functional networks Networks, as efficient representations of complex systems, have appealed to scientists for a long time and now permeate many areas of science, including neuroimaging (Bullmore and Sporns 2009 Nat. Rev. Neurosci. 10, 186–198. (doi:10.1038/nrn2618)). Traditionally, the structure of complex networks has been studied through their statistical properties and metrics […]

Brain Dynamical States During the Psychedelic Experience

Brain Dynamical States During the Psychedelic Experience

Enhanced Repertoire of Brain Dynamical States During the Psychedelic Experience The study of rapid changes in brain dynamics and functional connectivity (FC) is of increasing interest in neuroimaging. Brain states departing from normal waking consciousness are expected to be accompanied by alterations in the aforementioned dynamics. In particular, the psychedelic experience produced by psilocybin (a […]