Research Square
November 15, 2022
Kennedy Robertson, Ian Gold, Samuel P. L. Veissière et al.
Abstract Purpose: Delusional ideation, defined as false beliefs and altered thinking, has long been attributed to anomalous/bizarre perceptual experiences and reasoning deficits. Recent studies, however, have challenged this view, suggesting instead that delusional ideation may have more of a social component to its phenomenology and underlying mechanisms. This study investigated associations...
Transcultural Psychiatry
October 1, 2022
David Dupuis, Samuel P. L. Veissière
70 citations
Following decades of prohibition and widespread concern about their mind-altering properties, there is increasing public, scholarly, and clinical interest in the therapeutic potential of psychedelic substances. Serotonergic substances in particular (DMT, psilocybin, and LSD) are now being tested as treatments for such ailments as depression, anxiety, and substance use disorder. This thematic...
Psychopharmacology
March 7, 2020
Jay A. Olson, Léah Suissa-Rocheleau, Michael Lifshitz et al.
148 citations
RationaleIs it possible to have a psychedelic experience from a placebo alone? Most psychedelic studies find few effects in the placebo control group, yet these effects may have been obscured by the study design, setting, or analysis decisions.ObjectiveWe examined individual variation in placebo effects in a naturalistic environment resembling a typical psychedelic party.MethodsThirty-three...
The Behavioral and brain sciences
May 30, 2019
Samuel P. L. Veissière, Axel Constant, Maxwell J D Ramstead et al.
362 citations
The processes underwriting the acquisition of culture remain unclear. How are shared habits, norms, and expectations learned and maintained with precision and reliability across large-scale sociocultural ensembles? Is there a unifying account of the mechanisms involved in the acquisition of culture? Notions such as "shared expectations," the "selective patterning of attention and behaviour,"...