Driving-themed cannabis risk messages captured the most attention and arousal

Among 50 young adults, psychophysiological measures showed driving-themed cannabis risk messages produced the strongest cognitive and emotional responses compared to messages about cognitive ability or health harms.

Leshner, Glenn et al.·Drug and alcohol dependence·2021·Preliminary EvidenceCross-Sectional
RTHC-03288Cross SectionalPreliminary Evidence2021RETHINKTHC RESEARCH DATABASErethinkthc.com/research

Quick Facts

Study Type
Cross-Sectional
Evidence
Preliminary Evidence
Sample
N=50

What This Study Found

Driving-themed prevention messages from two different campaigns consistently produced the greatest cognitive resource allocation, highest arousal, and most positive emotional responses, as measured by heart rate, skin conductance, and facial action coding.

Key Numbers

50 participants; 6 messages per participant; 2 campaigns x 3 risk themes (cognitive ability, driving, health harms); psychophysiological and self-report measures

How They Did This

Fifty young adult marijuana users and non-users viewed six prevention messages (three from each of two campaigns, covering three risk types). Researchers measured real-time psychophysiological responses including heart rate, skin conductance, and facial action coding, alongside self-report measures.

Why This Research Matters

Most cannabis prevention messaging research relies on self-reports, which may not capture actual cognitive and emotional processing. This study used physiological measures to reveal which message types actually grab attention and generate emotional engagement.

The Bigger Picture

Understanding which message frames actually engage audiences at a physiological level could help public health campaigns spend limited budgets more effectively, moving beyond self-reported preferences to measurable cognitive impact.

What This Study Doesn't Tell Us

Very small sample of 50 participants. Lab setting may not reflect real-world message exposure. Cannot determine whether greater physiological engagement translates to actual behavior change.

Questions This Raises

  • ?Do these physiological responses predict actual changes in cannabis use behavior?
  • ?Would different risk frames work better for different age groups?
  • ?How do these findings apply to social media-based campaigns?

Trust & Context

Key Stat:
Driving-themed messages outperformed on all psychophysiological measures
Evidence Grade:
Small sample size and lab setting, though the use of objective physiological measures adds methodological rigor.
Study Age:
Published in 2021.
Original Title:
Cognitive and affective responses to marijuana prevention and educational messaging.
Published In:
Drug and alcohol dependence, 225, 108788 (2021)
Database ID:
RTHC-03288

Evidence Hierarchy

Meta-Analysis / Systematic Review
Randomized Controlled Trial
Cohort / Case-Control
Cross-Sectional / ObservationalSnapshot without intervening
This study
Case Report / Animal Study

A snapshot of a population at one point in time.

What do these levels mean? →

Frequently Asked Questions

Why were driving messages more effective?

The study did not determine why, but driving-themed messages consistently produced the greatest cognitive engagement and arousal across both campaigns and regardless of whether participants used marijuana.

Did self-reports match the physiological data?

Not consistently. Self-report measures showed a less consistent pattern, suggesting people may not accurately report their own cognitive and emotional responses to health messages.

Read More on RethinkTHC

Cite This Study

RTHC-03288·https://rethinkthc.com/research/RTHC-03288

APA

Leshner, Glenn; Stevens, Elise M; Cohn, Amy M; Kim, Seunghyun; Kim, Narae; Wagener, Theodore L; Villanti, Andrea C. (2021). Cognitive and affective responses to marijuana prevention and educational messaging.. Drug and alcohol dependence, 225, 108788. https://doi.org/10.1016/j.drugalcdep.2021.108788

MLA

Leshner, Glenn, et al. "Cognitive and affective responses to marijuana prevention and educational messaging.." Drug and alcohol dependence, 2021. https://doi.org/10.1016/j.drugalcdep.2021.108788

RethinkTHC

RethinkTHC Research Database. "Cognitive and affective responses to marijuana prevention an..." RTHC-03288. Retrieved from https://rethinkthc.com/research/leshner-2021-cognitive-and-affective-responses

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.