University of Southern California Department of Biomedical Engineering The USC Andrew and Erna Viterbi School of Engineering USC
Steven Walston, Ph.D. Student in Biomedical Engineering

Address:   USC Vision Research Center
                 1355 San Pablo Street, Suite 182
                 Los Angeles, CA 90033
Phone:      (323) 442-6765
Fax:          (323) 442-6755



Steven Walston completed his B.E. in Biomedical Engineering at Vanderbilt University in 2010.  While at Vanderbilt, he spent three semesters in the Casagrande Vision Research Lab analyzing orientation tuning curves in the primary visual cortex using multi-electrode arrays.  He also spent an internship at the National Eye Institute investigating the morphology of blue cone bipolar cells against various photoreceptor mosaics.  Additionally, at Johnson & Johnson CPPW, he examined the mechanisms of skin repair after mechanical injury.  Steven joined the USC's PhD program in Biomedical Engineering in the Fall of 2010.

Current Research:
Steven's current work is focused on selectively stimulating subsets of retinal ganglion cells by leveraging differences in their physiological and electrical properties.

Research Interest: 

Retinal Prosthesis, Electrical Stimulation, Retinal Neurophysiology, Calcium Imaging


ST Walston, AC Weitz, JG Rohan, P Hegde, JD Weiland.  Delivering Genetically Encoded Indicators via Organically Modified Silica Nanoparticles to Assess Retinal Prostheses Electrical Stimulation.  15th Annual Fred S. Grodins Graduate Research Symposium (2011)

ST Walston, M Chu, PR Bargo, N Kollias. In vivo investigation of the evolution of skin barrier repair after mechanical injury. Proc. SPIE (2011)