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Looking for information about the Postdoctoral Residency at Mary Free Bed? Click here. 

Below is information about the psychologists at Mary Free Bed Rehabilitation Hospital.


Luke Anderson, PhD

Dr. Anderson joined Mary Free Bed in 2015 as an adult postdoctoral resident. He completed his undergraduate degree at Azusa Pacific University and earned his MA and PhD in clinical psychology with a neuropsychology concentration from Fuller Theological Seminary Graduate School of Psychology. He completed his pre-doctoral internship at Hamilton Health Sciences/McMaster University.

Dr. Anderson has clinical experience working with a wide range of patients with various neurological conditions, including traumatic brain injury, stroke, brain tumor, multiple sclerosis, epilepsy and neurodegenerative disorders. He also has provided inpatient and outpatient psychotherapy services to individuals with general psychiatric issues and adjustment-related difficulties following medical injuries.


Elizabeth Blackbird, PsyD, ABPN, ABPP(RP)

Dr. Blackbird, who joined Mary Free Bed in 2001, is board-certified in neuropsychology and rehabilitation psychology. She is a member of Division 22 of the American Psychological Association. She has special interests in patients and families dealing with spinal cord injury, stroke, dementia, or traumatic brain injury.

Dr. Blackbird is a graduate of Illinois School of Professional Psychology. She interned at Illinois Masonic Medical Center in Chicago and completed a fellowship at Magee Rehabilitation Hospital and Hahnemann University Hospital in Philadelphia.


Jacobus Donders, PhD, ABPP

Dr. Donders is chief psychologist at Mary Free Bed. He is board-certified by the American Board of Professional Psychology in clinical neuropsychology, rehabilitation psychology and pediatric clinical neuropsychology. He is the associate editor of the journals Child Neuropsychology and Archives of Clinical Neuropsychology. He also serves on the editorial boards of several other journals, and on the board of directors of the American Board of Clinical Neuropsychology. He has more than 100 publications in peer-reviewed journals.

His main research interests include construct and criterion validity of neuropsychological test instruments and prediction of outcome after traumatic brain injury. Dr. Donders is a fellow of the National Academy of Neuropsychology and of Divisions 40 (society for clinical neuropsychology) and 22 (rehabilitation psychology) of the American Psychological Association.

He obtained his doctorate from the University of Windsor. He joined Mary Free Bed in 1988.


Roger Erickson, PhD

Dr. Erickson joined Mary Free Bed in 2016. He earned a doctorate in clinical psychology from Fuller Theological Seminary and completed three years of specialized post-doctoral training. He first completed a one-year pediatric psychology post-doctoral fellowship through the University of Arkansas for Medical Sciences, a training program that included working with patients with chronic medical conditions and developmental disabilities, and specialized interdisciplinary training through the Leadership and Education in Neurodevelopmental Disabilities program. He also completed a two-year fellowship in pediatric rehabilitation psychology and neuropsychology through the University of Michigan Health System, Department of Physical Medicine and Rehabilitation.

Dr. Erickson is on the inpatient pediatric rehabilitation team and outpatient day rehabilitation program, helping children and their families cope and adjust to hospitalization and medical illness and injury.


Kelly Green, PhD

Dr. Greene earned her doctorate in clinical psychology from The Chicago School of Professional Psychology.  She completed a two-year post-doctoral residency at Mary Free Bed in 2002.  She is board-certified by the American Board of Professional Psychology in clinical neuropsychology and pediatric clinical neuropsychology.  She worked in a variety of settings with children and adults before returning to Mary Free Bed in 2016.

Dr. Greene is working in Northern Michigan in collaboration with Munson Medical Center to provide neuropsychological assessments for children and adults with a broad range of neurological and neuropsychiatric disorders.


Timothy Gruppen, PsyD

Dr. Gruppen joined Mary Free Bed in 2013. He completed his undergraduate degree at Calvin College and earned his MA and PsyD in clinical psychology from Wheaton College. He completed his pre-doctoral internship at Meier Clinics in Wheaton, Ill. He began working in the rehabilitation field at Methodist Rehabilitation Center in Jackson, Miss., during his post-doctoral training.

Dr. Gruppen enjoys working with people with a wide variety of rehabilitation concerns, including stroke, spinal cord injury, brain injury, concussion and oncology. He is a member of Division 22 of the American Psychological Association.


Catherine Kaneti, PsyD

Dr. Kaneti has worked in the rehabilitation field since 1997. She holds degrees from the University of Illinois and Chicago School of Professional Psychology. She completed her internship at Oak Forest Hospital in Oak Forest, Ill., and her post-doctoral residency at Marianjoy Rehabilitation Hospital in Wheaton, Ill. She has worked with people who have experienced head injuries, spinal cord injuries, strokes and a variety of other neurological conditions.

She has worked at Mary Free Bed since 2005.


Eddie O’Connor, PhD

Edmund A. O’Connor, Jr., PhD, is the sports psychologist for Mary Free Bed’s Performance Excellence Center and a certified consultant and fellow for the Association for Applied Sport Psychology. He is a member of the United States Olympic Committee Sport Psychology and Mental Training Registry.

Dr. O’Connor received his PhD in clinical psychology from Illinois Institute of Technology and completed a post-doctoral fellowship with the Pain & Rehabilitation Clinic of Chicago.

Dr. O’Connor joined the staff in 2000.


Carrie Strong, PsyD, ABPP

Dr. Strong obtained her doctorate from Florida Institute of Technology in 2003 and her two-year post-doctoral residency at Mary Free Bed in 2005 and stayed on as staff. Dr. Strong is board-certified in clinical neuropsychology by the American Board of Professional Psychology. Her primary clinical interests include neuropsychological assessment of patients from adolescent to older adulthood, and she is one of the consulting neuropsychologists for the post-concussion clinic.

Dr. Strong has published a number of articles and book chapters in the area of assessment and treatment of traumatic brain injury.


Jessica Tsou, PsyD

Dr. Tsou joined Mary Free Bed Rehabilitation Hospital as a staff psychologist in 2016. She received her undergraduate degree from the University of Illinois Urbana-Champaign, and her doctoral degree in clinical psychology from Nova Southeastern University. She completed her pre-doctoral internship at Broward Health Medical Center, and her post-doctoral fellowship in neurorehabilitation psychology at the University of Kansas Medical Center.

Her interests include assessment and treatment of adults with traumatic brain injury, stroke, spinal cord injury and medical complexities.


Kathryn Wilson, PhD, ABPP

Dr. Wilson obtained her PhD from the University of Nebraska-Lincoln in 2009 and her internship at Oregon Health Science University’s Child Development and Rehabilitation Center, a LEND program. She completed her post-doctoral residency at Mary Free Bed in 2011. Dr. Wilson worked with the pediatric acute and rehabilitation teams at Wake Med in Raleigh, N.C., before returning to Mary Free Bed in 2017.

Her primary interests include the neuropsychological assessment of children and adolescents with neurological and developmental concerns, such as traumatic brain injury, concussion, spina bifida and sickle cell disease, as well as working with underserved populations.