Bryan Yung
Guestbook
EEG Feature Classification

Making machine-aided diagnosis explainable to doctors.

Timeline

2024

Role

Research Intern

Team

Neural Systems Lab

Tools

Python, scikit-learn, NumPy, Discrete Wavelet Transform

Frontotemporal dementia, a specific type of dementia, is extremely hard for doctors to diagnose. A highly accurate model means little if doctors cannot interpret or trust its decisions. Under the guidance of Dr. Shihab Shamma and Maryam Shaghaghi at UMD, I built a system that explains its decisions in plain terms, showing which brain patterns matter and why, to help doctors make more better & more confident diagnoses.

For this research, I was recognized by Regeneron Pharmaceuticals as a STS Top 300 Scholar.

Brain activity recordings

Brain activity recordings from patients. Each line shows electrical signals from different parts of the brain.

I analyzed brain activity patterns from different regions and frequencies. The challenge was figuring out which patterns actually help with diagnosis versus which ones just add confusion. By testing each pattern individually, I identified the most reliable indicators that doctors can trust and understand.

Brain activity patterns
Signal variation patterns
Signal distribution patterns

Different measurements of brain activity across regions. Each shows unique patterns that help identify the disease.

Before optimization
After optimization

Visual comparison of patient groups. Left: messy and hard to separate. Right: clear groupings after removing unhelpful data.