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Research: How minds reason, fail, and learn

I study how humans and machines reason, and how biology can teach AI to reason better. The work sits where computational neuroscience, foundation models, and healthcare meet: not benchmarking for its own sake, but building systems that solve real problems where accuracy, safety, and trust matter.

30+Publications
80+Open-weight releases
55K+Downloads
2Patents

Lab

Divergence Lab

Interactive work on reasoning, refusal, and faithfulness in language models: the gap between what a model reports and what it does.

Open Divergence Lab

Thread 01

Foundation-model safety and adversarial evaluation

How do frontier models fail when you push on them? Replicating the TEMPEST multi-turn attack against ten frontier models from eight vendors, with more than 97,000 API queries, found attack success of 96 to 100 percent on six of them, and showed that extended reasoning cut success from 97 to 42 percent. Companion work tests guardrail robustness, instruction adherence across 256 models, and a 1,554-prompt consensus-labeled bank for measuring how coding models respond to malicious-code requests.

01

Multi-turn adversarial attacks at frontier scale

02

Guardrail robustness and instruction adherence

03

Code safety: separating executable weapons from security knowledge

Thread 02

Chain-of-thought faithfulness

Does a model's stated reasoning match how it actually reached its answer? This thread measures divergence between thinking tokens and final answers in open-weight reasoning models, and shows that the answer depends heavily on how faithfulness is measured, including the sensitivity of the classifier used to judge it.

01

Thinking tokens versus answers in open-weight reasoning models

02

Classifier sensitivity in faithfulness evaluation

03

Abliteration methods compared across architectures

Chance favors the prepared mind.

Louis Pasteur, lecture at the University of Lille, 1854

Thread 03

Clinical AI, fairness, and safe deployment

AI used in healthcare has to be accurate, fair, and private at the same time. Work here includes a fairness audit of gender bias in language-model emergency-department triage, multi-model benchmarks for clinical-trial data extraction, specialized clinical-cardiology embeddings, and a systematic evaluation showing that vision-token masking alone cannot prevent protected-health-information leakage in medical document OCR.

01

Fairness auditing in emergency-department triage

02

Clinical-trial data extraction across model vendors

03

PHI privacy in medical document processing

Thread 04

Computational neuroscience and bioinformatics

The earlier work asks the same question of biological minds: machine learning and transcranial current stimulation in Parkinson's disease, genomic and brain-imaging features for Alzheimer's diagnosis, and the Minimotif Miner series in Nucleic Acids Research on short functional peptide motifs and their role in neurodegenerative disease.

01

Neuromodulation and motor learning in Parkinson's disease

02

Multimodal AI for Alzheimer's diagnosis

03

Minimotifs: a million peptide motifs and counting

Richard Young outdoors, helping Eeyore reattach his tail
We are all here to help each other.

Selected publications

Read the work

Twelve of thirty-plus. The full list, with abstracts and conference presentations, is on the CV.

  1. 01
    Replicating TEMPEST at Scale: Multi-Turn Adversarial Attacks Against Trillion-Parameter Frontier Models

    arXiv · 2025

  2. 02
    Evaluating the Robustness of Large Language Model Safety Guardrails Against Adversarial Attacks

    arXiv · 2025

  3. 03
    When Models Can't Follow: Testing Instruction Adherence Across 256 LLMs

    arXiv · 2025

  4. 04
    Code as a Weapon: A Consensus-Labeled Prompt Bank for Measuring Coding-Model Compliance with Malicious-Code Requests

    arXiv · 2026

  5. 05
    Why Models Know But Don't Say: Chain-of-Thought Faithfulness Divergence Between Thinking Tokens and Answers in Open-Weight Reasoning Models

    arXiv · 2026

  6. 06
    Lie to Me: How Faithful Is Chain-of-Thought Reasoning in Reasoning Models?

    arXiv · 2026

  7. 07
    EQUITRIAGE: A Fairness Audit of Gender Bias in LLM-Based Emergency Department Triage

    arXiv · 2026

  8. 08
    From API to Action: A Multi-Model Comparison of OpenAI, Anthropic, Google, and Meta LLMs for Clinical Trial Data Extraction

    Bioengineering 13(7), 773 · 2026

  9. 09
    Vision Token Masking Alone Cannot Prevent PHI Leakage in Medical Document OCR: A Systematic Evaluation

    arXiv · 2025

  10. 10
    Benchmarking Multiple Large Language Models for Automated Clinical Trial Data Extraction in Aging Research

    Algorithms 18(5), 296 · 2025

  11. 11
    Development of an AI Approach That Employs Genomic and Brain-Imaging Features to Improve the Diagnosis of Alzheimer's Disease

    Alzheimer's & Dementia 18 · 2022

  12. 12
    Minimotif Miner 4: A Million Peptide Minimotifs and Counting

    Nucleic Acids Research 46(D1) · 2018

Books and open source

Beyond the papers

Author of The Neuroscience of Artificial Intelligence: A Journey into the Minds of Machines and Humans and Healthcare Analytics and AI: Building Systems That Actually Work, and technical editor of Data Engineering with Alteryx. More than 80 open-weight model releases and datasets are on Hugging Face, with code on GitHub.

01

Two books on AI, neuroscience, and healthcare systems

02

80+ open-weight models, 55,000+ downloads

03

Two patents on human-in-the-loop clinical prediction

Work with me

Collaboration runs through DeepNeuro.

Research collaborations, advisory roles, applied AI projects, and speaking engagements run through DeepNeuro, my independent research practice. Students and UNLV colleagues can reach me directly at ryoung@unlv.edu.