Psychology and Neuropsychology Staff
Laurie Nash, Ph.D., ABPP-RP
Director of Psychology and Neuropsychology
Laurie Nash, Ph.D., ABPP-RP, is a board certified rehabilitation psychologist and clinical neuropsychologist. She joined Shepherd Center in 2009, where she completed her two-year postdoctoral fellowship in clinical neuropsychology. Dr. Nash received her B.A. from Bemidji State University in Minnesota, her M.A. in counseling and community psychology from Marist College in Poughkeepsie, NY, and her Ph.D. in clinical psychology from the Albert Einstein College of Medicine of Yeshiva University in the Bronx, NY. She completed her internship at the Mount Sinai School of Medicine in New York City. She has several years of experience in research, cardiovascular disease, traumatic brain injury and spinal cord injury rehabilitation. She is a member of the American Board of Rehabilitation Psychology (ABRP). She is also a member of the American Psychological Association (APA), Divisions 22 and 40, and received the Early Career Practice Award from Division 22 in 2016. Dr. Nash also maintains a private practice in Atlanta.
Chelsea Day, Psy.D.
Neuropsychology Supervisor, Acquired Brain Injury
Dr. Chelsea Day is a clinical neuropsychologist and the neuropsychology supervisor for the inpatient Brain Injury Rehabilitation Program. Dr. Day joined the Shepherd Center team in 2010, during which time she completed her two-year postdoctoral fellowship in clinical neuropsychology. She serves as the neuropsychologist for three teams in the inpatient acquired brain injury unit, where she conducts neuropsychological evaluations, monitors neurobehavioral presentation, develops and implements behavioral management strategies, and provides psychoeducation regarding acquired brain injury to patients and families. She also conducts outpatient neuropsychological evaluations in the outpatient division of neuropsychology. Dr. Day serves as one of the supervisors for Shepherd Center's APPCN clinical neuropsychology fellowship program. She greatly values a multidisciplinary approach to rehabilitation interventions.
Gary A. James, Psy.D.
Neuropsychology Supervisor, Shepherd Pathways
Gary A. James, Psy.D., joined Shepherd Center in 2004. He is the neuropsychology supervisor at Shepherd Pathways, Shepherd’s post-acute brain injury program, as well as the Complex Concussion Clinic and the SHARE Military Initiative. Dr. James graduated with a Bachelor of Science in psychology from McGill University in Montreal, Canada, and earned his doctorate in clinical psychology from Baylor University in 2002. He serves as adjunct faculty in psychology graduate programs at Argosy University, Atlanta, where he has taught since 2006. Dr. James provides neuropsychological assessment and neurobehavioral treatment for adolescents and adults with a range of neurologic illnesses, and provides treatment primarily through individualized and group interventions. He is also the primary clinical supervisor for all trainees at Shepherd Pathways, the Complex Concussion Clinic, and SHARE Military Initiative.
Jill Koval, Ph.D., ABPP
Psychology Supervisor, Spinal Cord Injury
Dr. Koval joined the psychology staff at Shepherd Center in 1989 after completing her internship at the VA Medical Center in Decatur, GA. She has a long-standing position in leadership in the department and is currently the psychology supervisor. Dr. Koval received her Ph.D. in clinical psychology from George Washington University and is board certified in rehabilitation psychology. She has extensive experience in the area of emotional adjustment and other key rehabilitation issues for newly injured patients with SCI/dual diagnosis and their families. She treats patients in the Spinal Cord Injury Rehabilitation Program and SCI Day Program. Dr. Koval is also a member of the Shepherd Center Ethics Committee.
Kirsten Allen, Psy.D.
Clinical Rehabilitation Psychologist, SHARE Military Initiative
Kirsten Allen, Psy.D., joined Shepherd Center in September 2019 as a clinical rehabilitation psychologist for the SHARE Military Initiative and the Complex Concussion Clinic. Dr. Allen earned her doctoral degree in Clinical Psychology in 2018 as well as her master’s degree in Sport and Performance Psychology in 2013 from the University of Denver Graduate School of Professional Psychology in Denver, CO. She completed her internship at the James A. Haley (Tampa, FL) VA with a concentration in Rehabilitation, Health, and Neuropsychology, and her postdoctoral fellowship in Rehabilitation Psychology here in Atlanta, GA at Emory University School of Medicine. Prior to graduate school, she completed her undergraduate degree at Davidson College in Davidson, NC where she competed as a Division I athlete (swimmer). Dr. Allen’s current clinical focus is on psychological assessment and intervention for veterans, athletes, and civilians with a history of mild traumatic brain injury and post-traumatic stress. She also serves as a part-time professor at Georgia State University and as a consulting Sport and Performance Psychologist throughout the community.
Alex Alverson, Ph.D
Alex Alverson, Ph.D., joined Shepherd Center as a clinical neuropsychologist in 2019. Dr. Alverson earned a Bachelor of Science in Psychology from Georgia Tech in 2009, and in 2017, earned his doctorate in Clinical Psychology from the University of Houston in Houston, TX. He attended the University of Alabama Birmingham – Birmingham VA Medical Center Consortium for his clinical internship. He then completed a two-year postdoctoral fellowship in Neuropsychology at the South Texas Veterans Health Care System in San Antonio, TX, which included rotations in inpatient and outpatient polytrauma rehabilitation, the VA Neuropsychology Outpatient Clinic, the San Antonio Military Medical Center, and University of Texas Health Sciences Center. Dr. Alverson serves as a neuropsychologist on the inpatient acquired brain injury unit and conducts outpatient neuropsychological evaluations in the Outpatient Division of the Department of Psychology and Neuropsychology, as well as serving on the TBI committee. Dr. Alverson’s interests outside of work include BBQ, live music, and spending time with his wife and dog.
Gregory S. Brown, Psy.D.
Neuropsychologist, SHARE Military Initiative
Gregory S. Brown, Psy.D., joined the neuropsychology department in 2018 as the clinical neuropsychologist for the SHARE Military Initiative and the Complex Concussion Clinic. Dr. Brown earned his doctoral degree in 2014 from the Georgia School of Professional Psychology. He completed his internship at the Central Arkansas VA with a concentration in neuropsychology and a two-year APPCN postdoctoral fellowship in neuropsychology at Shepherd Center. Prior to his return to Shepherd Center, Dr. Brown worked as a neuropsychologist at Madigan Army Medical Center in Tacoma, WA, in the Army Intrepid Spirit and Traumatic Brain Injury Program. His current clinical focus is neuropsychological assessment and intervention of mild traumatic brain injury in both veteran and civilian populations. Dr. Brown also serves as adjunct faculty in the psychology graduate program at the Georgia School of Professional Psychology, where he has taught since 2015.
Jane DeMaria, M.A.
Jane DeMaria, M.A., is a psychometrist who conducts inpatient and outpatient neuropsychological testing for various programs at Shepherd Center, including the Brain Injury and Spinal Cord Injury Rehabilitation Programs, as well in the outpatient division of neuropsychology. She earned her Bachelor of Science in psychology at the University of Florida and her Master of Arts in psychology at the University of West Florida. Prior to working at Shepherd Center, she was employed as a psychometrist by a clinical psychologist in private practice in Pensacola, FL. In this role, she administered psychological tests for adolescents and adults referred by the Department of Vocational Rehabilitation for the State of Florida. She moved to Atlanta and joined Shepherd Center in 2016.
Carly Drummond, M.Ed., Ed.S.
Carly Drummond, M.Ed., Ed.S., is a psychometrist who conducts inpatient and outpatient neuropsychological testing for various programs at Shepherd Center, including the Brain Injury and Spinal Cord Injury Rehabilitation Programs, as well in the outpatient division of neuropsychology. She completed her Bachelor of Arts in English at the University of Georgia, and her Master of Education (M.Ed.) and Education Specialist (Ed.S.) degrees in school psychology at Georgia State University. She joined Shepherd Center in 2016.
Valerie Ellois, Ph.D
Valerie Ellois, Ph.D., joined Shepherd Pathways in 2020 as a Rehabilitation Psychologist providing therapy/interventions for patients and their families adjusting to brain injury. Dr. Ellois completed her undergraduate degree in psychology at the University of Chicago and received her Ph.D. in clinical psychology from The New School for Social Research in New York City. She completed her predoctoral internship at Rusk Rehabilitation as well as a two-year postdoctoral Rusk Advanced Rehabilitation Research Training (AART) Fellowship focusing on brain related illness/injury and neuropsychological rehabilitation. Dr. Ellois’ clinical interests include health disparities, suicidality, and problematic substance use in acquired brain injury. She has presented at several national conferences and has held leadership roles within APA Division of Rehabilitation Psychology and the American Psychological Association.
Rich Glickstein, LCSW, CAADC
Licensed Clinical Social Worker, SHARE Military Initiative
Rich Glickstein, LCSW, CAADC, joined Shepherd Center in 2014 as part of the SHARE Military Initiative, Shepherd’s program to treat combat veterans for mild traumatic brain injury (mTBI). He earned his master’s degree in 2011 from the University of South Carolina, where he specialized in working with military combat veterans, and is currently a licensed clinical social worker with a sub-specialty in treating substance addiction. Prior to joining Shepherd, he worked in addictions recovery in inpatient and outpatient settings with veterans and active duty service members. He takes an active role in educating mental health professionals who desire to work with military combat veterans and the photojournalism community on mental health issues. Before becoming a social worker and psychotherapist, he completed a bachelor’s degree in journalism at the University of Florida in 1999 and spent more than 10 years as a photojournalist at The State, the daily newspaper in Columbia, SC. He is on the board of directors at the Atlanta Photojournalism Seminar. He currently lives in Atlanta with his wife, their boxer, and kitty with a newspaper-themed name, Gray Lady.
Rob Godsall, Ph.D.
Senior Clinical Neuropsychologist
Rob Godsall, Ph.D., has been part of the Shepherd Center team since 1997 and is now the senior clinical neuropsychologist for the outpatient division of neuropsychology and the Andrew C. Carlos MS Institute of Shepherd Center. Dr. Godsall received his doctorate in clinical psychology from Georgia State University, where his specialty interests were clinical neuropsychology and family systems therapy. Dr. Godsall completed his clinical internship at the Center for Behavioral Medicine of the University of Missouri-Kansas City School of Medicine, where he completed rotations in forensic psychology and neuropsychology. He then completed a two-year postdoctoral fellowship in neuropsychology in the behavioral neurology section of the neurology department at the Emory School of Medicine. Along with his work in neuropsychology, Dr. Godsall continues to pursue his interests in the impact of family systems on the course of neurological disorders. Dr. Godsall served on the Professional Advisory Board for the Georgia chapter of Epilepsy Foundation for 14 years, including chairman, and continues to work with the NMSS Ga chapter through its partnership with the MS Institute of Shepherd.
Katie Harris, Psy.D.
Clinical Rehabilitation Neuropsychologist
Dr. Harris is a neuropsychologist specializing in assessment and intervention with rehabilitation populations. She obtained her doctoral degree in clinical psychology with an emphasis in neuropsychology from Roosevelt University in Chicago. Dr. Harris completed her internship at VA Northern California Healthcare System in the neuropsychology track. She then completed a two-year postdoctoral fellowship in rehabilitation neuropsychology at Johns Hopkins Hospital in the Department of Physical Medicine and Rehabilitation. Dr. Harris joined the Shepherd Center psychology department in 2019, where she collaborates with a team of healthcare providers to support patients’ cognitive and emotional wellness.
Michelle Jackson, Ph.D., ABPP-CN
Michelle Jackson, Ph.D., ABPP-CN, joined Shepherd Center in 2016 and is a board-certified clinical neuropsychologist. Dr. Jackson completed her undergraduate degree in psychology at Loyola University in New Orleans, LA, and earned her doctorate in clinical psychology in 2014 from Suffolk University in Boston, MA. She completed her clinical internship at the University of Mississippi Medical Center-Jackson VAMC Consortium. She then completed her two-year APPCN-approved postdoctoral fellowship in neuropsychology at the Methodist Rehabilitation Center in Jackson, MS. During her fellowship, she provided neuropsychological assessment and neurobehavioral treatment for adolescents and adults with a variety of neurological illnesses and insults, including stroke and traumatic brain injury. At Shepherd Center, she is a neuropsychologist for three teams on the inpatient acquired brain injury unit and conducts outpatient neuropsychological evaluations in the outpatient division of neuropsychology. She is co-chair of the Behavior Committee and also serves as one of the supervisors for Shepherd Center's APPCN clinical neuropsychology fellowship program. Dr. Jackson is originally from Trinidad and loves spending time with her dog, Maggie.
Juantae “JT” Karol, M.A.
Juantae “JT” Karol, M.A., is a psychometrist who conducts inpatient and outpatient neuropsychological testing for various programs at Shepherd Center, including the Brain Injury Rehabilitation and Spinal Cord Injury Rehabilitation Programs, as well in the outpatient division of neuropsychology. She completed her Bachelor of Arts degree in psychology at the University of West Florida, and her Master of Arts degree in clinical psychology at the Georgia School of Professional Psychology. She joined Shepherd Center in 2018.
Terri Kohn, LPC
Licensed Professional Counselor
Terri Kohn, LPC, initially joined the Shepherd Center counseling staff in 1985. She has counseled patients and clients in multiple programs at Shepherd Center, including the Spinal Cord Injury Rehabilitation Program and Day Program, outpatient brain injury programs at Shepherd Pathways, and the SHARE Military Initiative. Terri has also worked as a counselor with individuals with developmental disabilities. She completed her social work internship at the Medical College of Ohio at Toledo Hospital in 1978. Terri earned her undergraduate degree from Bowling Green State University and her graduate degree from the University of Georgia. She is a founding advisory board member and developed curriculum for the Family Warrior Weekend Camp, a camp for disabled service members from the wars in Afghanistan and Iraq. Terri has presented on emotional adjustment to brain injury and transition to family and civilian life for the Georgia National Guard.
Cheryl A. Linden, LPC, OT/L
Licensed Professional Counselor
Cheryl A. Linden, LPC, OT/L, is a licensed professional counselor at Shepherd Center. She graduated from Manchester College with a Bachelor of Social Work in 1982, and completed her master’s degree in occupational therapy from Western Michigan University in 1987. She joined Shepherd Center in 1988, working as an occupational therapist in inpatient spinal cord injury (SCI), outpatient spinal cord injury, inpatient acquired brain injury (ABI) and the intensive care unit (ICU). She served as the occupational therapy education coordinator from 1993 to 1997. She completed her master’s degree in psychology from the Georgia Professional School of Psychology in 2001 and transitioned to her current counseling position the following year, though she continues to maintain her license in both fields. Ms. Linden specializes in working with adolescents with SCI and brain injuries, and frequently gives presentations on adjustment issues within this population. She also maintains a private practice and serves on the Board of Directors for The Ramp Less Traveled, a nonprofit organization that provides scholarships and mentorship for young people with spinal cord injuries who are returning to college. In her spare time, she enjoys spending time with her family (including her three cats), golfing, performing standup and improv comedy, and volunteering at an animal shelter.
Wendy Magnoli, Ph.D.
Clinical Health Psychologist
Wendy Magnoli, Ph.D., is a psychologist for the Dean Stroud Spine and Pain Institute outpatient clinic. She received her Ph.D. in clinical psychology from Auburn University and completed her internship at the University of Alabama at Birmingham School of Medicine. Dr. Magnoli has specialized training and experience in pain psychology as well as other areas of health psychology. She is a certified clinical trauma professional with years of experience treating individuals with both acute and chronic trauma histories, and is especially interested in the association between trauma and chronic pain.
Casie Morrison, M.S., CSP
Lead Psychometrist, Neuropsychology
Casie Morrison, M.S., CSP, joined the neuropsychology team at Shepherd Center in 2017. She earned her M.S. in clinical/counseling psychology from Augusta University in 2013 and became a certified specialist in psychometry in 2017. She currently serves as president of the board of directors for the National Association of Psychometrists (NAP). In her role as lead psychometrist, Casie conducts both inpatient and outpatient neuropsychological testing for various programs including the Brain Injury Rehabilitation and Spinal Cord Injury Rehabilitation Programs, as well as in the outpatient division of neuropsychology. Prior to her arrival at Shepherd Center, she worked for the Intrepid Spirit Concussion Recovery Center at Naval Hospital Camp Lejeune in North Carolina. There, she conducted neuropsychological testing for military service members with traumatic brain injuries, PTSD and other psychological disorders.
Punam Rahman, Psy.D.
Clinical Neurorehabilitation Psychologist
Dr. Rahman joined the Shepherd Center psychology department in 2017. She is a licensed psychologist who provides treatment and conducts cognitive assessments for a diverse range of people affected by neurological diseases and injuries. She graduated from the University of Rochester with her bachelor's degree before obtaining her Psy.D. from the Chicago School of Professional Psychology. Dr. Rahman completed her internship at Mount Sinai Hospital in New York with a one-year neurorehabilitation fellowship at Weiss Memorial Hospital. She is passionate about helping patients with spinal cord injuries/dual diagnosis achieve their optimal level of functioning, compassionately helping them navigate through the challenging transitions. Dr. Rahman also serves as the SCI Rehabilitation Psychology training coordinator and is the chair of the Patient and Family Experience Committee. Along with her clinical work, Dr. Rahman enjoys doing outreach within the community, supervising graduate students and cooking with her family.
Tim Riggins, LCSW
Rehabilitation Counselor, Shepherd Pathways
Tim Riggins, LCSW, is a licensed clinical social worker (LCSW) and rehabilitation counselor who works with patients and families adjusting to brain injury at Shepherd Pathways. He earned a master’s degree in social work from North Carolina State University and a bachelor's degree in psychology from North Carolina State University. He has worked in the areas of homelessness, mental health, suicide prevention, LGBTQ, hospice, bereavement and acquired brain injuries. He has extensive experience with adolescents, adults and children. Tim has developed strong therapeutic skills with issues surrounding anxiety, depression, bereavement, sexuality, LGBT issues, couples/family counseling and brain injury. Tim uses a therapeutic treatment approach rooted in Cognitive Behavioral Therapy, Dialectical Behavioral Therapy and Family Systems approaches. Tim focuses on a holistic, client-centered approach that supports balance between the body, mind and spirit.
Jessica Robbins, Ph.D.
Jessica Robbins, Ph.D., joined Shepherd Center as a clinical neuropsychologist in 2016. After receiving her undergraduate degree from Samford University and her Master of Science degree from Mississippi State University, she completed her Ph.D. in clinical psychology with a concentration in neuropsychology from Nova Southeastern University. As a Birmingham VAMC-funded intern, she completed a clinical psychology internship with an emphasis in neuropsychology at the University of Alabama at Birmingham Psychology Training Consortium. Dr. Robbins then finished an APPCN fellowship in neuropsychology at West Virginia University School of Medicine. At Shepherd Center, she serves as the neuropsychologist for two teams in the inpatient Brain Injury Rehabilitation Program and also conducts weekly outpatient neuropsychological evaluations in the outpatient division of neuropsychology. Her outpatient referrals involve general neurology referrals, with an emphasis in neurodegenerative disease rule-outs. Dr. Robbins serves as one of the supervisors for Shepherd Center's APPCN clinical neuropsychology fellowship program, and is also the neuropsychology research coordinator. Her research and interests include examining the psychometric properties of neuropsychological measures, assessing outcomes of neuropsychological intervention, and improving access for underserved populations.
Sara Schleicher-Dilks, Ph.D.
Sara Schleicher-Dilks, Ph.D., earned her B.A. in psychology from the College of the Holy Cross in Worcester, MA. She continued her education at Nova Southeastern University in Fort Lauderdale, FL, where she graduated with her Ph.D. in the APA-accredited clinical psychology program with a concentration in neuropsychology. She completed her clinical internship with a neuropsychology concentration at the Albuquerque VA in New Mexico. She then completed a two-year clinical postdoctoral fellowship at Medstar National Rehabilitation Hospital in Washington, DC, with a focus in neuropsychology and rehabilitation. She is thrilled to now be part of the Shepherd Center family, where she continues to provide comprehensive assessment and psychological treatment to individuals with medically complex conditions.
Susan K. Shwartz, Ph.D.
Susan Shwartz, Ph.D., joined Shepherd Center in 2016 as a clinical neuropsychologist at Shepherd Pathways, Shepherd’s post-acute brain injury program. Dr. Shwartz graduated with a Bachelor of Science in psychology from the University of Maryland, College Park, and earned her master’s and doctorate degrees from Georgia State University’s joint Clinical Psychology and Neuropsychology/Behavioral Neurosciences Program in 2010 and 2014, respectively. She completed her clinical internship in neuropsychology at the Minneapolis VA Health Care System, and her APPCN-approved postdoctoral fellowship in neuropsychology at the Memphis VA Medical Center. She loves being involved in the training programs at Shepherd Center. In her spare time, she enjoys spending time with her family (husband and a dog named Lady) and friends, exercising, cooking, and most importantly, eating.
Shatavia Alexander Thomas, DMFT, LMFT
Licensed Marriage and Family Therapist
Shatavia Alexander Thomas, DMFT, LMFT, licensed marriage and family therapist, joined Shepherd Center in 2020 as the ABI Family Therapist. She received her B.S. in Psychology and M.S. in Professional Counseling from Georgia State University, and her doctorate of marriage and family therapy from Nova Southeastern University in Fort Lauderdale, FL. Her previous roles include substance abuse and outpatient mental health counselor, juvenile court family therapist, university staff counselor, group therapist, nonprofit executive, faculty member, and director of clinical training. Shay has also served as a mental health consultant to an assisted living facility, community-based medical clinic, and collegiate sports team. She frequently facilitates continuing education workshops to licensed mental health professionals. Her memberships include the American Association for Marriage and Family Therapy (AAMFT)/Clinical Fellow and AAMFT Approved Supervisor, the Georgia Association for Marriage and Family Therapy (GAMFT) and the National Board of Certified Counselors (NBCC). Grounded in family systems, her strengths-based style involves offering hope, maximizing resources, infusing creativity, and considering the impact of generational patterns, culture and meaning. Shay also maintains a private practice in Atlanta.
Vanessa Watorek, Psy.D
Neuropsychology Postdoctoral Fellow
Vanessa Watorek, Psy.D., joined Shepherd Center in September 2019 as a neuropsychology postdoctoral fellow. She obtained a B.A. and M.A. in Psychology at New York University. In 2019, she received her Psy.D. degree in Clinical Psychology from the University of Hartford (APA-accredited). Dr. Watorek completed her CPA-accredited internship at Hamilton Health Sciences, with an emphasis on neuropsychology within a rehabilitation setting. She works with individuals from adolescence through older adulthood, with specific interests in acquired brain injury and neurodegenerative conditions.
Zac Yanis, Jr., Psy.D.
Zac Yanis, Jr., Psy.D., is a PRN clinical neuropsychologist for Shepherd Center’s inpatient Brain Injury Rehabilitation Program and Shepherd Pathways’ post-acute day and residential programs. Within each setting, he conducts neuropsychological assessments and collaborates with each patient’s multidisciplinary treatment team to provide cognitive, emotional and neurobehavioral interventions. Dr. Yanis is also an independent clinician at Cognitive Rehabilitation of Georgia (CRG), a private group practice located in Decatur, and is an adjunct professor in the Department of Clinical Medical Psychology at Mercer University, Atlanta. He completed his second year of neuropsychology fellowship at CRG, where his training was consistent with the Houston Conference Guidelines for specialty training in clinical neuropsychology, including direct supervision by a board-certified neuropsychologist (ABPP/CN). Prior to that, he completed one year of an APPCN-accredited neuropsychology fellowship in the Acquired Brain Injury Inpatient Unit at the Shepherd Center, an APA-accredited predoctoral neuropsychology internship at the Coatesville VAMC, and multiple neuropsychology externships through Emory’s Center for Rehabilitation Medicine, Shepherd Pathways, Restore Neurobehavioral Center, and CRG. He completed his graduate training at the Georgia School of Professional Psychology in Atlanta.