Results 11 to 20 of about 5,933 (182)

Optimization of Visual Evoked Potential (VEP) Recording Systems [PDF]

Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques, 2009
Objective:To explore the influence of environmental conditions on pattern visual evoked potential (VEP) recordings.Methods:Fourteen subjects with no known ocular pathology were recruited for the study. In an attempt to optimize the recording conditions, VEP recordings were performed in both the seated and recumbent positions.
Rustum, Karanjia, Donald G, Brunet, Martin W, ten Hove   +2 more
openaire   +2 more sources

Authentication using c-VEP evoked in a mild-burdened cognitive task

Frontiers in Human Neuroscience, 2023
In recent years, more and more researchers are devoting themselves to the studies about authentication based on biomarkers. Among a wide variety of biomarkers, code-modulated visual evoked potential (c-VEP) has attracted increasing attention due to its ...
Zhihua Huang, Zequan Liao, Guojie Ou, Lijun Chen, Ying Zhang   +4 more
doaj   +1 more source

Multimodal evoked potential abnormalities in patients with Wilson's disease [PDF]

Srpski Arhiv za Celokupno Lekarstvo, 2005
The aim of this study was to investigate the involvement of the following functional systems: somatosensory evoked potentials (SSEP), visual evoked potentials (VEP), and event related potentials (ERP), in twenty patients with Wilson's disease (WD).
Ilić Tihomir V., Svetel Marina, Petković Stevan, Kostić Vladimir S.   +3 more
doaj   +1 more source

Prediction of Post-operative Visual Deterioration Using Visual-Evoked Potential Latency in Extended Endoscopic Endonasal Resection of Craniopharyngiomas

Frontiers in Neurology, 2021
Background: The current study aimed to investigate the predictive value of visual-evoked potential (VEP) latency for post-operative visual deterioration in patients undergoing craniopharyngioma resection via extended endoscopic endonasal approach (EEEA ...
Xiaorong Tao, Xiaocui Yang, Xing Fan, Hao You, Yanwen Jin, Jiajia Liu, Dongze Guo, Chuzhong Li, Hui Qiao   +8 more
doaj   +1 more source

Effects of Hemodialysis on Visual Pathways Assessed by Visual Evoked Potentials (VEPs) [PDF]

Noro Psikiyatri Arsivi, 2016
Uremia is a metabolic disorder that affects the functions of the central nervous system (CNS). Visual evoked potentials (VEPs) can be used to demonstrate uremia-induced effects on the CNS. Data on VEPs of patients with chronic renal failure (CRF) are limited.
Sakarya Üniversitesi/Tıp Fakültesi/Dahili Tıp Bilimleri Bölümü, Güzey Aras, Yeşim, Belma Dodan Gungen, Sipahi, Savaş, Bekir Enes Demiryurek, Aras, Yeşim Güzey   +5 more
openaire   +3 more sources

Intraoperative monitoring of flash visual evoked potential under general anesthesia [PDF]

Korean Journal of Anesthesiology, 2017
In neurosurgical procedures that may cause visual impairment in the intraoperative period, the monitoring of flash visual evoked potential (VEP) is clinically used to evaluate visual function.
Hironobu Hayashi, Masahiko Kawaguchi
doaj   +1 more source

Visual evoked potentials in patients after methanol poisoning

International Journal of Occupational Medicine and Environmental Health, 2016
Objectives: We report the results of the visual evoked potentials (VEP) examination in patients after severe poisoning by methanol. Material and Methods: The group of 47 patients (38 males and 9 females) was assembled out of persons who survived an ...
Pavel Urban, Sergey Zakharov, Pavel Diblík, Daniela Pelclová, Petr Ridzoň   +4 more
doaj   +1 more source

Correlation Between VEP Latency, CDR and PSD On Standard Automated Perimetry In Newly Diagnosed POAG Cases

Delhi Journal of Ophthalmology, 2018
Aim and Objective:- The current study was conducted to find out the correlation between Pattern reversal VEP (visual evoked potential) parameters, standard automated perimeter parameters and cup disc ratio (CDR) in newly diagnosed cases of POAG (primary ...
Shikha Baisakhiya, Gurdev Lal Goyal, Punita Garg, Zahid Khan   +3 more
doaj   +1 more source

Effect of smoking on visual evoked potential (VEP) and visual reaction time (VRT)

Asian Journal of Medical Sciences, 2020
Background: Nicotine in tobacco smoke causes demyelination. Again, hypoxia in long-term smokers is linked to neuropathy. Visual receptors are early sufferer of neuropathy.
Karishma Rajbhandari Pandey, Dipesh Raj Panday , Nirmala Limbu , Bhupendra Shah , Kopila Agarwal   +4 more
doaj   +1 more source

Feature Extraction of Visual Evoked Potentials Using Wavelet Transform and Singular Value Decomposition [PDF]

Iranian Journal of Medical Physics, 2018
Introduction: Brain visual evoked potential (VEP) signals are commonly known to be accompanied by high levels of background noise typically from the spontaneous background brain activity of electroencephalography (EEG) signals.
Ahmed Almurshedi, Abd Khamim Ismail, Najwa Sulaiman   +2 more
doaj   +1 more source