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http://dx.doi.org/10.1016/j.biopsych.2019.10.006 | DOI Listing |
J Psychoactive Drugs
January 2025
Department of Psychiatry, Mathison Centre for Mental Health Research and Education, and Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
The ever-changing landscape surrounding legality and accessibility of psychedelics and their increasing popularity make it imperative to better understand the nature of psychedelic use by the general population. To this end, 1,486 eligible respondents ( = 29.58, 67.
View Article and Find Full Text PDFPrevious studies have shown that perceptual performance can be modulated at specific frequencies phase-locked to self-paced motor actions, but findings have been inconsistent. To investigate this effect at the population level, we tested 50 participants who performed a self-paced button press followed by a threshold-level detection task, using both fixed- and random-effects analyses. Contrary to expectations, the aggregated data showed no significant action-related modulation.
View Article and Find Full Text PDFAm J Psychiatry
January 2025
Centre Hospitalier de l'Université de Montréal (CHUM) and Centre de Recherche du CHUM (CRCHUM), University of Montreal, Montreal (Couture, Desbeaumes Jodoin, Bousseau, Sarshoghi, Miron, Lespérance); IfADo Leibniz Research Center for Working Environment and Human Factors at TU Dortmund, Germany, and Bielefeld University, University Hospital OWL, Protestant Hospital of Bethel Foundation, University Clinic of Psychiatry and Psychotherapy, and German Center for Mental Health (Nitsche); Temerty Centre for Therapeutic Brain Intervention and Campbell Family Research Institute, Centre for Addiction and Mental Health (CAMH) and Department of Psychiatry, University of Toronto, Toronto (Blumberger); Department of Medicine (Bolduc) and Department of Psychiatry and Addictology (Lespérance, Miron), Faculty of Medicine, University of Montreal, Montreal; Interventional Psychiatry Program, Department of Psychiatry, UC San Diego School of Medicine, San Diego (Weissman, Appelbaum, Daskalakis, Poorganji, Miron).
Objective: This study investigated spaced transcranial direct current stimulation for major depressive disorder, focusing on feasibility.
Methods: In a prospective open-label study, 30 participants with major depressive disorder were enrolled to receive a 50-session transcranial direct current stimulation (tDCS) treatment over 2 weeks. The feasibility, safety, tolerability, and preliminary therapeutic effects of this tDCS protocol were assessed using the 17-item Hamilton Depression Rating Scale (HAM-D-17) and the Montgomery-Åsberg Depression Rating Scale (MADRS) at baseline and 1-week and 4-week follow-ups, as well as with the 6-item HAM-D (HAM-D-6) daily during treatment.
Mov Disord
January 2025
School of Psychological Sciences and Turner Institute for Brain and Mental Health, Monash University, Melbourne, Victoria, Australia.
Background: Despite advancements in understanding Huntington's disease (HD) over the past two decades, absence of disease-modifying treatments remains a challenge. Accurately characterizing progression states is crucial for developing effective therapeutic interventions. Various factors contribute to this challenge, including the need for precise methods that can account for the complex nature of HD progression.
View Article and Find Full Text PDFGenet Epidemiol
March 2025
Department of Social and Preventive Medicine, Laval University, Quebec City, Quebec, Canada.
A large proportion of genetic variations involved in complex diseases are rare and located within noncoding regions, making the interpretation of underlying biological mechanisms a daunting task. Although technical and methodological progress has been made to annotate the genome, current disease-rare-variant association tests incorporating such annotations suffer from two major limitations. First, they are generally restricted to case-control designs of unrelated individuals, which often require tens or hundreds of thousands of individuals to achieve sufficient power.
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