Results 141 to 150 of about 9,283 (178)

The use of weighted quadratic regression for the study of latencies of the P100 component of the visual evoked potential

Electroencephalography and Clinical Neurophysiology/Evoked Potentials Section, 1988
The aim of this study was to determine the range of normal values of the latency of the P100 component of the VEP from a control population. Weighted least squares polynomial regression analysis showed that a quadratic curve best described the relationship between age and latency and separate curves, along with normal ranges, are presented for males ...
M C, Pitt, S J, Daldry
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Binocular summation in visual evoked cortical potential in patients who have significantly different P100 peak latencies in their two eyes

Graefe's Archive for Clinical and Experimental Ophthalmology, 2004
To determine whether binocular summation in visual evoked cortical potential (VEP) is present in patients who have significantly different P100 peak latencies in their two eyes.Twelve patients with unilateral optic neuritis (ON) and 11 normal controls were studied.
Atsushi, Mizota, Akiko, Hoshino, Emiko, Adachi-Usami, Naoya, Fujimoto   +3 more
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Influence of Pupillary Size on $$\overline {{\text{P100}}}$$ Latency Time of Pattern-Reversal VEP

1981
The relation existing between exit pupil of the eye and latency time of pattern-reversal VEP’s major positive component was evaluated. VEP recordings were performed on 5 healthy subjects. The exit pupil of the eye was varied either pharmacologically or by placing stops in front of the eye.
A. Penne, S. Fonda
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A Hospital Based Assessment of the Normative Data for VEP P100 Latencies and Amplitude in Normal Subjects

2023
AbstractAim: The aim of the present study was to assess the normative data for VEP P100 latencies and amplitude innormal subjects.Methods: The study was conducted by the Department of Physiology, Netaji Subhas Medical College andHospital, Bihta, Patna, Bihar, India.
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Normative Data for Peak Latencies and Amplitudes of P100 wave of Pattern Reversal Visual Evoked Potential in Central Indian Population

International Journal of Physiology, 2019
Introduction The visual evoked potentials (VEP s) is an important diagnostic tool used by neurophysiologist, ophthalmologist, neurologists and neurosurgeons as many neurological disorders present with visual abnormalities, particularly when the clinical signs and the results of neuroimaging methods are either non informative or non-conclusive ...
Juhi Agrawal, Subodh Pandey, Vivek Som
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Visual evoked potentials N75 and P100 latencies correlate with urinary δ-aminolevulinic acid, suggesting γ-aminobutyric acid involvement in their generation

Journal of the Neurological Sciences, 1995
Pattern reversal visual evoked potentials were recorded from 31 subjects who were occupationally exposed to lead and 54 non-exposed controls. No significant effects of lead were observed in the general subject population. However, when only non-smokers (17 lead-exposed and 27 controls) were evaluated, significant effects were found.
B M, Solliway, A, Schaffer, H, Pratt, N, Mittelman, S, Yannai   +4 more
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P100 latency of the visual evoked potential by hemifield pattern reversal stimulation during isometric contraction of the unilateral shoulder girdle elevator

International Congress Series, 2005
Abstract We investigated changes in the P100 latency of the visual evoked potential by the hemifield pattern reversal stimulation during isometric contraction of the unilateral shoulder girdle elevator. Muscle contraction force was set at 20% of maximal voluntary contraction.
Kenji Kunita, Katsuo Fujiwara
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Changes in the P100 latency of the visual evoked potential and the saccadic reaction time during isometric contraction of the shoulder girdle elevators

European Journal of Applied Physiology, 2004
We investigated changes in the P100 latency of the visual evoked potential (VEP) and the saccadic reaction time (SRT) in relation to the degree of activity of the shoulder girdle elevators. Muscle force was set in 10% increments from 0% to 50% of the maximal voluntary contraction (MVC).
Kenji, Kunita, Katsuo, Fujiwara
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[Long-term prolongation of direct pupillary light reflex latency and P100 latency of pattern visual evoked potential in unilateral optic neuritis].

Nippon Ganka Gakkai zasshi, 1995
We evaluated the visual functions of visual acuity, color sense, direct pupillary light reflex and pattern visual evoked potentials (P100) in five patients with unilateral optic neuritis whose visual acuity improved to 1.0 or better in order to assess the recovery of the impaired optic nerve fibers from the inflammatory process.
S, Chin, Y, Suzuki, T, Ohashi, M, Kase
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Latency Differences of N20, P40/N60, P100/N140 SEP Components after Stimulation of Proximal and Distal Sites of the Median Nerve

Clinical EEG and Neuroscience, 2006
The latencies of SEP N20, P40, N60, P100, and N140 components were measured after stimulation of two different sites, and the differences in relation to conduction velocity and their central functions are discussed. Subjects were 8 healthy right-handed males (age 22–31 years, height 164–184 cm).
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