Analysis of binocular summation using multifocal visual evoked potentials

Norihiro Nagai, Itaru Kimura, Hisao Ohde, Kei Shinoda, Kazunori Kita, Yukihiko Mashima, Yoshihisa Oguchi

Research output: Contribution to journalArticlepeer-review


Purpose : To investigate the effect of binocular vision in various portions of the visual field using multifocal visual evoked potentials (mVEPs). Methods : Seven subjects with normal binocular vision were tested. The second-order kernel responses of the mVEPs elicited using a 60-segment dartboard array with a checkerboard pattern were extracted with VERIS Science Ver. 3.01. The ratio (R) of the amplitude of the response elicited during binocular stimulation to that during monocular stimulation was calculated in the following portions of visual field : full, upper, lower, central (central 10-degree circle), and paracentral (10- to 25-degree annular). Results : The R was 1.26,1.15,1.36,1.38, and 1.17 in the full, upper, lower, central, and paracentral visual fields, respectively. Conclusions : Binocular summation is also present in mVEPs.

Original languageEnglish
Pages (from-to)711-714
Number of pages4
JournalFolia Ophthalmologica Japonica
Issue number9
Publication statusPublished - 2004 Sept 1


  • Binocular Function
  • Binocular Summation
  • Multifocal Visual Evoked Potentials
  • Visual Field

ASJC Scopus subject areas

  • Ophthalmology


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