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Cannabis: all studies

Page 20 of 288: studies 191 to 200 of 2,874, newest first. Back to the cannabis overview

Research

Involvement of Adenosine A2A Receptors in Anxiety-Like Behaviors in Tetrahydrocannabinol-Treated Mice.

Brain and Behavior February 1, 2026 Burçin Ün, Zeki Akarsakarya, Özlem Yorulmaz Özü et al.

Previous studies have suggested that adenosinergic system in the central nervous system may play a role in both behavioral changes and the physiopathology induced by Δ9-tetrahydrocannabinol (THC), and this is thought to be mediated by adenosine A2A receptors (A2ARs). However, the contribution of the adenosinergic system to the anxiety-like behaviors in response to THC in mice is not well...

DOI: 10.1002/brb3.71126 (opens in new tab) Full text (opens in new tab) Tetrahydrocannabinol Adenosine a2a receptors Anxiety‐like behaviors Hippocampus

The Paradoxical Effect of Cannabis Use on Cognition in Chronic Psychotic Disorders

Pathophysiology January 27, 2026 Fiorela Gorea, Martina Pelle, Federico Fiori Nastro et al.

Background/Objectives: Cannabis use has a particularly high prevalence in individuals with psychotic disorders. Although cannabis use is generally associated with cognitive impairments in the general population, its impact on cognition in psychosis remains controversial. This study aimed to investigate the association between cannabis use and cognitive performance in a cohort of individuals...

Δ 9 -Tetrahydrocannabinol-induced enhancement of reward responsivity via mesocorticolimbic modulation in squirrel monkeys.

bioRxiv : the preprint server for biology January 24, 2026 Kwang-Hyun Hur, Lisa D Nickerson, Jack Bergman et al. preprint

Δ 9 -tetrahydrocannabinol (THC)-containing products are widely used recreationally, partly due to THC's ability to enhance the appetitive (i.e., rewarding) properties of diverse stimuli. However, the neural mechanisms through which THC modulates reward-related processing remain poorly understood. Here, we used a Pavlovian paradigm in adult squirrel monkeys (3males, 1female) to associate a...

Cannabis-based medicines for chronic neuropathic pain in adults.

Cochrane Database of Systematic Reviews January 19, 2026 Gülay Ateş, Patrick Welsch, Petra Klose et al. 5 citations

Estimates of the population prevalence of chronic pain with neuropathic components range from 6% to 10%. Current pharmacological treatments for neuropathic pain help only a minority. New treatments are needed. Cannabis is increasingly promoted in the media as a treatment for chronic pain. This is an update of a review first published in 2018. To assess the benefits and harms of cannabis-based...

THC induced similar physiological effects on HIV transgenic rats and their controls without affecting HIV-induced deficits in effortful motivation.

Journal of Cannabis Research January 2, 2026 Sunitha Vemuri, Samantha M. Ayoub, Arpi Minassian et al.

Cannabinoids have proven to useful for attenuating adverse effects of HIV. People living with HIV use cannabis at higher rates, with evidence suggesting it alleviates physiological symptoms such as nausea, loss of appetite, etc.. Cannabis can alter physiology as well as essential behavioral functions such as motivation. This study investigated the effect of delta-9-tetrahydrocannabinol (THC),...

The Index of Cannabis Equivalence (ICE): A User-Centered Approach to Standardization of Cannabis Dose-Response.

Journal of Psychoactive Drugs 2026 Michelle St Pierre, Stacey Squires, Sarah Daniels et al.

The increasing acceptance of cannabis use, and policy changes in several jurisdictions has led researchers and public health experts to call for a standard cannabis dose. Standard dosing units are useful tools for regulation, substance use guidelines, data collection, consistency of research, as a means of communicating low-risk recommendations and dose-related effects, and for self-monitoring....

Cognitive performance recovery following marijuana cessation in NCAA division I athletes.

Frontiers in Sports and Active Living 2026 Brandon A Ally, Paul A Mentele, Scott A Wylie

Cannabis use is increasingly common among collegiate athletes. While acute tetrahydrocannabinol (THC) effects are well documented, the chronic impact on game-speed cognition, defined as the ability to perceive, decide, and act within sub-second windows, remains poorly quantified. The current study examined whether chronic THC use degrades football specific game-speed cognition and reaction...

Randomized trial of delta-9-tetrahydrocannabinol (THC) versus placebo to augment the effects of prolonged exposure therapy on fear extinction learning in post-traumatic stress disorder: Study rationale and protocol.

Contemporary Clinical Trials 2026 Christine A Rabinak, Paul E Kilgore, Mark A. Lumley et al.

Prolonged exposure (PE) therapy is effective for PTSD, yet dropout and partial response remain concerning. Preclinical and human studies suggest Δ9-tetrahydrocannabinol (THC) enhances fear extinction and recall through brain cannabinoid receptor activation in fear processing. Examine whether synthetic THC (dronabinol) augments PE effectiveness. Double-blind, placebo-controlled, trial with...

DOI: 10.1016/j.cct.2025.108148 (opens in new tab) Full text (opens in new tab) Delta9-Tetrahydrocannabinol THC Exposure therapy Extinction Memory +1

Regional and cannabis-related differences in prefrontal multiscale entropy of resting-state EEG.

Clinical Neurophysiology Practice 2026 William T Creel, Colleen A Brenner, Richard E Hartman

Entropy analysis of electroencephalographic (EEG) data provides insight into the complexity of neural activity. This study primarily examined whether cannabis use frequency is associated with alterations in multiscale entropy (MSE) in the prefrontal cortex (PFC) and mapped baseline MSE differences across cortical regions. Resting-state EEG was collected from 57 adults: non-users (n = 18),...