I am an assistant professor in the Department of Psychiatry at Columbia University working with Dr. Randy Auerbach and Dr. David Pagliaccio. My research focuses on understanding how digital tools can help identify adolescents at risk for depression and suicide. I use smartphone-based surveys, passive sensing, and data from social media and AI chatbot platforms to model within-person changes in symptoms and behavior. My research has several key goals, including:

• Identifying how adolescents use suicide-related language online and when this language signals short-term risk

• Detecting interpersonal risk and resilience factors on social media, particularly online victimization and social support

• Characterizing adolescents’ mental health-related disclosures to AI chatbots and evaluating the extent to which chatbot responses align with clinical best practices

By understanding how youth use technology and what they are exposed to online, this work aims to inform clinical interventions and policies to protect vulnerable youth and prevent suicide.

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