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Portfolio

Research

PRAXIS is a research group first and an events organization second. These projects define the intellectual agenda. Rather than a static list, projects are mapped below across our two core dimensions: Clinical Translation and Computational Complexity.

Clinical Translation →
Computational Complexity →
01Selected Node

Vocal Biomarkers — crossbenching anhedonia

IdeaAnalysisPreprintReviewPublishedActive

Extracting acoustic and semantic biomarkers of anhedonia from spontaneous speech using ClinicalWhisper. By crossbenching anhedonia against computational phenotypes, the next step is integrating large language models with reinforcement learning to model reward-prediction errors in vocal flat affect.

LLM + RLAudio processingClinical data
03

Presentations

Computational Psychiatry Conference — Cross-Modal Benchmarking of Acoustic Prosody and Ventral Striatal BOLD for Depression-Related Anhedonia Classification

Presented · Jul 2026 · Computational Psychiatry Conference

Cross-Modal Benchmarking of Acoustic Prosody and Ventral Striatal BOLD for Depression-Related Anhedonia Classification

Peter Zhou. First-author poster benchmarking a 15-minute voice recording against a $500+ fMRI scan for anhedonia classification.

Undergraduate Symposium — The Dopaminergic Voice: Comparing Acoustic Prosody and Ventral Striatal Activation as Biomarkers for Anhedonia

Presented · Apr 2026 · Undergraduate Symposium

The Dopaminergic Voice: Comparing Acoustic Prosody and Ventral Striatal Activation as Biomarkers for Anhedonia

Peter Zhou, Dora Xiang, Lily Wu. Poster session on cross-modal biomarkers of anhedonia — voice versus fMRI.

NeuroTech @ Berkeley — The Dopaminergic Voice: Comparing Acoustic Prosody and Ventral Striatal Activation as Biomarkers for Anhedonia

Presented · May 2026 · NeuroTech @ Berkeley

The Dopaminergic Voice: Comparing Acoustic Prosody and Ventral Striatal Activation as Biomarkers for Anhedonia

Dora Xiang, Lily Wu. Poster session at NeuroTech @ Berkeley.