New Study Could Show How TikTok’s Algorithm Affects Youth Mental Health

Munmun De Choudhury

Meta CEO Mark Zuckerberg took the witness stand last week in Los Angeles County Superior Court to defend his company from accusations that social media harms children.

A lawsuit filed by a 20-year-old plaintiff alleges Instagram and other social media apps are designed to make young users addicted to their platforms.

Meanwhile, social media experts believe the algorithms that drive content on these platforms play a role in hooking users and keeping them scrolling for extensive periods of time.

A new study led by Georgia Tech might confirm this suspicion.

Using recently acquired data from more than 10,000 adolescent users, Munmun De Choudhury will audit TikTok’s recommendation algorithm and study its impact on young people’s behavior and mental health.

De Choudhury is leading a multi-institutional research team on a four-year, $1.7 million grant from the Huo Family Foundation.

“We hope to learn the different types of negative exposures that young people experience when using TikTok,” De Choudhury said. “This can help us characterize what they’re watching and build computational methods to understand the consumption behaviors of these participants and how they’re affected by the algorithm.”

De Choudhury, a professor in Georgia Tech’s School of Interactive Computing, is collaborating with Amy Orben, a professor at the University of Cambridge, and Homa Hosseinmardi, an assistant professor at UCLA, on the project.

Social media platforms have become increasingly reluctant to share their data in recent years, posing a challenge for researchers like De Choudhury.

“We can’t do the type of studies we did 10 years ago with X (formerly Twitter) because the API is much more restrictive,” she said. “There are limited ways to programmatically access people’s data now.

“We must go through a tedious, manual process to get around declining access to social media data. This data-gathering process is essential given the sensitive nature of mental health research. You want data that is shared with consent.”

Orben collected TikTok data from more than 10,000 young people in the UK who consented to provide their personal data archives in accordance with the European Union’s General Data Protection Regulation (GDPR).

The collected data includes watch histories, which De Choudhury said distinguishes this research from other social media studies that focus on what users post.

“We don’t understand passive social media consumption very well, so we hope to close that gap and learn what that looks like,” she said. “That could complement or contrast what we know about people’s active engagement on these platforms. Is what they’re consuming directly related to what they’re posting? How does passive consumption affect young people’s mental health?”

A clearer picture of how algorithm-based content affects young people could result in design interventions to minimize negative effects. De Choudhury said studying data from young people is critical because it’s not too late to steer them away from unhealthy behavioral patterns.

“Some of the earliest signs or symptoms of mental health conditions appear in adolescence,” she said. “If appropriate care and support are provided, maybe it’s possible to prevent these symptoms from becoming full-blown in the future.”

Beyond TikTok

What the research team learns about TikTok could also provide broader insight into other social media platforms.

TikTok has been influential in how social media platforms display video content. Competitors like Instagram and X modeled their video presentation after TikTok’s, which can easily lead to doomscrolling.

“Our hope is that our findings can be generalized, with the caveat the data we have is exclusively from TikTok,” De Choudhury said. “Other platforms have similar video-sharing and consumption features where the video automatically plays from one to the next. We hope what we learn from TikTok will be applicable to people’s activities elsewhere, though it will require future work beyond this project to draw concrete conclusions.”

Simulating Feeds with AI

De Choudhury said an additional part of the study will be using artificial intelligence (AI) to simulate video feeds.

In 2024, Hosseinmardi led a study at the University of Pennsylvania on YouTube’s recommendation algorithm and used bots that either followed or ignored the recommendations.

De Choudhury said they will use a similar method for TikTok.

“The feeds will be realistic but generated by AI to see the potential pathways to consumption rabbit holes,” she said. “This should give us some insight into how algorithms influence the negative and positive exposures people might be having on TikTok.”

Foundation Expands Reach

Based in the UK and established in 2009, the Huo Family Foundation supports community education initiatives in the UK, the U.S., and China.

The organization announced in January its launch of the Huo Family Foundation Science Programme. The new program is committing $17.6 million to fund 20 new multi-year research grants that explore the impact of digital technology on the brain development, social behavior, and mental health of young people.

“Digital technology is profoundly shaping childhood and young adulthood, yet there is limited causal evidence of its effects,” said Yan Huo, founder of the Huo Family Foundation, in a press release. “We are proud to support exceptional researchers advancing vital scientific understanding.”

 

Georgia Tech Launches Pilot Program to Support Rural Arts Organizations

Theater group on stage.

A production of the Perry Players, in Perry, Ga.

Beginning this March in Perry, Georgia, the Georgia Arts Innovation Network (GAIN) will support arts‑related nonprofits and small businesses in Perry, Houston County, and surrounding counties in Middle Georgia. The six‑month pilot is funded by a National Endowment for the Arts (NEA) Our Town grant and is the first EI² program dedicated specifically to the arts.

“Arts organizations contribute so much to the vibrancy of a community,” said Caley Landau, program manager for GAIN and marketing strategist at EI². “They help create a sense of place and provide the ‘something to do’ that small cities and towns want to offer residents, new workers, and prospective businesses. Our hope is to enhance the arts and cultural ecosystem in Middle Georgia by providing training and technical assistance to the organizations that produce art in the region.”

A Rural Community Already Investing in Placemaking

Perry was selected as the pilot location in part for its active downtown revitalization work and commitment to placemaking. Through the Georgia Economic Placemaking Collaborative, Perry city staff partnered with EI²’s Center for Economic Development Research to develop strategies for arts‑based community development.

“Working alongside the Georgia Tech team has been a wonderful experience,” said Alicia Hartley, downtown manager for the City of Perry. “We hope that participants walk away from the cohort inspired and empowered to activate their organizations in creative and meaningful ways.”

Listening First, Then Providing Targeted Support

The program will begin with a listening session to understand participating organizations’ needs. EI² will then design tailored workshops drawing from experts at Georgia Tech and beyond. Every other month, cohort members will meet for sessions on business practices, digital tools, operational efficiency, marketing, placemaking partnerships, and other areas that support long‑term sustainability.

“They sound like great ideas — murals, pop‑up exhibits, outdoor performances — but how do you really get down to the nuts and bolts of making them happen?” Landau said. “And how do you bring the right partners to the table? That’s what we’ll explore together.”

A Statewide Mission, Strengthened Through the Arts

As Georgia Tech’s economic development arm, EI² administers programs that support entrepreneurs, manufacturers, communities, and municipalities across the state and around the world.

“GAIN represents an important part of EI²’s comprehensive approach to economic development,” said David Bridges, vice president of EI². “It gives us another way to create impact in Georgia by applying our expertise to serve arts organizations that are vital to Georgia communities.”

Jason Freeman, associate vice provost for Georgia Tech Arts, noted that the pilot aligns with the Institute’s broader commitment to supporting arts, culture, and creativity statewide.

“Through GAIN, I’m excited to learn more about the arts ecosystem in Middle Georgia,” Freeman said. “The lessons we learn will inform both statewide collaborations and new initiatives emerging through our Creative Quarter innovation district on campus.”

Program Funding and Support

The pilot is funded through the NEA’s Our Town program, which supports projects integrating arts, culture, and design into community development. The Georgia Council for the Arts is partnering with EI² on cohort recruitment, curriculum development, and arts‑based placemaking strategies.

Recruitment has begun. Arts nonprofits and arts‑based businesses in Middle Georgia may apply at innovate.gatech.edu/gain/.

 
News Contact

MEDIA CONTACT
Péralte Paul
peralte@gatech.edu

GAIN PROGRAM CONTACT
Caley Landau
caley.landau@innovate.gatech.edu

Designing AI With People in the Loop: Lessons from Socio Technical Systems Deployments


SPEAKER: Rosemarie Santa Gonzalez, Research Scientist, H. Milton Stewart School of Industrial and Systems Engineering and NSF AI Institute for Collaborative Assistance and Responsive Interaction for Networked Groups (AI-CARING) at Georgia Tech.

Leanne West Named 2026 Innovator of the Year in Pediatric Health

Leanne West

Leanne West, chief engineer of pediatric technologies at Georgia Tech and a national leader in pediatric health innovation, has been honored as a 2026 Innovator of the Year in Pediatric Health by the Atlanta Business Chronicle and selected as one of Titan CEO’s 2026 Georgia Titan 100 Honorees. These recognitions celebrate West’s leadership and impact in pediatric health innovation at both the local and national level. In January, West was also named chief research and innovation officer at Shriners Children’s, a role that expands her longstanding commitment to pediatric innovation. 

For more than a decade, West has been instrumental in the partnership between Georgia Tech and Children’s Healthcare of Atlanta, working through the Pediatric Technology Center (PTC) to translate clinical needs into engineered solutions for children. In this role, she has worked alongside Children’s clinicians, nurses, and researchers to identify unmet needs, form multidisciplinary teams, and guide projects from early concepts through prototyping, validation, funding, and regulatory pathways. The Children’s Healthcare of Atlanta PTC established Atlanta as a nationally recognized hub for pediatric technology innovation enabling clinician-driven research, accelerating translational projects, and fostering a culture in which engineering solutions are shaped directly by real clinical experience. 

In 2019, West began building a relationship with Shriners, working to understand their most pressing clinical needs. She then connected clinicians with researchers at Georgia Tech, Emory University, and Kennesaw State University to foster collaborations focused on real-world clinical challenges. She also supported teams with promising prototypes by helping them navigate national funding opportunities and pathways at the Federal Drug Administration (FDA), accelerating the transition from lab discoveries to patient care.  

Over time, this steady engagement evolved into a strong research partnership. In June 2025, Shriners announced they are joining the robust pediatric innovation ecosystem in Atlanta by establishing the Shriners Children’s Research Institute (SCRI). SCRI will be co-located with Georgia Tech as the anchor tenant at Science Square. This investment will be transformational for the future of pediatric research and innovation in the state of Georgia. 

“What excites me most is what we can accomplish together when we combine our strengths to align around a children-first mindset to improve the healthcare of children everywhere,” said West. “Kids will benefit in ways no one organization could achieve alone.” 

West’s leadership in pediatric innovation doesn’t stop there. In November 2025, she consolidated three major gatherings into the first International Pediatric Healthcare Innovation Summit, combining the Pediatric Innovation Day, the International Society for Pediatric Innovation’s (iSPI) biennial PEDS2040 event, and the joint meeting of the FDA-funded Pediatric Device Consortia. The Summit highlighted the work of Children’s Healthcare of Atlanta, bringing together more than 150 representatives from children’s hospitals, startups, venture capitalists, clinicians, patients, and leaders from across the Georgia innovation ecosystem, strengthening the region’s global presence in pediatric health innovation. 

As president of the International Children’s Advisory Network (iCAN), West continues to elevate the voices of young people with chronic and rare conditions and their caregivers. Under her leadership, iCAN partners with industry, regulators, and the FDA to ensure pediatric patients are included in device and drug development, clinical trials, healthcare education, and regulatory conversations. She also champions opportunities that train and inspire youth and early career professionals to pursue roles across healthcare and life sciences — from clinicians and innovators to public health leaders and patient advocates. 

West served as an invited speaker at the 2025 World Health Organization’s World Children’s Health Day on the Importance of Clinical Trials for the Safety of Children, and at the FDA’s meeting on the Implementation of the Best Pharmaceuticals for Children Act and Pediatric Research Equity Act. She continues to contribute nationally through service on the Medical Device Innovation Consortium’s (MDIC) NEST executive committee to advance use of real-world evidence in regulatory submissions, particularly for pediatric devices, and the MDIC Patient Value committee. In addition, she serves on the iSPI executive team, the Patient Focused Medicines Development board, the Pediatric Trials Network steering committee, and as a judge for MedTech Innovator. 

West’s awards and new role reflect the cumulative impact of more than a decade of leadership, partnership-building, and translational work across the worldwide pediatric ecosystem. West and her fellow honorees will be officially recognized at the 2026 Health Care Champion Awards on March 19 and at the Titan 100 Awards on May 7.

 
News Contact

Laurie Haigh
Institute Communications

Introduction to "The IPaT Way" - A People-Centered Approach to Providing Technical Solutions

Pictured clockwise from upper left: Michael Best, Maribeth Coleman, Clint Zeagler, and Noah Posner.
Please RSVP if attending >>

Introduction to "The IPaT Way" - A People-Centered Approach to Providing Technical Solutions

Yuanzhi Tang Named Executive Director of the Strategic Energy Institute

Yuanzhi Tang

Yuanzhi Tang

Georgia Tech has appointed Yuanzhi Tang as executive director of the Strategic Energy Institute (SEI), effective Feb. 1.

Tang will lead the strategic vision, interdisciplinary research efforts, and internal and external partnerships at SEI, strengthening connections across Georgia Tech’s Colleges, Interdisciplinary Research Institutes (IRI), the Georgia Tech Research Institute (GTRI), and external partners to advance energy-related initiatives.

Founded in 2004, SEI is one of Georgia Tech’s IRIs and serves as a campuswide hub for energy research, education, and engagement.

Tang is the Georgia Power Professor in the School of Earth and Atmospheric Sciences. Her research and leadership focus on advancing secure, circular, and sustainable energy systems by integrating Earth, environmental, biological, materials, and sustainability sciences and innovations. She previously served as an initiative lead on sustainable resources at SEI as well as the associate director for interdisciplinary research at the Brook Byers Institute for Sustainable Systems.

“Professor Tang brings a strong record of research impact, leadership of complex initiatives, and a collaborative approach that will help elevate Georgia Tech’s energy research enterprise,” said Julia Kubanek, vice president for Interdisciplinary Research at Georgia Tech. “She brings deep expertise in fundamental Earth and environmental science, including water, soil, and energy research, while also leading state and regional partnerships in emerging, applied areas such as critical minerals. Most importantly, she is community-minded with excellent listening and consensus-building skills.”

As executive director, Tang will develop and communicate a unifying vision to advance interdisciplinary energy research and strategic thought leadership at Georgia Tech, integrating expertise across engineering, sciences, computing, business, design, economics, policy, and the humanities.

Tang is also the founding director of the Center for Critical Mineral Solutions and leads a multidisciplinary coalition spanning three University System of Georgia institutions. The coalition connects research, industry, and policy to build Georgia’s critical minerals innovation ecosystem, while driving resource advancement, workforce development, and economic impact.

“I'm honored to serve as the executive director of SEI. Georgia Tech’s energy research and the people behind it have always inspired me. I’m eager to listen, learn, and work alongside our community,” said Tang. “SEI connects research excellence with real-world impact, and I look forward to partnering across campus, industry, government, and communities to translate breakthrough ideas into solutions that strengthen energy security, reliability, and affordability.”

About the Strategic Energy Institute

The Strategic Energy Institute (SEI) serves as a system integrator for more than 1,000 Georgia Tech researchers working across the entire energy value chain. SEI brings together expertise to address complex energy challenges, from commercializing scalable technologies to informing long-term energy strategy and policy. Through research, education, community building, resource development, and thought leadership, SEI mobilizes Georgia Tech’s collective strengths to advance reliable, affordable, and lower-carbon energy solutions for a growing global demand.

 
News Contact

Priya Devarajan || Communications Program Manager
Strategic Energy Institute

Conversations@TechSquare: Beyond Pilots: Innovations, Institutions, and Impact in a Post-Aid World


Drawing on experience across international NGOs, government partnerships, UN agencies, philanthropy, and technology-enabled innovation, this session will explore why so many promising ideas struggle to survive once donor funding ends. Rather than focusing on tools alone, we’ll examine the institutional, governance, and market conditions that determine whether innovation endures—or quietly disappears.

Confronting the Roadblocks in Medical Technology Innovation

A panel of five speakers sits on tall stools at the front of a classroom, participating in a moderated discussion. The moderator on the left holds papers while addressing the group. A large presentation slide behind the panel displays names and academic titles. Audience members are partially visible in the foreground, and tables, chairs, and a water bottle are arranged throughout the room.

Georgia Tech’s Institute for Matter and Systems (IMS) hosted its second Boundaries and Breakthroughs panel on Jan. 27, bringing together leading clinicians, engineers, and data experts to examine why promising medical technologies often fail to translate into clinical practice.

Moderated by IMS Executive Director Eric Vogel, the panel explored how innovation, regulation, economics and clinical realities intersect to shape the future of medical devices. 

The panel featured John Duke, physician and director of the Center for Health Analytics and Informatics at Georgia Tech Research Institute; Matthew Flavin, assistant professor in the School of Electrical and Computer Engineering; HyunJoo Oh, assistant professor in the schools of Industrial Design and Interactive Computing; and Lokesh Guglani, pediatric pulmonologist and clinician-researcher at Children’s Healthcare of Atlanta. 

Vogel opened the event by highlighting the gap between technological novelty and real-world medical adoption. 

“About 75% of medical device start-ups never achieve commercial success or make it to market, and some industry estimates push this higher,” Vogel said. “Even those that reach the market often fail to gain meaningful adoption. This may be because technologists optimize for platforms five or 10 years out and are rewarded by novelty, whereas clinicians demand reliability, interpretability, and outcomes that hold up with real patients, real workflows, and real liability.”

Throughout the discussion, panelists examined the tension between rapid innovation and clinical safety, noting that the level of invasiveness often determines how bold developers can be.

“We must remember that in medicine—and especially when we're dealing with human lives—there's a significant asymmetry of the harm that could be done,” said Guglani. “Even a small change or an oversight at the design level of a medical device can have significant downstream repercussions for patients and create liability for institutions and providers.”

Flavin and Duke added that excessive conservatism, particularly around non-invasive wearable, can also slow potentially life-changing advancements. 

All panelists agreed that breakthrough technology alone is not enough to ensure clinical adoption. Usability, workflow fit, and time efficiency often determine whether clinicians adopt a device. Tools that require lengthy calibration or add to a clinician’s already tight schedule rarely succeed. Even when a technology integrates well, reimbursement barriers can prevent adoption. 

 “A lot of technologies come out, but then if the clinic is using them and is not being reimbursed for the time spent, that creates a bottleneck,” said Guglani.

Economic constraints also shape who benefits from innovation. Children with rare diseases, stroke survivors, and other small or heterogeneous patient groups often struggle to attract investors, even when their needs are urgent.

The panelists also discussed the dual role of regulatory and manufacturing standards. Good Manufacturing Practice (GMP) requirements ensures consistent, safe production, but force teams to lock designs earlier than ideal, adding cost and slowing iteration. These requirements protect patients but also function as an economic filter for many early-stage technologies.

The conversation then turned to data, AI, and the education of future innovators. Despite massive amounts of health data, many clinically important areas remain data‑scarce. Wearable devices, such as smart watches, may help close these gaps, but AI models remain limited by the quality of input data. 

When asked about preparing the next generation of MedTech innovators, panelists emphasized the importance of “interface literacy” or the ability to collaborate across disciplinary boundaries and understand how design decisions cascade into real clinical environments.  

“You really do have to be able to be interdisciplinary,” said Duke. “Now of course what makes things go is not often the knowledge of the domain, but the person’s role or connectivity into the system.”

Vogel closed by emphasizing that successful medical technology development requires “ongoing, honest collaboration” across fields. The Boundaries and Breakthroughs series will continue that mission in February with a panel on the future of the electric grid.

 
News Contact

Amelia Neumeister | Communications Program Manager

The Institute for Matter and Systems

Research as the Practice of Freedom


SPEAKER: Stacy Branham, Associate Professor of Informatics at the University of California, Irvine

Georgia Insurance Claims Database Provides Health Care Cost Comparisons

Georgia residents now have a new way to compare the estimated costs paid for a large variety of health care services in the state, thanks to a resource created by the Georgia All-Payer Claims Database. (iStock photo)

Georgia residents now have a new way to compare the estimated costs paid for a large variety of health care services in the state, thanks to a resource created by the Georgia All-Payer Claims Database. (iStock photo)

Georgia residents now have a new way to compare the estimated costs paid for a large variety of health care services in the state, thanks to a searchable “shop for care” resource launched as part of the Georgia All-Payer Claims Database (GA APCD).

The Georgia APCD Cost Comparison Tool (apcd.georgia.gov/cost-comparison-tool) contains information on more than 200 different medical procedures ranging from cardiac stress tests and childbirth to knee replacement and colonoscopies. The resource provides information on the median cost paid for the procedures statewide, along with information on what individual medical facilities and professional providers have been paid for each type of procedure. 

For each procedure, the tool identifies medical facility providers nearest to the consumer and includes facility ratings collected by the Centers for Medicare & Medicaid Services (CMS). For each facility providing a specific service, the comparison data includes the median cost for the procedure and the range of costs that were paid. Costs can be filtered by payer category, including commercial, Medicare, and Medicaid. While that data is understandably incomplete and includes caveats, developers of the new service say it provides a much-needed resource for Georgians facing a decision on a costly medical procedure.

“In health care, there are a lot of factors that can drive cost and it’s not always a straightforward equation, so it’s worth doing the research,” said Dr. Jon Duke, an M.D. and principal research scientist in the Georgia Tech Research Institute’s (GTRI) Health Emerging and Advanced Technologies Division, which administers the APCD for the state of Georgia. “This is really just one part of health care decision-making, and it will help patients be more proactive advocates for themselves when considering potential options for care.”

Dr. Duke is also a faculty member in Georgia Tech's Institute for People and Technology. You can read the full article published by the Georgia Tech Research Institute here.