Associate Professor | Harvard Medical School
Co-Director | Center for Depression, Anxiety, & Stress Research
Director | Treatment & Etiology of Depression in Youth Lab | McLean Hospital | www.WebbsLab.com
McGill & UPenn alum | Canadian in Boston
Christian Webb, PhD
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Using causal ML and data from ~90,000 NHS patients, we found that only 31% received the treatment the algorithm identified as optimal. Recovery rates were 11 percentage points higher among patients with the strongest recommendations who received their indicated treatment.
lnkd.in/e5Muc4BJ
Our lab will be presenting at APS in Barcelona #APS26BCN later this week. If you’re interested in digital phenotyping, passive sensing, adaptive interventions, and emotion dynamics in adolescent depression, come by our symposia and say hi. @hadarfisher.bsky.social and I will be there
The CANDLab at Yale is hiring a new full-time research assistant! Excellent opportunity to gain post-bacc experience before applying to PhD programs in child and adolescent clinical psychology and neuroscience. 🧠 candlab.yale.edu/sites/default/files/downloads/YaleCANDLab_RA_2026.pdf
candlab.yale.edu
This Deep Dive covers work by @hadarfisher.bsky.social @nigeljaffe.bsky.social @diegopizzagalli.bsky.social @christianwebb.bsky.social exploring whether smartphone passive sensors & LLMs can track activation in adolescents w/ anhedonia receiving behavioral activation therapy
youtu.be/K1Lo50QBcQM?...
We're raising money (matched dollar for dollar!) to support paid research experiences for underrepresented students in our department at McGill. No amount too small to show support for science training these days....
crowdfunding.mcgill.ca/ui/main/p/pr...
Christian Webb, PhD
Christian Webb, PhD
Dylan Gee, PhD
I dug into NSDUH data on depression in U.S. teens (12-17) and made the below figure. Rates increased far more sharply for girls than boys, peaking around COVID before modest declines. Shaded region = % with depression receiving mental health treatment. Both depression and unmet need remain high.
NPP-Digital Psychiatry and Neuroscience (DPN)
Honored to have been part of the Science of Change symposium at URI, celebrating the life and legacy of Dr. James Prochaska. I shared our work using AI and machine learning for real-time detection and scalable interventions in adolescent depression via smartphones and wearables.
Some evidence of decreasing depression rates among adolescents from the latest National Survey on Drug Use and Health. 60% of teens with depression reported receiving mental health treatment (31% taking meds) www.samhsa.gov/data/sites/d...
Christian Webb, PhD
Congrats to our lab postdoc Poorvesh Dongre on his IH ’26 (ACM Interactive Health) acceptance in Porto 🇵🇹
EmBot: wearable-triggered stress detection + LLM support, shaped by mental health experts.
Preprint: arxiv.org/abs/2604.04915
#DigitalMentalHealth #LLM #Wearables
Anna Weinberg
Christian Webb, PhD
Christian Webb, PhD
For some reason, the new report of the National Survey on Drug Use and Health is geo-locked, and cannot be accessed from the Netherlands (or, I assume, from anywhere outside the US). As US based VPN solves the issue.
Any thoughts why this would be the case?
nsduhweb.rti.org/respweb/home...
