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  • Bach-y-Rita, Paul et al. "Form perception with a 49-point electrotactile stimulus array on the tongue: A technical note." Journal of Rehabilitation Research and Development, 1998.
  • Blakeslee, Sandra. "New Tools to Help Patients Reclaim Damaged Senses." New York Times, Nov. 23, 2004.
  • Kaczmarek, Kurt, Ph.D. "Tongue Display Technology." University of Wisconsin, Aug. 18, 2005.
  • Kupers, Ron et al. "Activation of visual cortex by electrotactile stimulation of the tongue in early-blind subjects." Human Brain Mapping 2003.
  • Manning, Joe. "Device may be new pathway to the brain." JS Online, Dec. 7, 2004.
  • Phone interview with Kurt Kaczmarek, Ph.D., Senior Scientist, University of Wisconsin Department of Orthopedics and Rehabilitation Medicine. July 7, 2006.
  • Ptito, Maurice et al. "Cross-modal plasticity revealed by electrotactile stimulation of the tongue in the congenitally blind." Brain, 2005.
  • U.S. Patent #6,430,450. "Tongue placed tactile output device."
  • Wicab, Inc.
  • "Wicab to present BrainPort at Boston conference." WTN News. Oct. 4, 2005.