-Proposed a reflexive gaze-based authentication system in VR, which utilizes novel 3D visual stimuli in VR to elicit reflexive saccades and pupil diameter changes.-Proposed a signal processing algorithm and a GNN-based feature extractor to extract user-specific features from the eye responses.-Conducted user evaluations with 25 participants.-Published the research work at MobileHCI 2024 as the first author and won the Honorable Mention Award.

-Developed a real-time respiration rate detection system using PIR sensors on the Arduino platform and conducted pilot test.-Explored heart rate detection capabilities of the system, creating a stepper motor-based test bed to simulate heartbeats and analyze the PIR sensor’s accuracy across different projected areas.