People

Reasoning Lab

We are a cognitive neuroscience lab studying the mental processes involved in reasoning, decision-making, and memory. We study the relationship between brain and behavior in healthy individuals and people who have psychiatric or neurological impairments. We use behavioral measurements, cognitive interventions, and neuroimaging techniques in our research. We are located at the Center for BrainHealth at The University of Texas at Dallas and the Department of Psychiatry at the University of Texas Southwestern Medical Center.

Faculty

Daniel Krawczyk, PhD

Dan Krawczyk, PhD

Principal Investigator
Email: [email protected]

View Dr. Krawczyk’s CV
View Dr. Krawczyk’s faculty profile at UT Dallas
View Dr. Krawczyk’s faculty profile at UT Southwestern


Postdoctoral Fellows

Kihwan Han

Kihwan Han
Email: [email protected]

Dr. Kihwan Han works in Dr. Daniel Krawczyk’s lab where he analyzes MRI-based neuroimaging data of individuals with traumatic brain injury (TBI) and individuals receiving rehabilitative interventions for TBI. Dr. Han integrates these neuroimaging variables with their neuro-psychological measures.

Prior to joining the Center for BrainHealth, he was a postdoctoral research associate at Washington University in St. Louis for two years after he received his PhD in Electrical Engineering from Purdue University in 2011. Dr. Han’s research interests include characterizing the brain networks of individuals with TBI and other diseases and disorders as well as utilizing advanced MRI techniques to develop novel methodologies for MRI analysis.

Dr. Han’s website


Graduate Students

Zhengsi Chang

Zhengsi Chang
PhD Student — Psychological Sciences Program — UT Dallas
Email: [email protected]


Richard Cole

Richard Cole
PhD Student — Psychological Sciences Program — UT Dallas
Email: [email protected]

Richard Cole received his BA in Psychology from the University of Arizona and his MS in Applied Psychology from Walden University. He joined the Krawczyk Reasoning Lab in Fall 2016 after completing 8 years in the U.S. Army.

Richard’s interests include TBI/rehabilitative techniques, decision-making and emotions, and therapeutic methods. His goal is to receive a Doctorate in Clinical or Counseling Psychology and continue working with Veterans and researching topics that affect the military community.

His current research investigates the link between decision making and cognitive and emotional bias — in the context of perspective-taking and affective priming. Additionally, he is assisting with the Expedition Project — a remotely-based cognitive intervention, to better reach Veterans who struggle with TBI-related symptoms.


Matt Kmiecik

Matt Kmiecik
PhD Student — Cognition and Neuroscience Program — UT Dallas
Email: [email protected]


David Martinez

David Martinez
PhD Student — Psychological Sciences Program — UT Dallas
Email: [email protected]

David Martinez works in Dr. Krawczyk’s lab where he assists research on cognitive performance, behavioral reports, clinical assessments, and neuroimaging data on healthy individuals and those with mild-to-moderate traumatic brain injury (TBI). David has also co-designed an analogical reasoning task to better assess reasoning performance in both healthy and clinical populations.

Before joining the Center for BrainHealth, David worked in clinical neuropsychology and neuroimaging research at the University of Texas Health Science Center in San Antonio. David has a Master of Science in applied cognition and neuroscience from The University of Texas at Dallas and a Bachelor of Arts in psychology with a minor in history from Baylor University. David’s research interests include the exploration of brain structure, cognitive changes, and improvements following cognitive intervention in mid-to-moderate TBI, along with finding better techniques to identify neuropsychological deficits in clinical populations.


Linda Nguyen

Linda Nguyen
PhD Student — Cognition and Neuroscience Program — UT Dallas
Email: [email protected]


Adam Teed

Adam Teed
PhD Student — Cognition and Neuroscience Program — UT Dallas
Email: [email protected]


Research Staff

Tiffani Jantz

Tiffani Jantz
Research Coordinator: UT Dallas Center for BrainHealth
Email: [email protected]


Jameson Miller

Jameson Miller
Research Coordinator: UT Dallas Center for BrainHealth
Email: [email protected]


Jelena Rakic

Jelena Rakic
Research Coordinator: UT Dallas Center for BrainHealth
Email: [email protected]


Barry Rodgers

Barry Rodgers
Research Coordinator: UT Dallas Center for BrainHealth
Email: [email protected]

Barry is a member or the Traumatic Brain Injury research team and is responsible for data analysis and management. Prior to coming to the Center for BrainHealth he worked in the Office of Institutional Access and Equity at Southern Methodist University as the Data Administration Analyst. Before that he spent 12 years working in the private sector as a Programmer and Data Analyst in the commercial building industry. Barry holds a Master of Science degree in experimental psychology and his research interests include learning, memory, reasoning, social cognition, and statistics.


Lab Alumni

Don Kretz

Don Kretz, PhD
PhD Student 2010-2015
Webpage


Kevin Murch

Kevin Murch, PhD
PhD Student 2007-2010
Currently a Forensic Neuropsychologist


Ehsan Shokri-Kojori

Ehsan Shokri-Kojori, PhD
PhD Student 2008-2014
Currently a Postdoctoral Fellow at the National Institutes of Health


Leanne Young

Leanne Young, PhD
PhD Student 2013-2016
Currently the Executive Director of the Brain Performance Institute in Dallas