Clinical Neuropsychologists

Our on-staff clinical neuropsychologists—experts in brain functioning—are integral members of our interdisciplinary clinical teams, and are fundamental to the assessment and personalized plan development for each patient. They understand how the structure and function of the brain relates to specific psychological processes, like memory, critical thinking and judgment, and how those processes may affect behavior.

Our clinical neuropsychologists guide the assessment of progress, making sure each team member keeps the whole person in mind – including his or her interests, profession or work history, and hobbies—and adjusts the treatment plan for individual needs so that the person can thrive in the real world.

Please meet the neuropsychologists at Pate as they provide insight about what their profession means to them.


Mary Ellen Hayden, Ph.D., ABPP

“I work at Pate because our staff provides A+ treatment for all our patients—just as I would have required for my son, Ben, had he lived past his brain injury.”

Carlos Marquez de la Plata, Ph.D. Carlos Marquez de la Plata, Ph.D.

“It is an exciting time to be at Pate!  I am able to combine my love of research and technology with daily patient and family contact that allows me to see the incredible work that we do here.  As a Spanish-speaking neuropsychologist, I am part of Pate’s groundbreaking Spanish-language brain injury rehabilitation program.”

Matt Mordhorst, Ph.D

“The satisfaction from helping patients with brain injuries and their families understand their condition and improve their lives is immeasurable.  It really reaffirms my faith in the strength and tenacity of the human spirit.”

Kathryn Oden, Ph.D.

“I believe everyone is valuable no matter what problems he or she may be dealing with. Helping someone regain the kind of life they are happy to live as well as recognizing and achieving realistic goals is magical to me.”

Pat Plenger, Ph.D., ABPP

“Working at Pate Rehabilitation allows me to bring together two of my greatest passions: understanding how the brain functions and helping people who are in need. I have been fortunate to pursue these passions in the brain rehabilitation industry for the past 30 years, 21 of which have been with Pate.”

Dawn Toudouze, Ph.D.

“My job allows me the distinct pleasure of getting to know each individual’s personal story and becoming a part of one of the biggest challenges they will face in their lives. The sheer strength and determination that I observe every day as our patients regain function and independence leads me to a great sense of humility and joy.”