Associate Professor of Psychiatry @KeckMedUSC. Director of Behavioral Research @IASatUSC. Adjunct Scientist @RANDCorporation. Editor @ResearchMj’s #Cannabis
Los Angeles, CA
Joined June 2014
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We've updated our lab's website! The Prevention, Early Intervention, and Addictions Recovery Lab (the PEARL) is based in @USCPsychiatry at @KeckMedUSC.
Meet our team and learn about our current projects on the site. thepearl.usc.edu/
New paper led by @irelandshute featuring work conducted in The CANNEX. We explored how budtenders and young adults perceive and communicate harm reduction strategies. Findings highlight opportunities for harm reduction education in dispensaries. @IASatUSC
link.springer.com/article/10…
.@RSAposts will partner with @ResearchMJ to offer a track on alcohol and cannabis co-use on June 29th, 2027 during the RSA meeting. Details on submission will be posted soon.
researchmj.org/rsa2027
The first of many papers to come out of our BRAVO cohort with over 2,000 post-9/11 veterans (37% female, 66% non-White) shows behavioral health burden is substantial and unevenly distributed across sex and race/ethnicity. tandfonline.com/doi/full/10.…
We inadvertently left off an author on the final proofs of a published paper and @JSADJournal managing editor Paul Candon worked with us to publish a correction. I'm grateful to the journal and my co-authors for correcting this issue. pmc.ncbi.nlm.nih.gov/article…
Our new paper in @JAMANetworkOpen: Using 10 yrs of longitudinal data, we found sexual harassment/abuse in young adulthood was linked to anxiety & depression. Effects largest for sexual intimidation & most persistent for anxiety. @RANDCorporation @IASatUSC jamanetwork.com/journals/jam…
Early access to our published paper in BMC Psychology detailing the protocol for a randomized controlled trial evaluating telehealth delivery of the Brief Alcohol Screening and Intervention for College Students (BASICS) program. @UHouston @IASatUSC
link.springer.com/article/10…
Our new paper documents 12 month outcomes from a randomized controlled trial of a brief online intervention to reduce #alcohol misuse and promote treatment initiation among #veterans.
@IASatUSC @RANDCorporation @USCPsychiatry
pubmed.ncbi.nlm.nih.gov/4247…
Besides BuildClinical and Trialfacts, what vendors are researchers using successfully to help recruit participants online? Looking for affordable (like NIH R21/R34- level recruitment budgets) options that limit bots and false participants.
What a gift to spend the #RSMj2026 weekend with four of my favorite people — my trainees who have gone on to do amazing things in four of the top clinical psychology doctoral programs. @meganbrown1324, Reagan Fitzke, @keeganbuch, @irelandshute. @IASatUSC
Join us today at #RSMj2026 for a symposium featuring exciting updates to the Protective Behavioral Strategies for Marijuana Scale (PBSM).
Join us today at #RSMj2026 in Alvarado C for a symposium featuring studies published in our special issue of Cannabis on perinatal cannabis use.
Welcome Billy Hayes to the PEARL at USC! Our new project manager earned his B.A. in Psychology from @UCLA in 2025 and completed a minor in Education Studies. @KECKSchool_USC @USCPsychiatry @IASatUSC
thepearl.usc.edu/about/curre…
Eric Pedersen retweeted
We are thrilled to be hosting the 10th Annual RSMj Scientific Meeting in Albuquerque, which kicks off next Friday, July 17th. The Full Conference Program is now available on the conference website at researchmj.org/meeting
Eric Pedersen retweeted
The RSMj Trainee Program Committee invites all trainees (undergrad, postbacc, grad, postdoc) to join the #RSMj conference Discord for trainees. Meet other trainee attendees and connect about lodging, meetings, research collaborations, and resources discord.gg/U6FKfs3GYp
Our new @AddictionJrnl paper shows that living near a greater number of #cannabis dispensaries is associated with increased risk of cannabis use among young adults. Findings similar using government lists and web-scraped dispensary data. @IASatUSC onlinelibrary.wiley.com/doi/…
New paper from the PEARL at USC postdoc Neil Gleason in the Journal of Sex Research: Prevalence and Correlates of Condom Use Resistance Among Men Who Have Sex with Men Reporting Recent Heavy Alcohol Use and Condomless Sex. @IASatUSC tandfonline.com/doi/full/10.…
Join us tomorrow in Lone Star E (2nd Floor) at 1:20pm for our symposium on veteran behavioral health interventions at @RSAposts.
@StanfordMed @Mizzou @IASatUSC @MedUnivSC
