EARLY WAVELETS IN THE VECP

  • 1 January 1981
    • journal article
    • research article
    • Vol. 20  (1) , 125-129
Abstract
With the use of a Maxwellian view optical system to present light flashes to the right eye, electroretinograms (ERG) and visual evoked cortical potentials (VECP) were recorded from normal subjects. The 1st 120 ms postflash onset was examined. A series of 5 VECP wavelets was recorded with implicit times of 50, 72, 82, 90 and 101 ms at the highest radiance used. Recordings of ERG in the same session revealed a series of 3 wavelets with implicit times of 23, 30 and 38 ms. The VECP wavelets are not volume-conducted from the retina and probably represent initial arrival of visual information at the cortex or subcortical activity.

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