Roy Hoshi Hamilton

faculty photo
Assistant Professor of Neurology
Department: Neurology

Contact information
Goddard Laboratories, Room 518
University of Pennsylvania
3710 Hamilton Walk
Philadelphia, PA 19104
Office: 215-573-7065
Fax: 215-898-1982
Graduate Group Affiliations
Education:
BA (Psychology, magna cum laude)
Harvard University, 1995.
MS (Health Sciences and Technology)
Massachusetts Institute of Technology , 2001.
MD (Medicine, cum laude)
Harvard Medical School, 2001.
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Description of Research Expertise

My research focus is on the characteristics and limits of functional neuroplasticity in the adult human brain. I investigate how the brain reorganizes itself in response to injury, and whether or not it is possible to enhance the brain’s potential for reorganization in order to speed rehabilitation using noninvasive electrical or magnetic brain stimulation. A second area of interest for me is on the use of noninvasive brain stimulation to elucidate and enhance mechanisms of cognition in healthy individuals, and the biological, social, and ethical implications of neural enhancement.

Description of Other Expertise

I am deeply interested in medical education. I am heavily involved in medical student education in Neurology at the University of Pennsylvania School of Medicine, and I am the faculty director of the University of Pennsylvania School of Medicine Pipeline Program, multi-tiered neuroscience education program for inner-city high schools in Philadelphia.

Description of Itmat Expertise

Noninvasive brain stimulation
Neuroplasticity following brain injury
Multisensory integration

Selected Publications

Hamilton, R.H., Wiener, M., Drebing, D.E., Coslett, H.B.: Gone in a flash: manipulation of audiovisual temporal integration using transcranial magnetic stimulation. Frontiers in Psychology: Perception Science Sept 2013.

Garcia, G., Catherine, N., Faseyitan, O., Naeser, M.A., Hamilton, R.H.: Utilizing repetitive transcranial magnetic stimulation to improve language function in stroke patients with chronic non-fluent aphasia. Journal of Visual Experimentation(77), July 2013.

Mesquita, R.C., Faseyitan, O.K., Turkeltaub, P.E., Buckley, E.M., Thomas, A., Kim, M.N., Greenberg, J.H., Detre, J.A., Yodh, A.G., Hamilton, R.H.: Blood flow and oxygenation changes due to low-frequency repetitive transcranial magnetic stimulation of the cerebral cortex. Journal of Biomedical Optics 18(6): 67006, June 2013.

Chrysikou E.G., Hamilton R.H., Coslett H.B., Datta A., Bikson M., Thompson-Schill S.L.: Noninvasive transcranial direct current stimulation over the left prefrontal cortex facilitates cognitive flexibility in tool use. Cognitive Neuroscience 4(2): 81-89, June 2013.

Medina, J. Beauvais, J. Datta, A. Bikson, M. Coslett, H B. Hamilton, R H.: Transcranial direct current stimulation accelerates allocentric target detection. Brain Stimulation 6(3): 433-9, May 2013.

De Rojas, J., Saunders, J., Luminais, C., Hamilton, R., Siegel, S.: Electroencephalographic changes following direct current deep brain stimulation of auditory cortex: a new model for investigating neuromodulation. Neurosurgery 72(2): 267-275, Feb 2013.

Patel S., Lee, E.B., Xie, S.X., Law, A., Jackson, E.M., Arnold, S.E., Clark, C.M., Shaw, L.M., Grady, M.S., Trojanowski, J.Q., Hamilton, R.H.: Phosphorylated tau/amyloid beta 1-42 ratio in ventricular cerebrospinal fluid reflects outcome in idiopathic normal pressure hydrocephalus. Fluids Barriers CNS 9(1): 7, Mar 2012

Wiener, M., Kliot, D., Turkeltaub, P., Hamilton, R., Wolk, D., Coslett, H.B.: Parietal influence on temporal encoding indexed by simultaneous transcranial magnetic stimulation and electroencephalography. Journal of Neuroscience 32(35): 12258-67, Aug 2012.

Medina, J., Norise, C., Faseyitan, O., Coslett, H.B., Turkeltaub, P.E., Hamilton, R.H. : Finding the right words: transcranial magnetic stimulation improves discourse productivity in non-fluent aphasia after stroke. Aphasiology 26(9): 1153-1168, Aug 2012.

Lupyan G., Mirman D., Hamilton R., Thompson-Schill S.: Categorization is modulated by transcranial direct current stimulation over left prefrontal cortex. Cognition 124(1): 36-49, Jul 2012.

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Last updated: 04/22/2014
The Trustees of the University of Pennsylvania