The human visual evoked response
نویسندگان
چکیده
منابع مشابه
The visual evoked response in hysterical amblyopia.
Hysterical amblyopia is a term used to describe a syndrome in which reduction of visual acuity accompanied by contraction of the visual fields occurs in the absence of any organic lesion. This syndrome has been the subject of many reports (Eames, I 947; Yasuna, 1951; Schlaegel and Quilala, 1955; Krill, I967), but no conclusive diagnostic test has yet been established. Spiralling of the visual f...
متن کاملVisual Evoked Cortical Response in the Cat.
The cortical response of the cat to light fashes has been studied, the locus of greatest amplitude of response noted, and the conformation described. Recordings through the dura indicate that there is diminution of the response amplitude and reduction of localization caused by the dura. The effects of stimulus parameter changesy of application of strychnine locally, and of intravenous pentobarb...
متن کاملLocalization of the human visual evoked response. Early components specific to visual stimulation.
The objectives of this study were to iden tify components of the human visual evoked response (VER) most directly related to vis ual stimulation and to localize their origin by scalp recording. The approach used was to study differences in the visual evoked re sponse to stimulation of various regions of the visual field. Early attempts at analyses of this type showed a greater correlation wi...
متن کاملAn fMRI study of human visual cortex in response to spatiotemporal properties of visual stimuli
ABSTRACT Background: The brain response to temporal frequencies (TF) has been already reported, but with no study reported for different TF with respect to various spatial frequencies (SF). Materials and Methods: fMRI was performed by 1.5T GE-system in 14 volunteers during checkerboard, with TFs of 4, 6, 8 and 10Hz in low and high SFs of 0.5 and 8cpd. Results: Average percentage BOLD signa...
متن کاملVisual function and pattern visual evoked response in optic neuritis.
The disparity between clinical visual function and pattern visual evoked response (VER) was studied in 53 patients who had suffered an attack of optic neuritis (ON) more than six months before. The visual functions tested included Snellen visual acuity, colour vision, visual field, and contrast sensitivity. The effect of pattern presentation, check size, and luminance was tested by recording VE...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Electroencephalography and Clinical Neurophysiology
سال: 1970
ISSN: 0013-4694
DOI: 10.1016/0013-4694(70)90056-8