Christian Webb, PhD
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christianwebb.bsky.social
Christian Webb, PhD
@christianwebb.bsky.social
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
Join us at the Technology in Psychiatry Summit (TIPS) #TIPS2025! Dec 11–12 | Virtual | 11 AM–5 PM ET

💡 Topics:
• AI-driven mental health apps
• LLMs in dementia caregiving
• Digital Navigators bridging tech + care
• AI for eating-disorder treatment
...& much more

🔗 tips.societyconference.com/v2/
November 7, 2025 at 9:23 PM
Reposted by Christian Webb, PhD
Check out this write-up of a recent DPN article from @bbrfoundation.bsky.social highlighting BBRF awardees @christianwebb.bsky.social, @erika-forbes.bsky.social, and @diegopizzagalli.bsky.social. Congrats!

bbrfoundation.org/content/smar...
October 27, 2025 at 2:13 PM
Thanks to @bbrfoundation.bsky.social for highlighting our lab's study (led by @hadarfisher.bsky.social & @nigeljaffe.bsky.social) using📱smartphone sensors + LLM-derived text ratings to track behavioral activation and symptom change in teens with anhedonia.
bbrfoundation.org/content/smar...
Smartphone Sensors + ChatGPT Successfully Tracked & Predicted Symptoms in Adolescents with Anhedonia | Brain & Behavior Research Foundation
The ubiquity of smartphones and the rapid advance and widespread public adoption of “AI” tools like ChatGPT (especially among the young) have raised hopes among some researchers that such technologies...
bbrfoundation.org
October 24, 2025 at 8:11 PM
📢 New large study of ~1.5 million patients in NHS Talking Therapies finds that teens/young adults (ages 16-24) had 17-26% *lower* odds of reliably improving vs 25-65 year-olds. Time to rethink youth-centred mental-health delivery?
🔗 tinyurl.com/532y6v67
October 22, 2025 at 2:07 PM
Great work Hadar!
Now out in NPP – Digital Psychiatry and Neuroscience! 📱🧠

Can LLMs and smartphone sensing help us track therapy progress in real time?
🆕 study by @hadarfisher.bsky.social @nigeljaffe.bsky.social @diegopizzagalli.bsky.social @christianwebb.bsky.social tested whether smartphone mobility sensing & LLM ratings of text can track behavioral activation in teens to boost engagement in rewarding activities

www.nature.com/articles/s44...
October 17, 2025 at 9:08 PM
Reposted by Christian Webb, PhD
Now out in NPP – Digital Psychiatry and Neuroscience! 📱🧠

Can LLMs and smartphone sensing help us track therapy progress in real time?
🆕 study by @hadarfisher.bsky.social @nigeljaffe.bsky.social @diegopizzagalli.bsky.social @christianwebb.bsky.social tested whether smartphone mobility sensing & LLM ratings of text can track behavioral activation in teens to boost engagement in rewarding activities

www.nature.com/articles/s44...
Client Challenge
www.nature.com
October 17, 2025 at 9:07 PM
Reposted by Christian Webb, PhD
🆕 study by @hadarfisher.bsky.social @nigeljaffe.bsky.social @diegopizzagalli.bsky.social @christianwebb.bsky.social tested whether smartphone mobility sensing & LLM ratings of text can track behavioral activation in teens to boost engagement in rewarding activities

www.nature.com/articles/s44...
Client Challenge
www.nature.com
October 14, 2025 at 2:45 PM
Grateful to @willemkuyken.bsky.social for being such a gracious host and insightful guide at Oxford — and to Jamie Delgadillo for the same at King’s College London. Inspiring conversations, wonderful campuses, and a fantastic trip all around. 🇬🇧🎓
October 12, 2025 at 10:13 AM
Reposted by Christian Webb, PhD
"Dr. Balfour Mount, who coined the term 'palliative care' and whose profound empathy helped revolutionize health-care in North America, died peacefully on Sept. 25 at the palliative care unit that bears his name." www.cbc.ca/news/canada/...
Balfour Mount, who revolutionized end-of-life care, died at palliative unit named in his honour | CBC News
Mount devoted his life to caring for others and alleviating suffering. In interviews, his family and colleagues remembered him as both deeply compassionate and as a fierce advocate for the humanity of...
www.cbc.ca
October 7, 2025 at 5:33 PM
@mcleanhospital.bsky.social Technology in Psychiatry Summit #TIPS returns this year Dec 11-12. We have exciting keynotes lined up, including Drs. Pattie Maes (MIT Media Lab), Isaac Galatzer-Levy (Google DeepMind), and Derrick Hull (Slingshot AI). Submissions are now open. See below for info.
September 16, 2025 at 1:48 PM
📱EMA is increasingly used in intervention studies to acquire a more fine-grained and ecologically valid assessment of change. But EMA is relatively burdensome. What's the added value? We tried to address this question in our new paper now out @jmirpub.bsky.social www.jmir.org/2025/1/e69297 1/n
Ecological Momentary Assessment as a Measure of Intervention Change: Evaluation in 4 Digital Mental Health Trials
Background: Ecological momentary assessment (EMA) is increasingly being incorporated into intervention studies to acquire a more fine-grained and ecologically valid assessment of change. The added uti...
www.jmir.org
September 12, 2025 at 8:26 PM
There is still time to submit your symposium, workshop, or poster for the 2025 Technology in Psychiatry Summit (TIPS). Submission deadline is Oct 9. TIPS is taking place virtually as a 2-day meeting Dec 11th and 12th, 2025. #TIPS #technologyinpsychiatry

Link: techinpsych.org
Technology in Psychiatry Summit | Supporting Mental Health in the Digital Age
techinpsych.org
September 12, 2025 at 12:23 AM
Reposted by Christian Webb, PhD
🚨 New research alert

We applied machine learning to the large MYRIAD trial (84 schools and 8,376 UK teens) to ask:

👉 Which adolescents benefit most from mindfulness delivered in schools?

Bottom line: One-size-fits-all doesn’t work.

Paper link: tinyurl.com/vvpvfunh

1/n
tinyurl.com
August 22, 2025 at 8:11 PM
🚨 New research alert

We applied machine learning to the large MYRIAD trial (84 schools and 8,376 UK teens) to ask:

👉 Which adolescents benefit most from mindfulness delivered in schools?

Bottom line: One-size-fits-all doesn’t work.

Paper link: tinyurl.com/vvpvfunh

1/n
tinyurl.com
August 22, 2025 at 8:11 PM
Reposted by Christian Webb, PhD
My lab has an open post-doc position!

We will begin reviewing applications as they come in.

The post-doc will work with a vibrant research team at Penn State in the Department of Psychology and the Child Study Center.

psu.wd1.myworkdayjobs.com/PSU_Academic...

1/3
Postdoctoral Research Scholar, The Cognition, Affect, and Temperament Lab, College of the Liberal Arts, Department of Psychology-2
APPLICATION INSTRUCTIONS: CURRENT PENN STATE EMPLOYEE (faculty, staff, technical service, or student), please login to Workday to complete the internal application process. Please do not apply here, a...
psu.wd1.myworkdayjobs.com
August 22, 2025 at 8:06 PM
Excellent new paper spearheaded by lab member @hadarfisher.bsky.social finding that emotion rigidity (assessed via EMA) in youth predicts future depressive symptoms over a 2 year follow-up.
🚨New paper on emotion rigidity as a risk factor for future depression out in BRAT!
Thank you to @christianwebb.bsky.social @diegopizzagalli.bsky.social and the awesome teddylab team @nigeljaffe.bsky.social, KristinaPidvirny, and Anna Tierney 🙌

Free 50d access: authors.elsevier.com/a/1lRqe1KMdl...
authors.elsevier.com
July 17, 2025 at 7:11 PM
Reposted by Christian Webb, PhD
For those interested in the target paper, see here for the link (it's open access).

We use a much larger sample than is typical, that is clinically heterogeneous, and examines associations bw passive sensing and broad domains of psychopathology

jamanetwork.com/journals/jam...
July 4, 2025 at 4:03 PM
Reposted by Christian Webb, PhD
Check out our thoughts on the growing use of passive sensing for digital phenotyping. In this commentary, we reflect on excellent work by @whitneyringwald.bsky.social et al., who use a large, clinically heterogeneous sample to examine assoc. bw passive sensing and domains of psychopathology.
July 3, 2025 at 6:56 PM
Reposted by Christian Webb, PhD
Thoughtful summary of the promise and limitations of passive sensing >>
July 3, 2025 at 6:40 PM
🧠📱Excited to share our invited commentary in @jamanetworkopen.com on the promise and pitfalls of using smartphones (and wearables) to track psychopathology w/
@hadarfisher.bsky.social and linked to excellent paper by
@whitneyringwald.bsky.social, @aidangcw.bsky.social & team. tinyurl.com/5n8z4r6e
Tracking Psychopathology Dimensions Through Passive Smartphone Sensing
Mental health researchers are increasingly using passively collected data from smartphones and wearable devices (eg, smartwatches, fitness trackers, and smart rings) to continuously and unobtrusively ...
tinyurl.com
July 3, 2025 at 6:18 PM
Reposted by Christian Webb, PhD
And @christianwebb.bsky.social on predictions of negative affect states from mobile phenotyping data and machine learning models.
"Borrowing" information from other subjects' models improved accuracy. #SPRKrakow2025
June 27, 2025 at 10:37 AM
Reposted by Christian Webb, PhD
📣 Hey #SPRKrakow2025! If you're into EMA and clinical practice, don’t miss our panel Enhancing Clinical Practice with EMA — happening today at 11:30 in Aula Duża A.
With @christianwebb.bsky.social , @kopf-beck.bsky.social, @odedbein.bsky.social & Jessica Fritz
June 27, 2025 at 6:03 AM
Reposted by Christian Webb, PhD
If you’re heading to @sprofficial.bsky.social meeting in Krakow, check out our panels on tech, personalization, & precision in psychotherapy!

📱 Enhancing Clinical Practice w/ EMA (Fri, 11:30am)
📊 Innovations in Personalization/Precision in Therapy (Sat, 2pm)
🧠 Neuroscience in Therapy (Sat, 3:15pm)
June 26, 2025 at 3:08 PM
Reposted by Christian Webb, PhD
If you’re heading to @sprofficial.bsky.social meeting in Krakow, check out our panels on tech, personalization, & precision in psychotherapy!

📱 Enhancing Clinical Practice w/ EMA (Fri, 11:30am)
📊 Innovations in Personalization/Precision in Therapy (Sat, 2pm)
🧠 Neuroscience in Therapy (Sat, 3:15pm)
June 24, 2025 at 4:30 PM
If you’re heading to @sprofficial.bsky.social meeting in Krakow, check out our panels on tech, personalization, & precision in psychotherapy!

📱 Enhancing Clinical Practice w/ EMA (Fri, 11:30am)
📊 Innovations in Personalization/Precision in Therapy (Sat, 2pm)
🧠 Neuroscience in Therapy (Sat, 3:15pm)
June 24, 2025 at 4:30 PM