Addiction

Video Game Addiction vs. Brain Activity & Response Inhibition: A Cued Go/NoGo Task Study

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Video game addiction (VGA) is associated with significant deficits in response inhibition and preparatory processes, reflected by more commission errors and reduced N2 amplitudes in the cued Go/NoGo task. Highlights: Increased Commission Errors: Individuals with VGA made significantly more commission errors in NoGo trials compared to healthy controls, indicating impaired response inhibition. Faster Reaction Times: …

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Cannabis (Marijuana) Addiction Linked to Altered Brain Connectivity (2024 Study)

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Individuals at risk for cannabis use disorder (CUD) exhibit increased dynamic fluidity and altered connectivity patterns in brain networks, suggesting early changes in brain function that may contribute to cannabis addiction risk. Highlights: At-risk individuals for cannabis addiction show a greater number of meta-states and more frequent transitions between them, indicating higher dynamic fluidity in …

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Cocaine Addiction Linked to Brain Shrinkage & Grey Matter Deficits (2024 Study)

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Cocaine Use Disorder (CUD) patients exhibit widespread gray matter atrophy, with specific brain volume deficits associated with crack-cocaine use and relapse outcomes. Highlights: Widespread Gray Matter Atrophy: CUD patients show significant gray matter volume reductions in frontal and temporal cortices, cerebellum, and subcortical structures compared to healthy controls. Route of Use: Crack-cocaine use is linked …

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rTMS of Left Dorsolateral Prefrontal Cortex (DL-PFC) May Treat Methamphetamine Addiction via Altering Cravings & Decision Making (2024 Study)

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Repetitive transcranial magnetic stimulation (rTMS) on the left dorsolateral prefrontal cortex (dlPFC) improves decision-making and reduces cravings in individuals with methamphetamine use disorder (MUD). Highlights: Improved Decision-Making: rTMS treatment enhanced decision-making abilities in MUD patients, making their choices more rational and similar to healthy individuals. Craving Reduction: Participants experienced a significant decrease in cravings for …

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Deep Brain Stimulation (DBS) of Nucleus Accumbens Treats Cocaine Addiction in Male Rats But Not Females (2024 Study)

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Deep brain stimulation (DBS) in the nucleus accumbens reduces cocaine seeking in male rats but is ineffective in female rats, regardless of their estrous cycle phase. Highlights: No FDA-Approved Treatments: There are currently no FDA-approved treatments for cocaine use disorder. DBS Reduces Cocaine Seeking in Males: Previous studies and the current experiment show that DBS …

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GLP-1 Receptor Agonists Like Semaglutide (Ozempic) May Treat Reward System Dysfunction (2024 Review)

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GLP-1 receptor agonists (GLP-1RAs) show promise in regulating the reward system and potentially treating motivation and reward-processing disorders. Highlights: Regulation of Reward System Dysfunction: GLP-1RAs influence the brain’s reward system, which is involved in behaviors related to food and substance use. Brain Activation: These agonists affect brain regions differently in individuals ranging from lean to …

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Alcohol Use Disorder (AUD): Contributing Factors via Neuroclinical Addiction Analysis (2024)

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A study broke down Alcohol Use Disorder (AUD) into specific brain-related categories and identified key factors that can help understand and classify AUD more accurately. Higlights: Cravings & Insensitivity: The study identified two main factors related to alcohol desire – one about craving alcohol and the other about not feeling its effects strongly. Emotions: Three …

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Alcohol & Depression: Occasional Drinking May Lower Risk, Frequent Drinking Increases It (2024 Study)

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TLDR: Occasional drinking may help reduce the risk of major depression, but frequent drinking worsens it. Highlights: Occasional alcohol consumption is linked to a lower risk of major depression. Frequent alcohol intake increases the risk of major depression. The risk increase from frequent drinking persists even when different types of alcohol are considered. The impact …

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Most Effective Smoking Cessation Aids: Varenicline, Cytisine, E-Cigs (Evidence Review)

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New research provides clarity on the most effective cessation aids available. Varenicline, cytisine, and e-cigarettes help the greatest proportion of people quit long-term. Slowly tapering nicotine dose before ending treatment may also boost success rates. Bupropion slightly raises the risk of serious side effects. Key Facts: Varenicline, cytisine, and e-cigarettes have the highest quit rates, …

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Improving Addiction Treatment by Targeting Cognitive Deficits

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People struggling with substance use disorders often have difficulties with memory, attention, planning, and decision-making. New research explores how these cognitive deficits relate to treatment outcomes and whether targeting them could improve addiction recovery. Key Facts: Cognitive deficits are common in people with substance use disorders, especially relating to memory, attention, self-control, and reward-based decision-making. …

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