Results 11 to 20 of about 10,842 (166)

The Correlation of P100 Latency and P100 Amplitude in Patients with Schizophrenia and Migraine Headache Using Visual Evoked Potentials (VEPS)

International Journal on Biomedicine and Healthcare, 2022
Background: The VEPs provide an objective measure of brain function, analyzing integrity of visual processing. With patients affected with schizophrenia, the changes with the implementation of VEP are evident, such as symmetrical deceleration of the impulse (reduction of the amplitude) and the continuance of latency, which points to a degenerative ...
Gorana Sulejmanpasic, Amra Serdarevic, Selma Hajric   +2 more
openaire   +1 more source

Comparative study between visual evoked potential and visual acuity, field of vision, and fundus examination as screening tool for early diagnosis of hydroxychloroquine and chloroquine retinal toxicity in rheumatic patients

Journal of Medicine in Scientific Research, 2020
Objectives The current study was conducted to compare between the conventional eye examination methods named as visual acuity, fundus examination, and field of vision evaluation in one hand and electrophysiologic methods of eye examination as visual ...
Abeer H Ismaiel, Amal Arafa Mohsen, Assem Anwar   +2 more
doaj   +1 more source

A feasibility study for objective evaluation of visual acuity based on pattern-reversal visual evoked potentials and other related visual parameters with machine learning algorithm

BMC Ophthalmology, 2023
Background To develop machine learning models for objectively evaluating visual acuity (VA) based on pattern-reversal visual evoked potentials (PRVEPs) and other related visual parameters.
Jian Zheng Chen, Cong Cong Li, Shao Heng Li, Yu Ting Su, Tao Zhang, Yu Sheng Wang, Guo Rui Dou, Tao Chen, Xiao Cheng Wang, Zuo Ming Zhang   +9 more
doaj   +1 more source

Early stage visual-orthographic processes predict long-term retention of word form and meaning: A visual encoding training study [PDF]

, 2013
Adult learners of Chinese learned new characters through writing, visual chunking or reading-only. Following training, ERPs were recorded during character recognition tasks, first shortly after the training and then three months later.
Cao, Fan, Chan, Derek Ho Lung, Harris, Lindsay N., 1979--, Perfetti, Charles A., Rickles, Ben, Stafura, Joseph, Vu, Marianne, Xu, Yi, Zhu, Ziheng   +8 more
core   +2 more sources

Early disability in ambulatory patients with multiple sclerosis: optical coherence tomography versus visual evoked potentials, a comparative study

The Egyptian Journal of Neurology, Psychiatry and Neurosurgery, 2020
Background Multiple sclerosis (MS) is a common cause of neurological disabilities in adults and commonly affects the visual pathway. The objective of this study is to assess and compare the sensitivity of visual evoked potentials (VEP) and optical ...
Mohamed N. Thabit, Mahmoud Mohamed Farouk, Martha Awni, Al-Amir Bassiouny Mohamed   +3 more
doaj   +1 more source

Diagnostic Capability of Isolated-Check Visual Evoked Potential for Early to Moderate Primary Open-Angle Glaucoma

Life, 2023
This study aimed to evaluate the diagnostic capability of isolated-check visual evoked potential (icVEP) for primary open-angle glaucoma (POAG) via comparison with visual field (VF) tests and pattern visual evoked potential (PVEP).
Xia Wang, Yuan Fang, Ruoshi Li, Yingzi Pan   +3 more
doaj   +1 more source

BLAST05: Power Spectra of Bright Galactic Cirrus at Submillimeter Wavelengths [PDF]

, 2009
We report multi-wavelength power spectra of diffuse Galactic dust emission from BLAST observations at 250, 350, and 500 microns in Galactic Plane fields in Cygnus X and Aquila.
Arabindo Roy, Boulanger, Calvin B. Netterfield, Carole Tucker, Chapin, Christopher Semisch, David H. Hughes, Desert, Donald V. Wiebe, Douglas Scott, Edward L. Chapin, Gaelen Marsden, Gregory S. Tucker, Guillaume Patanchon, Helou, Hildebrand, James J. Bock, Jeff Klein, Joshua O. Gundersen, Lagache, Li, Luca Olmi, Marc-Antoine Miville-Deschênes, Marco P. Viero, Marie Rex, Mark Halpern, Mark J. Devlin, Markwardt, Matthew D. P. Truch, Matthew Griffin, Miville-Deschênes, Netterfield, Pascale, Patanchon, Peter A. R. Ade, Peter C. Hargrave, Peter G. Martin, Philip Mauskopf, Simon R. Dicker, Truch, Truch, Waller   +41 more
core   +4 more sources

SSA of biomedical signals: A linear invariant systems approach [PDF]

, 2010
Singular spectrum analysis (SSA) is considered from a linear invariant systems perspective. In this terminology, the extracted components are considered as outputs of a linear invariant system which corresponds to finite impulse response (FIR) filters ...
Figueiredo, Nuno, Georgieva, P., Lang, E.W., Santos, I.M., Teixeira, Ana Rita, Tomé, A.M.   +5 more
core   +3 more sources

Quantitative law describing market dynamics before and after interest-rate change [PDF]

, 2010
We study the behavior of U.S. markets both before and after U.S. Federal Open Market Committee (FOMC) meetings, and show that the announcement of a U.S.
A. Joulin, Alexander M. Petersen, D. Sornette, F. Omori, Fengzhong Wang, H. Eugene Stanley, J. B. Carlson, J. P. Bouchaud, M. Piazzesi, R. Cont, R. N. Mantegna, S. Kwan, Shlomo Havlin, T. Utsu   +13 more
core   +2 more sources

Potencial visual evocado por padrão reverso com tabuleiro de xadrez em gatos domésticos adultos

Ciência Rural, 2015
O potencial visual evocado por padrão reverso (PVE-PR) é um método objetivo, não invasivo e estabelecido para as investigações funcionais. Este trabalho teve como objetivo a obtenção de dados do PVE-PR com tabuleiro de xadrez em gatos domésticos adultos,
Nathalia Veronica Carneiro Ferreira, Elton Hugo Lima da Silva Souza, Jéssica Karla Alves da Silva, Valdir Luna da Silva, Bruno Oliveira Ferreira de Souza, Fabrício Bezerra de Sá   +5 more
doaj   +1 more source