Brain Sciences
March 15, 2022
Laura Prieto-Arenas, Ignacio Díaz, María Carmen Arenas
26 citations
Gender differences in psychiatric disorders and drug use are well known. Cannabis is the most widely used illegal drug among young people. In recent years, its use has been related to the development of psychiatric pathologies; however, few studies have incorporated the gender perspective as of yet. The present work analyses the literature to determine the existence of gender differences in the...
JAMA Psychiatry
March 1, 2022
Thomas D Marcotte, Anya Umlauf, David J Grelotti et al.
Expanding cannabis medicalization and legalization increases the urgency to understand the factors associated with acute driving impairment. To determine, in a large sample of regular cannabis users, the magnitude and time course of driving impairment produced by smoked cannabis of different Δ9-tetrahydrocannabinol (THC) content, the effects of use history, and concordance between perceived...
Neurology and therapy
March 1, 2022
Dan Bosnyak, Alison C McDonald, Israel Gasperin Haaz et al.
Current methods to detect recent delta-9-tetrahydrocannabinol (THC) use cannot objectively quantify its psychoactive effects (PE). The Cognalyzer®, an electroencephalography (EEG)-based method, detects and quantifies the strength of THC-induced PE on a scale from 0 to 100%. This study assesses the relationship between the magnitude of Cognalyzer® PE predictions and reported subjective drug...
International Journal of Environmental Research and Public Health
February 27, 2022
Andrzej Silczuk, Daria Smułek, Marcin Kołodziej et al.
10 citations
The rising popularity of medical marijuana and its potential therapeutic uses has resulted in passionate discussions that have mainly focused on its possible benefits and applications. Although the concept itself seems promising, the multitude of presented information has noticeable ramifications-terminological chaos being one. This work aimed to synthesize and critically analyze scientific...
Brain Sciences
February 24, 2022
Julia C. Harris, Alexander L. Wallace, Alicia M. Thomas et al.
Background. Numerous neuropsychological studies have shown that cannabis use during adolescence and young adulthood led to deficits in sustained and selective attention. However, few studies have examined functional connectivity in attentional networks among young cannabis users, nor have characterized relationships with cannabis use patterns following abstinence. Methods. Differences in...
Cannabis
February 22, 2022
Sean P Madden, John G Keilp, Olivia Wu et al.
Objective. Some adverse cannabis effects are greater in individuals on the psychosis spectrum compared to healthy individuals. We have previously reported that smoked cannabis acutely worsened psychotic-like states and reduced cognitive performance selectively in cannabis users at clinical high-risk (CHR) for psychosis. The objective of the present study was to further investigate the acute...
February 18, 2022
Will Lawn, Natalia Fernandez‐Vinson, Claire Mokrysz et al.
preprint
Background: Preclinical and human studies suggest that adolescent cannabis use may be associated with worse cognitive outcomes than adult cannabis use. We investigated the associations between chronic cannabis use and cognitive function in adolescent and adult cannabis users and controls. We hypothesised user-status would be negatively associated with cognitive function and this relationship...
Scientific Reports
February 14, 2022
Johannes G. Ramaekers, Natasha L. Mason, Stefan W. Toennes et al.
26 citations
Resting state fMRI has been employed to identify alterations in functional connectivity within or between brain regions following acute and chronic exposure to Δ9-tetrahydrocannabinol (THC), the psychoactive component in cannabis. Most studies focused a priori on a limited number of local brain areas or circuits, without considering the impact of cannabis on whole-brain network organization....
The Brown University Child & Adolescent Psychopharmacology Update
February 10, 2022
Alison Knopf
The January issue of the American Journal of Psychiatry (AJP) focuses on the interactions between alcohol use, cannabis use, substance use disorders (SUDs), and other psychiatric illnesses. One of the biggest questions for clinicians treating patients with first‐episode psychosis when cannabis has been involved is the chicken‐and‐egg question — was the psychosis brought on by cannabis use or...
Middle East Current Psychiatry
February 10, 2022
El Hassan Ouanouche, Hicham Elmostafi, Naoufal Amarat et al.
In addition to the biological plausibility widely described through a very large number of studies, the causal link between cannabis uses and schizophrenia disorders has become illicit internationally and given the scarcity of similar studies in Morocco. Our study consists of a prospective descriptive study in the psychiatric department of the Moulay ben Abdallah Hospital in Essaouira. The...