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Dynamic random dot stimuli offer the possibility to study cortical neuronal mechanisms related to depth perception in man because these stimuli operationally skip all stages prior to the activation of cortical binocular disparity neurones. In the present paper, the scalp topography of brain potential components evoked by stereoscopic stimuli are compared(More)
Electroretinographical responses to brightness (H-ERG, Ganzfeld illumination) and pattern reversal (M-ERG, illuminating an area of 20 degrees) were recorded in two cases of occlusion of the temporal inferior branch of the retinal artery. While the H-ERG exhibited essentially normal responses, the M-ERG was markedly disturbed. With central fixation the(More)
Electroretinograms to brightness stimuli (H-ERG) and pattern reversal (M-ERG) were recorded in patients with branch occlusion of the retinal artery (8 cases) and retinal veins (6 cases). While the H-ERG exhibited essentially normal curves, the M-ERG was regularly disturbed. With central fixation the amplitude of response was markedly decreased. With(More)
Cortical potentials evoked by dynamic random dot stereograms were recorded in 15 normal subjects and 19 patients with impaired stereoscopic vision. The potentials obtained were compaired with those evoked by similarly arranged checkerboard contrast stimuli, binocularly presented. The two modes of stimulation yielded potentials of similar component latencies(More)
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