نتایج جستجو برای: visual evoked potentials

تعداد نتایج: 483133  

and Mohammad Saber Hashemi Sara Hashemi

Introduction: Visual evoked potentials contain certain diagnostic information which have proved to be of importance in the visual systems functional integrity. Due to substantial decrease of amplitude in extra macular stimulation in commonly used pattern VEPs, differentiating normal and abnormal signals can prove to be quite an obstacle. Due to developments of use of machine l...

Journal: Addiction and Health 2010
Abdol Hamid Sohrabi Akbar Hamzeei moghaddam Marzyeh Karimianpour Mohammad Ali Shafa,

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...

2015
G. Hemalatha Adinarayana Reddy

The term visually evoked potential (VEP) refer to electrical potentials, initiated by brief visual stimuli, which are recorded from the scalp overlying visual cortex, VEP waveforms are extracted from the electro-encephalogram (EEG) by signal averaging. VEPs are used primarily to measure the functional integrity of the visual pathways from retina via the optic nerves to the visual cortex of the ...

Journal: :Journal of Academic Research in Medicine 2020

Journal: :Proceedings of the National Academy of Sciences 1982

Journal: :Electroencephalography and Clinical Neurophysiology/Evoked Potentials Section 1985

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