Texas Tech University

TTNI Staff

place holder

Eric Walden, Ph.D.

Dr. Eric Walden is the director of data science programs and is the James C. Wetherbe Professor in the Rawls College of Business. He earned his doctorate in information and decision sciences from the University of Minnesota's Carlson School of Management. Walden's research uses a variety of neuroscientific tools – including functional and structural magnetic resonance imaging, electro-encephalogram and genetic analysis – to understand how people search for information.

The TTNI is a multi-user neuroimaging facility that promotes cutting-edge research among faculty and graduate students of Texas Tech and the Texas Tech University Health Sciences Center. The institute provides researchers with brain and body imaging technologies and techniques. One of Walden's duties will be to expand the institute's scale and research opportunities.

Experimental Sciences Building
Room 150
(806) 834-1925


Sunanda Mitra, D.Sc.

Sunanda Mitra, D.Sc.
Director Emeritus

Dr. Sunanda Mitra was named interim director of TTNI in October 2013. Sunanda is a Paul Whitfield Horn professor in the Department of Electrical and Computer Engineering, and director and founder of the Computer Vision & Image Analysis Laboratory (CVIAL) at Texas Tech.

The purpose of CVIAL is to develop innovative models and algorithms for robust signal/image analysis for diverse image modalities, including MRI/fMRI/DTI data, multi-view X-ray, and multi-spectral and hyper-spectral data. CVIAL also is involved in state-of-the-art modeling of wavelet domain data compression for multimedia and medical imaging data as well as compressed sensing.

Mitra received her Bachelor and Master of Science in physics from Calcutta University in India, and received her Doctor of Science in physics from the University of Marburg in Germany. She has been affiliated with Texas Tech and Texas Tech University Health Sciences Center since 1969, when she was a research associate in the Department of Electrical Engineering. She was named a Horn professor in 2005.

Experimental Sciences Building
Room 215 
(806) 834-8074

Kasey Rieken

Kasey Rieken
Section Supervisor

Kasey Rieken serves as section supervisor at the Texas Tech Neuroimaging Institute. In this role he provides a knowledge MRI technologist of 10 years. Before coming to Texas Tech, he spent 10 years in the radiology field, working in the medical community where he specialized in MRI CT and X-ray. Rieken earned his Technology degree from Covenant School of Radiology.

Experimental Sciences Building, Room 152
(806) 834-8349

Barbara Bowley

Timothy Kelley
Research Assistant

Tim Kelley serves as the data analyst at the Texas Tech Neuroimaging Institute. He primarily assists researchers interested in conducting fMRI research but with limited knowledge of the fMRI process. Tim collaborates with researchers at many stages of each project: experimental design, programming experimental paradigm, assisting in running the experiment, analyzing data, and interpreting/writing results for publication or grants. Tim is a Ph.D. student in the Psychological Sciences department earning a degree in Cognition and Cognitive Neuroscience.

Experimental Sciences Building, Room 154
(806) 742-3400

Texas Tech Neuroimaging Institute