Results 161 to 170 of about 4,424 (197)

The potential of visual evoked potentials latency and amplitude to be a subclinical predictor of clinical prognosis in multiple sclerosis. [PDF]

Ir J Med Sci
Soker EB, Erdem M, Ozdogru D, Gencler OS, Yesiloglu O, Fidanci H.   +5 more
europepmc   +1 more source

Meta-analysis of acupuncture combined therapies for amblyopia: efficacy and safety insights. [PDF]

Front Med (Lausanne)
Tan K, Yu Y, Liu P, Jiang P, Liu Y, Lou B, Peng Q.   +6 more
europepmc   +1 more source

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P100 Latency as a Function of Head Size

The American Journal of EEG Technology, 1991
ABSTRACT.Recent studies of factors affecting the P100 latency of the pattern visual evoked potential (PVEP) have questioned the earlier assumption that gender has a statistically significant effect. Guthkelch et al. (1987) reported that head size is an important variable.
C W Erwin
exaly   +2 more sources

Clinical relevance of phase of steady-state VEPs to P100 latency of transient VEPs

Electroencephalography and Clinical Neurophysiology - Evoked Potentials, 1991
Pattern visual evoked potentials (VEPs) to transient and steady-state stimulation were recorded in 10 normal subjects at 4 levels of luminance (180, 57, 22 and 11 cd/m2). VEPs were also recorded in 5 patients with optic neuropathy at a fixed luminance (180 cd/m2).
Shozo Tobimatsu
exaly   +3 more sources

The relationship of the latency of the visual P100 wave to gender and head size

Electroencephalography and Clinical Neurophysiology - Evoked Potentials, 1987
Six separate recordings of the pattern-reversal visual evoked potentials of 8 male and 8 female healthy adults were made. The average resulting latencies to P100 (LP100) were correlated with head length and circumference as well as with gender and latency to N70 (LN70). There was better correlation of LP100 with head circumference than with gender, and
A N Guthkelch, R J Sclabassi
exaly   +3 more sources

Large Difference in Latency of Visual Evoked Potential P100 Peak in Case of Pattern and Flash Stimulation in a Multiple Sclerosis Patient

Journal of Ophthalmic and Optometric Sciences, 2021
The visual evoked potential is one of the suitable techniques for the diagnosis of multiple sclerosis. There are two stimulation techniques, i.e., pattern reversal checkerboard and flash, to record visually evoked potential. Flash type of stimulation is used in patients with poor visual acuity.
Shushtarian, Seyed Mohammad Masoud, Fatemian, Nazanin   +1 more
openaire   +3 more sources

Gender factor in longer P100 latency of elderly persons

Electroencephalography and Clinical Neurophysiology - Evoked Potentials, 1984
Monocular pattern-shift visual evoked potentials (PSVEPs) were obtained in 26 neurologically and ophthalmologically normal elderly community volunteers (mean age 59.4, males 15, females 11), and compared with similarly obtained data in 26 sex-matched young subjects (mean age 28.1).
Narayan P Verma, Kenneth A Kooi
exaly   +3 more sources

Data preprocessing applied to human average visual evoked potential P100-N140 amplitude, latency, and slope

Psychiatry Research, 1980
Data preprocessing, using principal components and Varimax rotation, was applied to 26 human average visual evoked potential (AVEP) variables representing bilateral amplitudes, latencies, and slopes from the P100 and N140 peaks. Five orthogonal factors, which accounted for about 80% of the variance, were found to describe the data from control subjects,
E A Serafetinides
exaly   +3 more sources

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, Fujiwara Katsuo   +2 more
exaly   +3 more sources

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
exaly   +2 more sources