Prev Sci February 2018 PMID 28620722

Testing the Amotivational Syndrome: Marijuana Use Longitudinally Predicts Lower Self-Efficacy Even After Controlling for Demographics, Personality, and Alcohol and Cigarette Use.

Andrew Lac, Jeremy W Luk

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Mentions

22
Peak: 2 in Jul 2025
across 4 sources since Sep 2020

Extended reach

123,016
potential audience

Total likes

3,597

Video views

114,029

Mentions per month

Sep 2020 – Aug 2025

Where it's discussed

  • Facebook11 posts
  • X / Twitter7 posts
  • YouTube2 videos
  • News2 articles

AI synopsis

What people are saying

Discussions reflect a balanced tone, with posts like '@SalvMattera' highlighting the clarity of the data on motivation, while others like '@xxxraul999' explore the causality of marijuana on amotivational syndrome, illustrating active engagement and interest with phrases such as 'misuse rob people of motivation' and efforts to verify information online. The tone varies from cautious acknowledgment to inquisitiveness, shaping a thoughtful overall stance.

AgreementModerate agreement

Most discussions acknowledge the study's results or agree that marijuana use is linked to decreased motivation and self-efficacy.

InterestModerate interest

Participants show moderate interest, often noting the mixed or nuanced data and engaging with the study's implications.

EngagementModerate engagement

Comments include references to controlling for other factors, personal investigations, and interpretations, indicating active engagement.

ImpactNeutral impact

The collective response suggests some awareness of potential implications, but overall impact appears moderate, with some skepticism about results.

Abstract in brief

  • The study investigates whether marijuana use leads to decreased motivation and self-efficacy in college students, supporting the idea of the "marijuana amotivational syndrome."
  • Researchers found that marijuana use predicted lower initiative and persistence over time, even after accounting for other factors like personality traits, demographics, and use of alcohol or tobacco.
  • The results suggest that marijuana, unlike alcohol or tobacco, may directly cause reductions in motivation-related qualities, emphasizing the importance of considering marijuana use in prevention efforts and future studies.]

Top posts

Most liked on X and Bluesky
Dr Murphy WeightLoss
@TakeWeightOffMD · X

@SalvMattera @rossiadam https://t.co/7uGzAXWkOo The data are mixed about this. But they are clear. Misuse (daily use included) Rob people of motivation aka “self efficacy”

Feb 15, 2024 · 1 like · 6,926 followers View post →
chupy
@Chupy35 · X

@Oscar0811 https://t.co/ZQ4V9Ofq3a

Nov 20, 2020 · 1 like · 915 followers View post →
B Happy 要开心
@BHappy3 · X

@GuntherEagleman Testing the Amotivational Syndrome: Marijuana Use Longitudinally Predicts Lower Self-Efficacy Even After Controlling for Demographics, Personality, and Alcohol and Cigarette Use https://t.co/2mMAOtX842

Jul 29, 2025 · 1 like · 1 share · 646 followers View post →
Raghu Ganesh
@RaghuGanesh7 · X

@xxxraul999 @KunalDhankhar8 @Shehla_Rashid He is right though about the link to marijuana use being more a cause for amotivational syndrome based on this sample study controlled also for alcohol and cigarettes (https://t.co/dQyFujACnC). I admit I went online trying to look for information that would prove him wrong

Sep 27, 2020 · 1 like · 279 followers View post →
Wrangel's Top Guy
@diesiudicii · X

@Chef_Andy_ @TrueIdahoNews @clintforidaho Many more like this: https://t.co/2foyRvjhm2.

Aug 11, 2025 · 1 like · 71 followers View post →
Evan kate
@hub_tv59265 · X

RT @BHappy3: @GuntherEagleman Testing the Amotivational Syndrome: Marijuana Use Longitudinally Predicts Lower Self-Efficacy Even After Con…

Jul 29, 2025 · 1 share · 76 followers View post →

All mentions

Wrangel's Top Guy
@diesiudicii · X

@Chef_Andy_ @TrueIdahoNews @clintforidaho Many more like this: https://t.co/2foyRvjhm2.

Aug 11, 2025 · 1 like · 71 followers View post →
Wrangel's Top Guy
@diesiudicii · X

@TrueIdahoNews @Chef_Andy_ @clintforidaho Here’s the study for ya: Lac A, Luk JW. Testing the Amotivational Syndrome: https://t.co/2foyRvjhm2.

Aug 11, 2025 · 71 followers View post →
Evan kate
@hub_tv59265 · X

RT @BHappy3: @GuntherEagleman Testing the Amotivational Syndrome: Marijuana Use Longitudinally Predicts Lower Self-Efficacy Even After Con…

Jul 29, 2025 · 1 share · 76 followers View post →
B Happy 要开心
@BHappy3 · X

@GuntherEagleman Testing the Amotivational Syndrome: Marijuana Use Longitudinally Predicts Lower Self-Efficacy Even After Controlling for Demographics, Personality, and Alcohol and Cigarette Use https://t.co/2mMAOtX842

Jul 29, 2025 · 1 like · 1 share · 646 followers View post →
Dr Murphy WeightLoss
@TakeWeightOffMD · X

@SalvMattera @rossiadam https://t.co/7uGzAXWkOo The data are mixed about this. But they are clear. Misuse (daily use included) Rob people of motivation aka “self efficacy”

Feb 15, 2024 · 1 like · 6,926 followers View post →
chupy
@Chupy35 · X

@Oscar0811 https://t.co/ZQ4V9Ofq3a

Nov 20, 2020 · 1 like · 915 followers View post →
Raghu Ganesh
@RaghuGanesh7 · X

@xxxraul999 @KunalDhankhar8 @Shehla_Rashid He is right though about the link to marijuana use being more a cause for amotivational syndrome based on this sample study controlled also for alcohol and cigarettes (https://t.co/dQyFujACnC). I admit I went online trying to look for information that would prove him wrong

Sep 27, 2020 · 1 like · 279 followers View post →