I’m an assistant professor of law at the University of Georgia School of Law. My research focuses on on criminal law (especially sentencing), evidence, and the intersection of law and neuroscience. Within those domains, most of my work focuses on how legal decisionmakers (like judges, jurors, or prosecutors) exercise discretion and make complex judgements. Most of my work is empirical, and informed by my background Ph.D. training in cognitive neuroscience.
I teach classes in criminal law, evidence, sentencing, and a seminar called law and the mind (focusing on the interseciton of law, psychology, and neuroscience). My teaching is heavily informed by my research, and all of my classes involve exploring what social science can teach us about how legal systems should operate.
Before becoming a professor, I spent about six years as a federal prosecutor in Detroit, where I led over 100 grand jury investigations, briefed and argued dozens of appeals before the Sixth Circuit, and first-charied multiple jury trials. I also worked closely with my office’s “Restart” program, designed to provide alternatives to incarceration and make criminal justice more equitable. That experience heavily informs my research, which seeks practical ways to reform the criminal justice system, especially in sentencing.
I earned my bachelor’s degree with highest honors and distinction from the University of Michigan in 2006 and my J.D. and Ph.D. (in psychology with emphasis in cognitive neuroscience) from Northwestern University in 2013. I graduated magna cum laude from the School of Law, where I was editor-in-chief of the Northwestern University Law Review and was inducted into the Order of the Coif.
Research
My research focuses on on criminal law (especially sentencing), evidence, and the intersection of law and neuroscience. Within those domains, most of my work focuses on how legal decisionmakers (like judges, jurors, or prosecutors) exercise discretion and make complex judgements.
I employ a wide variety of methods in my work. In addition to more traditional work using doctrinal and descriptive methods, I quantitatively and qualitatively code legal texts, such as judicial opinions, briefs, and transcripts; I conduct experiments using both behavioral psychological methods and neuroimaging like EEG and fMRI; and I analyze publicly available databases, such as those made available by the U.S. Courts and U.S. Sentencing Commission.
I’m also actively engaged in service work that builds on my research. I'm a member of the Systematic Content Analysis of Litigation Events (SCALES) project, working to develop tools to allow large-scale analysis of criminal court records. I'm the chair-elect of the AALS section on criminal procedure. I also co-founded a group at the University of Georgia to share and build interdisciplinary scholarship on crime, law, and criminal justice.
Publications
Equality in Sentencing Mitigation
Fordham Law Review (forthcoming 2025)
- Selected for Harvard/Yale/Stanford Junior Faculty Forum (competitive entry)
- Selected for Duke Law Empirical Criminal Law Roundtable (competitive entry)
Bridging the Criminal Law/Psychological Science Information Gap
in Law &: The Compendium on Interdisciplinary Legal Studies (forthcoming 2025)
Shocking Sentences
100 Indiana Law Journal 137 (2024)
Modern Sentencing Mitigation
116 Northwestern University Law Review 1395 (2022)
- Winner of 2023 UGA Law Faculty Research Award for public law
- Cited & discussed in Sease v. Comm'r of Correction, 219 Conn. App. 504 (2023) (finding trial counsel ineffective for failing to present mental health mitigation)
Neuroscience and Mental Competency: Current Uses and Future Potential
81 Albany Law Review 995 (2018) (invited symposium contribution)
The Difficulty of Discerning the Effect of Neuroscience: a Peer Commentary of Shen et al. 2018
85 Journal of Law and the Biosciences 208 (2018)
Admissibility and Constitutional Issues of the Concealed Information Test in American Courts: An Update
in Detecting Concealed Information and Deception: Recent Updates (J. Peter Rosenfeld ed.) (2018)
Jury Simulation Goals
in The Psychology of Juries: Current Knowledge and a Research Agenda for the Future (with Jonathan J. Koehler) (2017)
The Use of Neuroscience Evidence in Criminal Proceedings
3 Journal of Law and the Biosciences 330 (2016)
An Empirical Research Agenda for the Forensic Sciences
106 Journal of Criminal Law and Criminology 1 (with Jonathan J. Koehler) (2016)
Decision Making and the Law: Truth Barriers
in The Wiley-Blackwell Handbook of Judgment and Decision Making (with Jonathan J. Koehler) (2016)
Applications of Neuroscience in Criminal Law: Legal and Methodological Issues
15 Current Neurology and Neuroscience Reports 513 (2015)
The Hidden Daubert Factor: How Judges Use Consideration of Error Rates in Assessing Scientific Evidence
2014 Wisconsin Law Review 1063 (with Shari Seidman Diamond) (2014)
Detecting Knowledge of Incidentally Acquired, Real-World Memories Using a P300-Based Concealed Information Test
25 Psychological Science 1994 (with J. Peter Rosenfeld) (2014)
Does Criminal Diversion Contribute to the Vanishing Civil Trial?
62 DePaul Law Review 442 (with Shari Seidman Diamond) (2013) (invited Clifford symposium contribution)
Review of Recent Studies and Issues Regarding the P300-Based Complex Trial Protocol for Detection of Concealed Information
90 International Journal of Psychophysiology 118 (with J. Peter Rosenfeld, Xiaoqing Hu, Elena Labkovsky, & Michael R. Winograd) (2013)
P900: a Putative Novel ERP Component in Response to the Signal to a Participant That “No Specific Responses are Needed on this Trial!”
38 Applied Psychophysiology and Biofeedback 121 (with J. Peter Rosenfeld, Elena Labkovsky, Michael Winograd, Alexander Sokolovsky, Jeff Weisharr, & Tim Ullman) (2013)
Liar, Liar, Jury’s the Trier? The Future of Neuroscience-Based Credibility Assessment and the Court
106 Northwestern University Law Review 1451 (note) (2012)
Damage Anchors on Real Juries
8 Journal of Empirical Legal Studies 148 (with Shari Seidman Diamond, Mary R. Rose, & Beth Murphy) (2011)
A Novel Countermeasure Against the Reaction Time Index of Countermeasure Use in the P300-Based Complex Trial Protocol for Detection of Concealed Information
81 International Journal of Psychophysiology 60 (with Alexander Sokolovsky, Jessica Rothenberg, Elena Labkovsky, & J. Peter Rosenfeld) (2011)
A Mock Terrorism Application of the P300-Based Concealed Information Test
48 Psychophysiology 149 (with J. Peter Rosenfeld) (2011)
- Discussed in Joshua Dressler & Stephen Garvey, Criminal Law Cases and Materials 135 (9th Ed. 2022).
Lying in the Scanner: Covert Countermeasures Disrupt Deception Detection by Functional Magnetic Resonance Imaging
55 NeuroImage 312 (with Giorgio Ganis, J. Peter Rosenfeld, Rogier A. Kievit, & Haline E. Schendan) (2011)
Countermeasure Mechanisms in a P300-Based Concealed Information Test
47 Psychophysiology 57 (with J. Peter Rosenfeld) (2010)
Assigned Versus Random, Countermeasure-Like Responses in the P300-Based Complex Trial Protocol for Detection of Deception: Task Demand Effects
34 Applied Psychophysiology and Biofeedback 209 (with Alexander Haynes, Michael R. Winograd, Jordan Brown, & J. Peter Rosenfeld) (2009)
The Effects of Asymmetric vs.Symmetric Probability of Targets Following Probe and Irrelevant Stimuli in the Complex Trial Protocol for Detection of Concealed Information with P300
98 Physiology and Behavior 10 (with J. Peter Rosenfeld, Monica Tang, Michael Winograd, & Elena Labkovsky) (2009)
Federal Sentencing Law and Policy
Spring 2025 [Syllabus]
- Email: john.meixner@uga.edu
- Office: University of Georgia School of Law, 205 Hirsch Hall, Athens, GA 30602
- GitHub: github.com/johnmeixner
- LinkedIn: linkedin.com/in/john-meixner-76728644