The effect of filter bandwidth on the multifocal visual evoked cortical potential

Effect of blue-light filtering on multifocal visual-evoked potentials.

PURPOSE To perform an objective functional assessment of the impact of blue-light filters on cortical processing to evaluate the potential side effects of the filters on higher tier visual function at the neural level. SETTING Department of Ophthalmology, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany. DESIGN Cohort study. METHODS Multifocal pattern-reversal visual-evoked pote...

Assessing the Effect of Opium Dependence on Visual Evoked Potential (VEP) in Men

Abstract Background: Opium-dependence having different effects on the nervous system is a common problem, especially in the Middle East and Iran. The aim of this study is evaluating the effects of opium-dependence on visual evoked potential (VEP) in men. Methods: Thirty subjects with both chronic cigarette smoking and opium-dependence (group 1) and 30 subjects with only chronic ciga...

The spatial distribution of selective attention assessed using the multifocal visual evoked potential

To determine the manner in which attention is distributed among numerous locations in the visual space, we used a multifocal recording technique that allowed simultaneous recordings of evoked cortical activity from 12 visual field areas out to 23.6 degrees. We found that multifocal visual evoked potential (mfVEP) amplitude was larger when a region of visual space was attended than when it was n...

The effects of glaucoma on the latency of the multifocal visual evoked potential

Comparison of visual evoked potential changes in patients with alzheimer, vascular dementia and minimal cognitive Impairment with healthy people: a case-control study

Background: Alzheimer dementia as the most common cause of dementia is a chronic, progressive, irreversible and incurable disease. The second most common cause of dementia after Alzheimer is vascular dementia. One of the systems involved in dementia is the visuospatial system and visual evoked potential (VEP) can be one of the diagnostic methods for this disease. Therefore, the present study ai...