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Gerry A. Stefanatos

Gerry A. Stefanatos, D.Phil. Temple University Department of Communications Sciences

Associate Professor


Weiss Hall 114


Gerry A. Stefanatos, D.Phil. is an Associate Professor in the Department of Communication Sciences and Disorders at Temple University in Philadelphia, Pennsylvania. He received his bachelor's degree in Psychology from McGill University in Montreal and his doctorate in Clinical Neuropsychology from the University of Oxford in England. After a post-doctoral fellowship at the University of Western Ontario, he taught at Trinity University and the University of Texas Health Science Center in San Antonio. He then moved to Philadelphia to become an Assistant Professor in the Department of Psychiatry at the Medical College of Pennsylvania and Director of Neuropsychological Services at St. Christopher's Hospital for Children. In 1993, he accepted a position as an Associate Professor in the Department of Psychiatry and Human Behavior at Thomas Jefferson University in Philadelphia and began his own Center for Clinical and Developmental Neuropsychology. He then went on to pursue a research career as Director of the Cognitive Neurophysiology Laboratory at Moss Rehabilitation Research Institute and collaborated on functional neuroimaging studies with colleagues at the Center for Functional Neuroimaging at the University of Pennsylvania. He joined the Department of Communication Sciences and Disorders at Temple University in 2007 and heads the Cognitive Neurophysiology Laboratory.

Course Involvement

Undergraduate Courses:
CSC+DIS 2201 Research Methods
CSC+DIS 3235 Human Neuroscience


Stefanatos, G.A. (2012) Neuropathology of autism. In M. Reber (Ed.). The Autism Spectrum: Scientific Foundations and Treatment, Cambridge University Press: Cambridge, UK. pp. 82-110. 

Stefanatos, G.A. (2012) Developmental neuropsychology of autism. In M. Reber (Ed.), The Autism Spectrum: Scientific Foundations and Treatment, Cambridge University Press: Cambridge, UK. pp. 59-82.

Stefanatos, G.A. (2012) Autism Spectrum Disorder. In C. Noggle & R. Dean (Eds.). The Neuropsychology of Psychopathology, Springer Press: New York. pp. 97-170.

Stefanatos, G. A., & DeMarco, A. (2012). Central Auditory Disorders. In V. S. Ramachandran (Ed.), Encyclopedia of Human Behavior (2nd ed.). Oxford: Elsevier.

Stefanatos, G. A., & Baron, I. S. (2011). The Ontogenesis of Language Impairment in Autism: A Neuropsychological Perspective. Neuropsychology Review, 21(3), 252-270.

Stefanatos, G. A. (2011). Changing perspectives on Landau-Kleffner Syndrome. The Clinical Neuropsychologist, 25(6), 963-988.

Stefanatos, G. A., & DeMarco, A. (2010). Landau-Kleffner Syndrome. In J. E. Morgan, J. H. Ricker & I. S. Baron (Eds.), Casebook of Clinical Neuropsychology (pp. 136-163). Oxford: Oxford University Press.

Stefanatos, G. A., & Postman-Caucheteux, W. (2009). The genetics of language. In G. Koob, M. Le Moal & R. F. Thompson (Eds.), Encyclopedia of Behavioral Neuroscience (pp. 583-588). Oxford, UK: Elsevier Science.

Stefanatos, G. A. (2008). Regression in Autistic Spectrum Disorders. Neuropsychology Review, 18(4), 305-319.

Brown, R.T., Daly, B.P., and Stefanatos, G.A. (2008) Learning Disabilities: Complementary Views from Neuroscience, Neuropsychology, and Public Health. In E. Fletcher-Janzen & C. R. Reynolds (Eds.), Neuropsychological Perspectives on Learning Disabilities in the Era of RTI. John Wiley & Sons: Hoboken New Jersey. pgs. 159-178.

Stefanatos, G.A., Joe, W. (2008) Autistic disorder. The Textbook of Clinical Neuropsychology, J.E. Morgan & J.H. Ricker (Eds.), Swets and Zeilinger: Netherlands. pgs. 185-260.

Stefanatos, G.A., Joe, W. (2008) Pervasive developmental disorders. In J.E. Morgan & J.H. Ricker (Eds.), The Textbook of Clinical Neuropsychology, Swets and Zeilinger: Netherlands, pgs 261-307.

Wasserstein, J., Vadhan, N.P., Stefanatos, G.A,. & Barboza K. (2008) Outcome of NLD Adults: A Naturalistic Study. In L.E. Wolf, H.E. Schreiber, and J Wasserstein (Eds.), Adult Learning Disorders: Contemporary Issues. Psychology Press: New York. pgs.462-491.

Stefanatos, G. A., Joe, W. Q., Aguirre, G. K., Detre, J. A., & Wetmore, G. (2008). Activation of human auditory cortex during speech perception: Effects of monaural, binaural, and dichotic presentation. Neuropsychologia, 46(1), 301-315.

Ross, J. L., Roeltgen, D. P., Stefanatos, G., Benecke, R., Zeger, M. P., Kushner, H., et al. (2008). Cognitive and motor development during childhood in boys with Klinefelter syndrome. American Journal of Medical Genetics A, 146A(6), 708-719.

Stefanatos, G. A. (2008). Speech perceived through a damaged temporal window: lessons from word deafness and aphasia. Seminars in Speech and Language, 29(3), 239-252.

Stefanatos, G. A., & Baron, I. S. (2007). Attention-deficit/hyperactivity disorder: A neuropsychological perspective towards DSM-V. Neuropsychology Review, 17(1), 5-38.

Zinn, A. R., Roeltgen, D., Stefanatos, G., Ramos, P., Elder, F. F., Kushner, H., et al. (2007). A Turner syndrome neurocognitive phenotype maps to Xp22.3. Behavioral and Brain Functions, 3.

Swanson, J. M., Kinsbourne, M., Nigg, J., Lanphear, B., Stefanatos, G. A., Volkow, N., et al. (2007). Etiologic subtypes of attention-deficit/hyperactivity disorder: Brain imaging, molecular genetic and environmental factors and the dopamine hypothesis. Neuropsychology Review, 17(1), 39-59.

Stefanatos, G. A., Braitman, L. E., & Madigan, S. (2007). Fine grain temporal analysis in aphasia: Evidence from auditory gap detection. Neuropsychologia, 45(5), 1127-1133.

Stefanatos, G. A., Gershkoff, A., Joe, W. Q., & Ieuji, Y. (2006). Electrophysiological effects of a neuropharmacologic treatment in aphasia. Brain and Language, 99(1-2), 138-139.

Stefanatos, G. A., Gershkoff, A., & Madigan, S. (2005). Computer-mediated tools for the investigation and rehabilitation of auditory and phonological processing in aphasia. Aphasiology, 19(10-11), 955-964.

Stefanatos, G. A., Gershkoff, A., & Madigan, S. (2005). On pure word deafness, temporal processing, and the left hemisphere. Journal of the International Neuropsychological Society, 11(4), 456-470.

Ross, J. L., Stefanatos, G. A., Kushner, H., Bondy, C., Nelson, L., Zinn, A., et al. (2004). The effect of genetic differences and ovarian failure: Intact cognitive function in adult women with premature ovarian failure versus Turner syndrome. Journal of Clinical Endocrinology & Metabolism, 89(4), 1817-1822.

Ross, J. L., Roeltgen, D., Stefanatos, G. A., Feuillan, P., Kushner, H., Bondy, C., et al. (2003). Androgen-responsive aspects of cognition in girls with Turner syndrome. Journal of Clinical Endocrinology & Metabolism, 88(1), 292-296.

Stefanatos, G. A., Kinsbourne, M., & Wasserstein, J. (2002). Acquired epileptiform aphasia: A dimensional view of Landau-Kleffner syndrome and the relation to regressive autistic spectrum disorders. Child Neuropsychology, 8(3), 195-228.

Ross, J. L., Stefanatos, G. A., Kushner, H., Zinn, A., Bondy, C., & Roeltgen, D. (2002). Persistent cognitive deficits in adult women with Turner syndrome. Neurology, 58(2), 218-225.

Stefanatos, G. A., & Wasserstein, J. (2001). Attention deficit/hyperactivity disorder as a right hemisphere syndrome - Selective literature review and detailed neuropsychological case studies. In J. Wasserstein, L. Wolf and F. Lefever (eds), Adult Attention Deficit Disorder: Brain Mechanisms and Life Outcomes Annals of the New York Academy of Sciences, 931, 172-195.

Stefanatos, G.A. Neuropsychological perspectives on Asperger syndrome (2000) The Journal of Developmental and Learning Disorders, 4(1), 31-58.

Wasserstein, J., & Stefanatos, G. A. (2000). The right hemisphere and psychopathology. Journal of the American Academy of Psychoanalysis, 28(2), 371-395.

Romans, S. M., Stefanatos, G., Roeltgen, D. P., Kushner, H., & Ross, J. L. (1998). Transition to young adulthood in Ullrich-Turner syndrome: Neurodevelopmental changes. American Journal of Medical Genetics, 79(2), 140-147.

Stefanatos, G.A., Kollros, P., Rabinovich, H. and Stone, J. J. (1998) Acquired Epileptiform Aphasia (Landau-Kleffner Syndrome). Current Concepts and Controversies. Journal of Developmental and Learning Disorders, 2 (1), 3-50.

Stefanatos, G.A., Bucholz, E. and Miller, N.F. (1998) Mental rotation: A task for the assessment of visuo-spatial skills in children. Perceptual and Motor Skills , 86(2), 527-536,

Hollander, E., DiMauro, S. Cook, E., Lombard, J., Stefanatos, G. A., Jensen, P., Mott, S. H., Zimmerman, A., Tuchman, R., Chugani, D. C., Chez, M., Levine, J., Iverson, L., Kornblum, H., Greisbach, A., Miller, B., Robinson, R., Trauner, D. A., Nespeca, M. P., Iversen, P. and Iversen, J. (1998) Autism Screening and Diagnostic Evaluation : CAN Consensus Statement. CNS Spectrums. 3(3), 30-40.

Stefanatos, G.A., and Black, L.M. (1997) Contributions of neuropsychological assessment to the diagnosis and treatment of developmental and learning disorders. Journal of Developmental and Learning Disorders, 1(1), 9-59, 1997.

Stefanatos, G. A., Foley, C., Grover, W., & Doherty, B. (1997). Steady-state auditory evoked responses to pulsed frequency modulations in children. Evoked Potentials-Electroencephalography and Clinical Neurophysiology, 104(1), 31-42.

Dager, A. P., Kollros, P. R., Stefanatos, G. A., Flanders, A. E., & Rabinovich, H. (1997). Temporal lobe lactate elevation MRI spectroscopy in childhood idiopathic language deterioration. Annals of Neurology, 42(3), P108-P108.

Intenzo, C. M., Kollros, P., Stefanatos, G., Zhang, J. J., Kim, S. M., & Rabinovich, H. (1997). The use of brain SPECT in childhood idiopathic language deterioration. Radiology, 205, 728-728.

Intenzo, C. M., Kollros, P., Kim, S. M., Stefanatos, G., & Zhang, J. J. (1996). Tc-99m ECD brain SPECT for the diagnosis of Landau-Kleffner syndrome: Correlation with MR imaging and clinical outcome. Radiology, 201, 415-415.

Stefanatos, G. A., Grover, W., & Geller, E. (1995). Corticosteroid treatment of language regression in pervasive developmental disorder. Journal of the American Academy of Child and Adolescent Psychiatry, 34(8), 1107-1111.

Ross, J. L., Stefanatos, G., Roeltgen, D., Kushner, H., & Cutler, G. B. (1995). Ullich-Turner Syndrome - Neurodevelopmental changes from childhood through adolescence. American Journal of Medical Genetics, 58(1), 74-82.

Park, C. H., Pham, C. D., Intenzo, C. M., Stefanatos, G., Kollros, P., & Richard, M. D. (1995). Comparison of amitriptyline activated HMPAO brain SPECT with electroencephalography and MR imaging in evaluating children with pervasive developmental disorders. Radiology, 197, 252-252.

Stefanatos, G. A., & Musikoff, H. (1994). Specific neurocognitive deficits in Cornelia de Lange syndrome. Journal of Developmental and Behavioral Pediatrics, 15(1), 39-43.

Stefanatos, G., Grover, W., Foley, C., & Swanson, J. (1993). Steady-state evoked responses in children with developmental language disorders. Journal of Clinical and Experimental Neuropsychology, 15(3), 414-414.

Stefanatos, G. A. (1993). Frequency modulation analysis in children with Landau-Kleffner syndrome. Annals of the New York Academy of Sciences, 682, 412-414.

Stefanatos, G. A., Green, G. G., & Ratcliff, G. G. (1989). Neurophysiological evidence of auditory channel anomalies in developmental dysphasia. Archives of Neurology, 46(8), 871-875.

Green, G. G. R., Rees, A., & Stefanatos, G. A. (1980). A method for recording evoked responses to frequency modulated sounds in man. Journal of Physiology-London, 307(OCT), P10-P10.

Brouwers, P., Mononen, L. J., & Stefanatos, G. A. (1980). Visual-field differences in recognition of male and female faces. Perceptual and Motor Skills, 51(2), 627-633.

Corballis, M. C., Nagourney, B. A., Shetzer, L. I., & Stefanatos, G. (1978). Mental rotation under head tilt: factors influencing the location of the subjective reference frame. Perception and Psychophysics, 24(3), 263-273.

Grants & Contracts

Dr. Stefanatos has received funding from the National Institute on Deafness and Communicative Disorders, the National Institute of Child Health and Development, the Pennsylvania Department of Health and the Albert Einstein Society.


Dr. Stefanatos’ recent explorations of the nature and basis of neurogenic language disorders integrate neuropsychological/neurolinguistic approaches to the study of brain function with advanced functional neuroimaging techniques, such as brain electrical source localization and functional magnetic resonance imaging. His interdisciplinary work on acquired epileptiform aphasia and regressive autism resulted in passage of a congratulatory resolution (HR 307) (click here) by the General Assembly of the Commonwealth of Pennsylvania in 1997, in recognition of his scientific and clinical contributions. He has extended his work in this area to studies seeking to understand brain plasticity and the changes that accompany recovery from stroke and other cerebrovascular insults to the brain. Among the studies currently under way, he is examining the extent to which pharmacologic and behavioral interventions promote adaptive functional and structural changes in brain organization and enhance recovery of function.

Dr. Stefanatos has written numerous articles published in scientific journals and has authored several chapters in textbooks in the field of neuropsychology and cognitive neuroscience. These have covered conditions such as attention deficit hyperactivity disorder, autism, Asperger's disorder, developmental language disorder, and aphasia. His editorial responsibilities have included reviewing research papers for "Brain and Development, “Brain and Cognition, Neuropsychologia, Biological Psychiatry, Child Neuropsychology, Journal of Child Psychology and Psychiatry, the Journal of Developmental and Learning Disorders, Neuropsychiatric Genetics, Neurocase, Clinical Neuropsychologist, and Journal of Neuropsychological Rehabilitation. He has also served on scientific review committees for the National Institute of Health.

Clinical Interests

Areas of Specialization

Pediatric and adult neuropsychology
Functional magnetic resonance imaging of auditory and language processing
Cognitive neurophysiology (Event-Related Potentials)
Developmental disorders