People with cannabis use disorder showed altered neurophysiological error processing associated with reduced insight into their own addiction, potentially explaining low treatment-seeking rates.
Addiction neuroscientists, CUD clinicians, neuropsychologists, and individuals questioning their cannabis use patterns.
Insight impairmentNeurophysiological error processing deficits correlated with reduced addiction self-awareness in CUD
What the researchers found
CUD was characterized by impaired neurophysiological error processing that correlated with reduced addiction self-awareness (insight), suggesting a neural basis for why many people with CUD do not recognize their condition or seek treatment.
Why it matters
Low treatment-seeking in CUD may partly result from neurobiological changes that impair the very self-awareness needed to recognize problematic use, creating a self-perpetuating cycle.
The numbers in context
CUD prevalence has increased while perceived risks of cannabis use and treatment-seeking rates have decreased.
How the study worked
Neurophysiological study using EEG/ERP to measure error processing and correlating with measures of addiction insight and self-awareness.
Who was studied
Individuals with cannabis use disorder compared to controls, assessed for neurophysiological error processing and addiction insight.
What this study cannot tell us
Cross-sectional design cannot determine if impaired insight precedes or results from CUD; error processing tasks may not fully capture real-world self-monitoring; sample size typical of neurophysiology studies.
How to read the evidence
Neurophysiological study with direct brain measurements; cross-sectional design limits causal interpretation.
When this study was published
Recent study using neuroimaging to explain a clinically important phenomenon.
The bigger picture
This research connects neuroscience and clinical addiction, suggesting that the brain changes from chronic cannabis use may directly undermine the capacity for self-recognition of the disorder.
Replication
Novel application of error processing paradigms to CUD insight; extends findings from other substance use disorders.
Funding
Not specified
Conflicts of interest
Not specified
Questions still open
- Can insight-focused interventions improve CUD treatment engagement?
- Does error processing recover with abstinence?
- Are insight deficits specific to CUD or common across substance use disorders?
Read the original research
Neurophysiological error processing and addiction self-awareness correlates of reduced insight in cannabis use disorder.
Addiction (Abingdon, England), 118(12), 2397-2412
Citation
Macatee, Richard J; Schermitzler, Brandon S; Minieri, Jessica B; Moeller, Scott J; Afshar, Kaveh; Preston, Thomas J. (2023). Neurophysiological error processing and addiction self-awareness correlates of reduced insight in cannabis use disorder.. Addiction (Abingdon, England), 118(12), 2397-2412. https://doi.org/10.1111/add.16321