A high-intensity, goggle-mounted flash stimulator for short-latency visual evoked potentials

  • Pratt H
  • Martin W
  • Zaaroor M
 et al. 
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Abstract

The few studies that have been done on short-latency, subcortical visual evoked potentials (SVEPs) have all used stroboscopic flashes as the evoking stimulus. The dimensions of the stimulator, the acoustical artifacts and the photic spread to the examination room limited the use of SVEPs to research laboratories. With the advent of high-efficiency light-emitting diodes (LEDs), high-intensity flashes can now be generated from goggle-mounted LEDs. In this study, a goggle-mounted high-intensity LED stimulator was constructed and its flashes used to evoke SVEPs. The reproducibility of SVEPs across subjects and the ease of using the high-intensity LED flash stimulator make them a promising candidate for testing subcortical visual pathway function in the operating room. © 1994.

Author-supplied keywords

  • Flash
  • Intraoperative monitoring
  • Light-emitting diodes
  • Visual evoked potentials

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Authors

  • H. Pratt

  • W. H. Martin

  • M. Zaaroor

  • S. E. Schacham

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