Evaluations and Interventions of Thinking Problems for Children, Adults, & Seniors
Evaluations and Interventions of Thinking Problems for Children, Adults, & Seniors


Thomson Memory Center's staff are highly-trained, experienced and dedicated to the health and well-being of our patients and their families.

Dr. Christina Blodgett Dycus is the Founder and Clinical Director of the Thomson Memory Center. She completed her fellowship in Clinical Neuropsychology at Loyola University Medical Center and earned her Doctorate from the Illinois Institute of Technology. Her clinical interests include correlating neuropsychological data with neuroimaging results. Dr. Blodgett Dycus was born and raised in the northwest suburbs, which is where she now resides with her own family.

Dr. Christina Vocos  joined the Thomson Memory Center as a Post-Doctoral Fellow in August 2012. Following completion of her 2-year Post-Doctoral training, she remained a part of the clinical team at the Thomson Memory Center and continues to provide extensive neuropsychological testing. Dr. Vocos has experience assessing and treating the lifespan with a particular interest in working with the geriatric population. She specializes in cognitive capacity assessments and frequently conducts in-home evaluations. Dr. Vocos grew up in Chicago’s northwest suburbs and enjoys spending time with her friends and family as well as participating in recreational sports.


Dr. Anthony Tucci joined the Thomson Memory Center in 2014 after completing his internship at Jewish Child and Family Services which focused on neuropsychological assessment and multi-theoretical intervention across the lifespan. He earned his Doctorate from Northern Illinois University where he gained specialized training in neuropsychological assessment, developmental psychopathology, and evidence-based interventions. Dr. Tucci completed his 4000 hour post-doctoral fellowship with Thomson Memory Center, attaining specific and specialized training in comprehensive neuropsychological evaluation.  Following his post-doctoral fellowship, he continued with Thomson Memory Center as a Clinical Neuropsychologist and supervisor. Dr. Tucci also teaches college level courses in the community. He enjoys working with families, children, and adults to improve management of severe pathology as well as to aid in adjustment to significant lifestyle changes. Anthony grew up in Chicago’s western suburbs and enjoys traveling, hiking and spending time with his children.

Dr. Holly Hagen received her Doctorate in Psychology from the Adler School of Professional Psychology, with a concentration in Neuropsychology. She completed her internship at Mount Sinai Medical Center in New York, specializing in TBI, stroke and anoxic injury. Dr. Hagen has experience in assessing patients across the life span with a particular focus in the pediatric population. During her free time, Dr. Hagen enjoys running, cooking and spending time with her family.

Dr. Arina Polevoy completed her internship specializing in Clinical Neuropsychology at the Illinois Psychological Association Predoctoral Internship Consortium (IPAPIC), Psychological Consultations. Dr. Polevoy received her Doctorate from the Illinois School of Professional Psychology with a concentration in Neuropsychology. She completed a two-year fellowship program at Thomson Memory Center as well as Northwest Behavioral Health Services focusing on providing integrative neuropsychological assessments with children and adults. Dr. Polevoy utilizes a variety of assessment methods including a thorough review of presenting concerns, review of medical records and informant interviews, intellectual assessment, and socio-emotional evaluations. As well, she evaluates eligibility for school and/or test accommodations. Her clinical interests are in assessments of children, adolescents, and adults with a variety of clinical presentations including traumatic-brain injuries, learning disorders, developmental disorders, ADHD, epilepsy, complex medical conditions such as stroke and cancer, memory disturbances such as Alzheimer's disease, HIV-related disorders, and socio-emotional evaluations. Her hobbies include traveling and spending time with family and friends.

Dr. Jason Karafa specializes in neuropsychological evaluations for children and adults with acquired brain disorders, neurodevelopmental and congenital disorders, including Autism Spectrum Disorders, traumatic brain injury, learning disorders, and ADHD. Dr. Karafa completed his academic training through the Illinois School of Professional Psychology for his Doctorate in Clinical Psychology, with a specialization in Neuropsychology. Jason started at Thomson Memory Center as a neuropsychology technician and returned after completing his internship at BRAINS in Grand Rapids, MI. He is dedicated to providing the highest level of patient care and satisfaction. An avid outdoor enthusiast, Dr. Karafa enjoys running, traveling and spending time on the lake.

Dr. Mandy Schnibben completed her Doctorate in Clinical Psychology at Antioch University, Santa Barbara in 2014. She joined the Thomson Memory Center in August 2014, after completing her internship in Forensic Psychology at Elgin Mental Health Center where she gained specialized training in psychopathology and evidence-based interventions. While practicing at Thomson Memory Center, Dr. Schnibben earned over 3,000 hours during her fellowship in therapy and evaluations. Her previous experience includes rotations at Cognitive Fitness and Innovative Therapies (CFIT) and at the California Department of Rehabilitation. Her clinical interests include emotional dysregulation, dementia, and cognitive rehabilitation due to neurological disorders, TBI, ADHD, and Stroke. Dr. Schnibben currently resides with her family in the southwest suburbs.

Dr. Calsey Fasching  joined the Thomson Memory Center in September of 2016 after completing her doctorate at Saint Mary’s University of Minnesota.  She completed her internship at the Department of State Hospitals-California.  Her practice at Thomson Memory Center includes pediatric, adult, and geriatric neuropsychological evaluations.  She plans to pursue board certification in clinical neuropsychology upon completion of her fellowship. Dr. Hoefler enjoys running and spending time with her two French Bulldogs, Olaf and Alfie.

Dr. Tammy Kealey earned her doctorate from Adler University with a specialization in Clinical Neuropsychology.  She completed her clinical training at Rush University Medical Center in the Movement Disorders Center in Chicago and her internship at Psychological and Neurobehavioral Services in Lakeland, Florida. She specializes in conducting neuropsychological evaluations across the lifespan. Her clinical interests include: head injuries, neurocognitive disorders, and neurodegenerative disorders such as Parkinson's Disease and Alzheimer's Disease.  Dr. Kealey grew up in Southern California and enjoys exploring the city, traveling and trying new cuisines. 

Dr. Kelly Fields joined Thomson Memory Center after finishing her internship with the Missouri Health Sciences Psychology Consortium where she focused on lifespan (toddlers, high school and college students, and veterans) neuropsychology.  She earned her Ph.D. in Clinical and Counseling Psychology from the University of South Alabama. Dr. Fields’ clinical interests include but are not limited to Attention Deficit-Hyperactivity Disorder, learning disorders, Autism Spectrum Disorder, dementia, cerebrovascular accidents, and differentiating between psychiatric and medical disorders and acquired and/or organic brain dysfunction. When not consumed with neuropsychological assessment and the weather is kind, Dr. Fields may be found with family and friends eating, adventuring, reading and actively participating in life.

Dr. Amina Homeidan received her doctorate from Carlos Albizu University, with a focus in Clinical Neuropsychology. She completed her clinical internship at the Battle Creek Veteran's Affairs Medical Center in Michigan, providing services to individuals with an array of cognitive, medical, and psychiatric disorders. Her clinical interests include neurological disorders across the lifespan and cross-cultural neuropsychology. Dr. Homeidan was raised in Miami, FL and is proficient in both English and Spanish. During her free time, she enjoys spending time outdoors, traveling, volunteering and attending concerts/festivals.

Dr. Nickolas Armstrong received his Doctorate in Psychology from The Chicago School of Professional Psychology, with focus in Neuropsychology and Health Psychology. He completed his internship at Vanderbilt University Medical Center, specializing in the evaluation of dementia, epilepsy, and ADHD. He gained additional experience with psychological evaluations for surgical weight loss, clinical hypnosis, and evidence based psychotherapy. Dr. Armstrong has experience in assessing patients accross the life span with a particular emphasis on adult and geriatric populations. During his free time, Dr. Armstrong enjoys gardening, exercise, and spending time with friends and family.

Dr. Monica Gamez earned her doctorate in Clinical Psychology from Nova Southeastern University, with a concentration in Neuropsychology. She joined the Thomson Memory Center in 2018 after completion of her internship at Memorial Regional Hospital in Hollywood, Florida. Dr. Gamez has experience in conducting neuropsychological evaluations for individuals across the lifespan in clinical and research settings; she had a particular interest in working with the geriatric population. Her clinical interests include but are not limited to dementia, neurocognitive disorders, traumatic brain injury, stroke, learning disorders, and other neurodevelopmental disorders. Dr. Gamez is a fluently bilingual and bicultural clinician who is experienced with assessment in both English and Spanish. She grew up in Miami, Florida and enjoys exercising, traveling, and attending concerts and sporting events.

Dr. Rebecca Yesian is currently a post-doctoral fellow at Thomson Memory Center. She recently completed her internship at the VA Southern Oregon Rehabilitation Center and Clinics, and obtained her doctorate in Clinical Psychology with a focus in Neuropsychology from Pacific University in Oregon. Her clinical interests include assessing individuals with a wide range of presenting problems, including brain injury, stroke, dementia, and movement disorders. She enjoys reading, spending time with her family, and nature activities. 


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Hoffman Estates

2300 Barrington Rd. Ste 400

Hoffman Estates, IL 60169



1451 Merchant Dr.

Algonquin, IL 60102


St. Charles

100 Illinois St. Ste 200

St. Charles, IL 60174



500 Lake Cook Rd. Ste 350

Deerfield, IL 60015


Chicago-Lincoln Park

939 W. North Ave. Ste 750

Chicago, Il 60642


Oak Brook

700 Commerce Dr. Ste 500
Oak Brook, IL 60523

Park Ridge

350 S. Northwest Hwy. Ste 300

Park Ridge, IL 60068


Barrington-Now Open!

120 N. Northwest Hwy.

Barrington, IL 60010


Office: (847) 469-7537

Fax: (847) 469-7540

Email: Info@ThomsonMemory.com

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