The Barrow Neurological Institute is proud of its reputation as a medical research facility and is home to some of the most sophisticated research programs outside of an academic setting in the Southwestern United States. Researchers in the Barrow Neurosurgery Research Center are devoted to learning more about the causes of and treatments for a wide range of disorders, such as stroke, aneurysms, spinal cord injury, and hydrocephalus. Our research has led to treatments that are being used around the world. Within the Department are neurosurgeons who subspecialize in cerebrovascular and skull base, functional and stereotactic, pediatric, spine, tumor, and endovascular neurosurgery.

Physicians, scientists, and expert clinical staff come together with a commitment to developing new techniques for the prevention, diagnosis, treatment, and rehabilitation of neurological illnesses and injuries. The leadership of internationally respected physicians keeps Barrow at the forefront of neuroscience. The compassionate expertise of its extensive staff of nurses, technologists, therapists and support personnel is evident in every aspect of care provided.

Our mission is to advance the knowledge and practice of medicine in neuroscience through basic and clinical research, education of medical professionals, and innovation in clinical techniques and technology.

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Submissions from 1999

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Lexical, semantic, and action verbal fluency in Parkinson's disease with and without dementia, Andrea L. Piatt, Julie A. Fields, Anthony M. Paolo, William C. Koller, and Alexander I. Tröster

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Action (verb naming) fluency as an executive function measure: Convergent and divergent evidence of validity, Andrea L. Piatt, Julie A. Fields, Anthony M. Paolo, and Alexander I. Tröster

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Commentary: Beyond Statistics and Research Design, George P. Prigatano

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Cognitive and affective improvement in brain dysfunctional patients who achieve inpatient rehabilitation goals, George P. Prigatano and Jane L. Wong

Interictal and postictal cognitive changes in migraine, A. I. Troster

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Neuropsychological and quality of life outcome after thalamic stimulation for essential tremor, Alexander I. Tröster, J. A. Fields, R. Pahwa, S. B. Wilkinson, K. A. Straits-Tröster, K. Lyons, J. Kieltyka, and W. C. Koller

Submissions from 1998

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Lesion volume and clinical outcome in stereotactic pallidotomy and thalamotomy, Scott H. Goodman, Steve Wilkinson, John Overman, William C. Koller, Alex Tröster, Rajesh Pahwa, Kelly Lyons, Jennifer Kieltyka, Jeffrey Burns, and Michael Gordon

Gender differences in Parkinson's disease, Kelly E. Lyons, Jean P. Hubble, Alexander I. Tröster, Rajesh Pahwa, and William C. Koller

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Improvements in daily functioning after deep brain stimulation of the thalamus for intractable tremor, Kelly E. Lyons, Rajesh Pahwa, Karen L. Busenbark, Alexander I. Tröster, Steve Wilkinson, and William C. Koller

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Continuous visual memory test performance in healthy persons 60 to 94 years of age, Anthony M. Paolo, Alexander I. Tröster, and Joseph J. Ryan

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Test-retest stability of the Continuous Visual Memory Test in elderly persons, Anthony M. Paolo, Alexander I. Tröster, and Joseph J. Ryan

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Initial disturbances of consciousness and resultant impaired awareness in Spanish patients with traumatic brain injury, George P. Prigatano, Olga Bruna, M. Mataro, J. M. Muñoz, S. Fernandez, and C. Junque

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Comparative magnetic resonance image-based evaluation of thalamotomy and pallidotomy lesion volumes, Travis T. Tollefson, Jeffrey Burns, Steve Wilkinson, John Overman, Jennifer Kieltyka, Scott H. Goodman, William C. Koller, Alex Tröster, Kelly Lyons, Rajesh Pahwa, Solomon Batnitzky, Louis Wetzel, and Michael Gordon

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Cortical and subcortical influences on clustering and switching in the performance of verbal fluency tasks, Alexander I. Tröster, Julie A. Fields, Julie A. Testa, Robert H. Paul, Carlos R. Blanco, Karen A. Hames, David P. Salmon, and William W. Beatty

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Chronic electrical stimulation of the left ventrointermediate (Vim) thalamic nucleus for the treatment of pharmacotherapy-resistant Parkinson's disease: A differential impact on access to semantic and episodic memory?, Alexander I. Tröster, Steven B. Wilkinson, Julie A. Fields, Karen Miyawaki, and William C. Koller

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Comparison of actual pallidotomy lesion location with expected stereotactic location, Kuo Jen Tsao, Steve Wilkinson, John Overman, Jennifer Kieltyka, Travis Tollefson, William C. Koller, Rajesh Pahwa, Alexander I. Troster, Kelly E. Lyons, Solomon Batznitzky, Louis Wetzel, and Michael A. Gordon

Submissions from 1997

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Analysis of pallidotomy lesion positions using three-dimensional reconstruction of pallidal lesions, the basal ganglia, and the optic tract, Jeffrey M. Burns, Steve Wilkinson, Jennifer Kieltyka, John Overman, Thorsten Lundsgaarde, Travis Tollefson, William C. Koller, Rajesh Pahwa, Alexander I. Troster, Kelly E. Lyons, Solomon Batnitzky, Louis Wetzel, and Michael A. Gordon

Magnetic resonance image evaluation of pallidotomy lesions: a volumetric and shape analysis., J M Burns, S Wilkinson, J Overman, J Kieltyka, T Lundsgaarde, T Tollefson, W C Koller, R Pahwa, A I Tröster, K E Lyons, S Batnitzky, L Wetzel, and M A Gordon

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A comparison of Parkinson's disease symptoms and self-reported functioning and well being, Kelly E. Lyons, Rajesh Pahwa, Alexander I. Tröster, and William C. Koller

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Motor complications of chronic levodopa therapy in Parkinson's disease, Edison Miyawaki, Kelly Lyons, Rajesh Pahwa, Alexander I. Tröster, Jean Hubble, Diane Smith, Karen Busenbark, Desni McGuire, Debra Michalek, and William C. Koller

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Estimating premorbid WAIS-R intelligence in the elderly: An extension and cross validation of new regression equations, Anthony M. Paolo, Joseph J. Ryan, and Alexander I. Tröster

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California verbal learning test: Normative data for the elderly, Anthony M. Paolo, Alexander I. Tröster, and Joseph J. Ryan

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Test-retest stability of the California Verbal Learning Test in older persons, Anthony M. Paolo, Alexander I. Tröster, and Joseph J. Ryan

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Comparison of NART and Barona demographic equation premorbid IQ estimates in Alzheimer's Disease, Anthony M. Paolo, Alexander I. Tröster, Joseph J. Ryan, and William C. Koller

A cross-cultural study on impaired self-awareness in Japanese patients with brain dysfunction, George P. Prigatano, Misao Ogano, and Banri Amakusa

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Suspected malingering and the digit memory test: A replication and extension, George P. Prigatano, Ivan Smason, David G. Lamb, and Jennifer J. Bortz

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Speed of finger tapping and goal attainment after unilateral cerebral vascular accident, George P. Prigatano and Jane L. Wong

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Prescribed versus actual length of stay and inpatient neurorehabilitation outcome for brain dysfunctional patients, George P. Prigatano, Jane L. Wong, Candyce Williams, and Kathern L. Plenge

Differentiating patients with higher cerebral dysfunction from patients with psychiatric or acute medical illness using the BNI screen for higher cerebral functions, Leslie D. Rosenstein, George P. Prigatano, and Meghana Nayak

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Unilateral pallidal stimulation for Parkinson's disease: Neurobehavioral functioning before and 3 months after electrode implantation, Alexander I. Tröster, J. A. Fields, S. B. Wilkinson, R. Pahwa, E. Miyawaki, K. E. Lyons, and W. C. Koller

Submissions from 1996

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Risk factors for dementia in parkinson’s disease: Effect of education, S. L. Glatt, J. P. Hubble, K. Lyons, A. Paolo, A. I. Tröster, R. E.S. Hassanein, and W. C. Koller

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Utility of a Wisconsin Card Sorting Test short form in persons with Alzheimer's and Parkinson's disease, Anthony M. Paolo, Bradley N. Axelrod, Alexander I. Tröster, Karen T. Blackwell, and William C. Koller

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Utility of the Barona demographic equations to estimate premorbid intelligence: Information from the WAIS-R standardization sample, Anthony M. Paolo, Joseph J. Ryan, Alexander I. Tröster, and Craig D. Hilmer

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Neuropsychological rehabilitation after brain injury: Scientific and professional issues, George P. Prigatano

Submissions from 1995

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Differential response characteristics in nonepileptic and epileptic seizure patients on a test of verbal learning and memory, Jennifer J. Bortz, George P. Prigatano, David Blum, and Robert S. Fisher

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Apolipoprotein E genotypes in Parkinson's disease with and without dementia, William C. Koller, Sander L. Glatt, Jean P. Hubble, Anthony Paolo, Alexander I. Tröster, Karen Schmidt, Annette Karst, Michael S. Handler, Rebecca T. Horvat, Coleman Martin, Ellen M. Wijsman, Chang‐En ‐E Yu, and Gerard D. Schellenberg

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Psychogenic movement disorders, J. Marjama, A. I. Troster, and W. C. Koller

Influence of demographic variables on the dementia rating scale, A. M. Paolo, A. I. Troster, S. L. Glatt, J. P. Hubble, and W. C. Koller

Influence of demographic variables on the Dementia Rating Scale., A M Paolo, A I Tröster, S L Glatt, J P Hubble, and W C Koller

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Construct validity of the WCST in normal elderly and persons with Parkinson's disease, Anthony M. Paolo, Alexander I. Tröster, Bradley N. Axelrod, and William C. Koller

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Differentiation of the Dementias of Alzheimer's and Parkinson's Disease with the Dementia Rating Scale, Anthony M. Paolo, Alexander I. Tröster, Sander L. Glatt, Jean P. Hubble, and William C. Koller

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Frontal cognitive function and memory in Parkinson’s disease: Toward a distinction between prospective and declarative memory impairments?, A. I. Tröster and J. A. Fields

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The influence of depression on cognition in parkinson's disease: A pattern of impairment distinguishable from alzheimer's disease, A. I. Troster, A. M. Paolo, K. E. Lyons, S. L. Glatt, J. P. Hubble, and W. C. Koller

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Neuropsychological Impairment in Parkinson's Disease With and Without Depression, Alexander I. Tröster, Lisa D. Stalp, Anthony M. Paolo, Julie A. Fields, and William C. Koller

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The roles of semantic networks and search efficiency in verbal fluency performance in intractable temporal lobe epilepsy, Alexander I. Tröster, Valerie Warmflash, Ivan Osorio, Anthony M. Paolo, Leslie J. Alexander, and William B. Barr

Submissions from 1994

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Selected cases of poor outcome following a minor brain trauma: Comparing neuropsychological and positron emission tomography assessment, R. M. Ruff, J. A. Crouch, A. I. Tröster, L. F. Marshall, M. S. Buchsbaum, S. Lottenberg, and L. M. Somers

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Predicting long-term outcome in individuals at risk for Alzheimer's disease with the dementia rating scale, A. I. Troster, K. E. Moe, M. V. Vitiello, and P. N. Prinz

Submissions from 1993

Awareness of behavioral limitations after traumatic brain injury: A cross-cultural study of New Zealand maoris and non-maoris, George P. Prigatano and Janet M. Leathern

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Digit Memory Test: Unequivocal cerebral dysfunction and suspected malingering, G. P. Prigatano and K. Amin

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Uses and abuses of neuropsychological testing in behavioral neurology, G. P. Prigatano and J. E. Redner

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The diagnostic utility of savings scores: Differentiating Alzheimer's and Huntington's diseases with the logical memory and visual reproduction tests, A. I. Troster, N. Butters, D. P. Salmon, C. M. Cullum, D. Jacobs, J. Brandt, and R. F. White

Submissions from 1992

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Personality Disturbances Associated With Traumatic Brain Injury, George P. Prigatano

Submissions from 1991

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Supportive psychotherapy for a patient exhibiting alexia without agraphia, Kevin P. O’Brien and George P. Prigatano

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Dementia as a neuropsychological consequence of chronic occupational exposure to polychlorinated biphenyls (PCBs), Alexander I. Tröster, Ronald M. Ruff, and David P. Watson

Submissions from 1990

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Intrusion errors in the figural memory of patients with Alzheimer's and Huntington's disease, Diane Jacobs, David P. Salmon, Alexander I. Tröster, and Nelson Butters

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Normal aging and forgetting rates on the wechsler memory scale-revised, C. Munro Cullum, Nelson Butters, Alexander I. Tröster, and David P. Salmon

Impaired awareness of behavioral limitations after traumatic brain injury, G. P. Prigatano and I. M. Altman

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Neuropsychological sequelae of exposure to the chlorinated hydrocarbon solvents trichloroethylene and trichloroethane, Alexander I. Tröster and Ronald M. Ruff

Submissions from 1989

Work, love, and play after brain injury, G. P. Prigatano

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Differentiating Alzheimer's disease from Huntington's disease with the Wechsler Memory Scale-Revised, A. I. Troster, D. Jacobs, N. Butters, C. M. Cullum, and D. P. Salmon

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A comparison of the category fluency deficits associated with Alzheimer's and Huntington's disease, Alexander I. Tröster, David P. Salmon, Donna McCullough, and Nelson Butters

Submissions from 1988

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Preserved topographical memory following right temporal lobectomy, William W. Beatty, William D. MacInnes, Harry S. Porphyris, Alexander I. Tröster, and Laird S. Cermak

Submissions from 1987

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Progressive Neuropsychologic Impairment and Hypoxemia: Relationship in Chronic Obstructive Pulmonary Disease, Igor Grant, George P. Prigatano, Robert K. Heaton, A. John McSweeny, Elizabeth C. Wright, and Kenneth M. Adams

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Recovery and cognitive retraining after craniocerebral trauma., G. P. Prigatano

Submissions from 1986

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Preserved spatial memory in old rats survives 10 months without training, Rex A. Bierley, Gloria J. Rixen, Alexander I. Tröster, and William W. Beatty

Submissions from 1985

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Relationship of neuropsychological status to everyday functioning in healthy and chronically ill persons, A. J. McSweeny, I. Grant, R. K. Heaton, G. P. Prigatano, and K. M. Adams

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Information processing and reading competencies in hydrocephalic children, George P. Prigatano and Harriet K. Zeiner

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Ocular motility, visual acuity and dysfunction of neuropsychological impairment in children with shunted uncomplicated hydrocephalus, Harriet K. Zeiner, George P. Prigatano, Michael Pollay, Charles B. Biscoe, and Richard V. Smith

Submissions from 1984

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Quality of Life and Its Predictors in Patients With Mild Hypoxemia and Chronic Obstructive Pulmonary Disease, George P. Prigatano, Elizabeth C. Wright, and David Levin

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Neuropsychological rehabilitation after closed head injury in young adults, G. P. Prigatano, D. J. Fordyce, H. K. Zeiner, J. R. Roueche, M. Pepping, and B. C. Wood

Submissions from 1983

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Enhanced emotional reactions in chronic head trauma patients, David J. Fordyce, James R. Roueche, and George P. Prigatano

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Neuropsychological test performance in mildly hypoxemic patients with chronic obstructive pulmonary disease, George P. Prigatano and et al

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Neuropsychological functioning in children with shunted uncomplicated hydrocephalus, Georte P. Prigatano, Harriet K. Zeiner, Michael Pollay, and Ralph J. Kapla

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Visual imagery and the corpus callosum: a theoretical note., G. P. Prigatano

Submissions from 1982

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Perception and memory of facial affect following brain injury., G. P. Prigatano and K. H. Pribram

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Sleep and dreaming disturbances in closed head injury patients, G. P. Prigatano, M. L. Stahl, W. C. Orr, and H. K. Zeiner

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Information processing deficits in hydrocephalic and letter reversal children, Harriet K. Zeiner and George P. Prigatano

Submissions from 1981

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Humor and episodic memory following frontal versus posterior brain lesions., G. P. Prigatano and K. H. Pribram

Submissions from 1980

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Neuropsychological functioning of recidivist alcoholics treated with disulfiram: A follow-up report, George P. Prigatano

Submissions from 1978

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Methodological considerations in clinical neuropsychological research, Oscar A. Parsons and George P. Prigatano

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Wechsler memory scale: A selective review of the literature, George P. Prigatano

Submissions from 1977

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Neuropsychological functioning in recidivist alcoholics treated with disulfiram., George P. Prigatano

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Wechsler memory scale is a poor screening test for brain dysfunction, George P. Prigatano

Submissions from 1976

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Relationship of age and education to Halstead Test performance in different patient populations, George P. Prigatano and Oscar A. Parsons

Submissions from 1974

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Autonomic nervous system changes associated with a spider phobic reaction, George P. Prigatano and Harold J. Johnson

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Chronic Hepatic Encephalopathy Treated with Oral Lactose in a Patient with Lactose Malabsorption, J. D. Welsh, D. Cassidy, G. P. Prigatano, and C. G. Gunn