Cerebral Functional Magnetic Resonance Imaging and Multifocal Visual Evoked Potentials in a Patient with Unexplained Impairment of Visual Function: A Case Report

Olav H. Haugen, Sten Andréasson, Lars Ersland, Alexander R. Craven, Kenneth Hugdahl

Research output: Contribution to journalArticlepeer-review

Abstract

We present a case of a young female with a slowly progressing visual impairment who was examined with multifocal visual evoked potentials and functional magnetic resonance imaging (fMRI) for underlying neuronal abnormality. The fMRI examination consisted of presenting black-and-white checkerboard stimuli, and her activation patterns were compared to the patterns from 4 normal-sighted subjects. The results showed clear differences in neuronal activation between the patient and the controls in the occipital and parietal lobes. Although we have shown neuronal correlates in a case of unexplained visual loss, it is still an open question as to whether this has an organic or functional cause, which should be the subject for future research.

Original languageEnglish
Pages (from-to)269-278
JournalCase Reports in Ophthalmology
Volume9
Issue number2
Early online date2018 May 24
DOIs
Publication statusPublished - 2018

Subject classification (UKÄ)

  • Ophthalmology

Keywords

  • Functional magnetic resonance imaging
  • Migraine with visual aura
  • Multifocal visual evoked potentials
  • Unexplained visual loss

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