Cannabis users with high distress intolerance showed enhanced rather than impaired brain conflict-monitoring under stress
An EEG study of frequent cannabis users found that those with high distress intolerance showed stress-enhanced (not impaired) conflict-monitoring neural activity, which was associated with fewer cannabis problems, contradicting the hypothesis that stress impairs cognitive control in this group.
Quick Facts
What This Study Found
Researchers tested whether high distress intolerance (difficulty tolerating negative emotions) would lead to stress-induced impairment of response inhibition in frequent cannabis users.
Cannabis users with high and low distress intolerance completed a Go/No-Go task during EEG recording before and after a laboratory stressor.
Contrary to the hypothesis, cannabis users with high distress intolerance showed enhanced conflict-monitoring neural activity (N2 amplitude) after stress rather than impairment. This enhancement was associated with faster reaction times and fewer past-month cannabis problems.
Enhanced P3a amplitude (evaluative processing) was associated with increased cannabis problems regardless of stress, suggesting different neural processes contribute differently to cannabis use patterns.
The authors concluded that stress-enhanced conflict monitoring may be an adaptive neural response that protects against cannabis use disorder in at-risk individuals.
Key Numbers
Distress intolerance significantly moderated stressor effects on N2 (conflict monitoring) but not P3a (evaluative processing) amplitude. Enhanced N2 associated with faster reaction time and decreased past-month cannabis problems.
How They Did This
Cross-sectional EEG study. Frequent cannabis users categorized by high/low distress intolerance. Go/No-Go task before and after laboratory stressor. N2 and P3a event-related potential components measured as markers of conflict monitoring and evaluation.
Why This Research Matters
The finding that stress enhanced rather than impaired cognitive control in high-DI cannabis users challenges assumptions about the stress-addiction pathway. It suggests that some at-risk individuals may have adaptive neural responses that protect against escalating cannabis use.
The Bigger Picture
Addiction theories often assume that stress universally impairs cognitive control, leading to substance use. This study complicates that picture by showing that individual differences in how the brain responds to stress may determine who develops problematic use patterns.
What This Study Doesn't Tell Us
Cross-sectional design. Laboratory stressor may not capture real-world stress. EEG measures neural electrical activity but cannot pinpoint exact brain regions. Frequent cannabis users as the entire sample limits comparison to non-users.
Questions This Raises
- ?What distinguishes cannabis users who show adaptive versus maladaptive stress responses?
- ?Could stress-response profiles help identify who is at risk for cannabis use disorder?
- ?Would these findings replicate with real-world stressors?
Trust & Context
- Key Stat:
- Stress enhanced conflict-monitoring in high-risk users, linked to fewer cannabis problems
- Evidence Grade:
- Preliminary. Novel findings that contradict prior theory, but cross-sectional design and single sample limit generalizability.
- Study Age:
- Published in 2018. Research on individual differences in stress-cognition interactions and substance use continues.
- Original Title:
- Distress intolerance moderation of neurophysiological markers of response inhibition after induced stress: Relations with cannabis use disorder.
- Published In:
- Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors, 32(8), 944-955 (2018)
- Authors:
- Macatee, Richard J(3), Albanese, Brian J, Crane, Natania A(4), Okey, Sarah A, Cougle, Jesse R, Schmidt, Norman B
- Database ID:
- RTHC-01738
Evidence Hierarchy
A snapshot of a population at one point in time.
What do these levels mean? →Frequently Asked Questions
What is distress intolerance?
Distress intolerance is the perceived inability to withstand negative emotional states. People high in distress intolerance may feel overwhelmed by negative emotions and seek quick relief, which has been linked to substance use as a coping strategy.
Why is this finding surprising?
The prevailing theory predicted that stress would impair cognitive control in cannabis users with high distress intolerance, making them more vulnerable to problematic use. Instead, stress appeared to sharpen their conflict-monitoring abilities, suggesting an adaptive compensatory response.
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Cite This Study
https://rethinkthc.com/research/RTHC-01738APA
Macatee, Richard J; Albanese, Brian J; Crane, Natania A; Okey, Sarah A; Cougle, Jesse R; Schmidt, Norman B. (2018). Distress intolerance moderation of neurophysiological markers of response inhibition after induced stress: Relations with cannabis use disorder.. Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors, 32(8), 944-955. https://doi.org/10.1037/adb0000418
MLA
Macatee, Richard J, et al. "Distress intolerance moderation of neurophysiological markers of response inhibition after induced stress: Relations with cannabis use disorder.." Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors, 2018. https://doi.org/10.1037/adb0000418
RethinkTHC
RethinkTHC Research Database. "Distress intolerance moderation of neurophysiological marker..." RTHC-01738. Retrieved from https://rethinkthc.com/research/macatee-2018-distress-intolerance-moderation-of
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.