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Literature DB >> 2276317

The human motion onset VEP as a function of stimulation area for foveal and peripheral vision.

Abstract

We studied amplitude of the wave N200 of the motion-onset VEP by varying the side length of a square stimulation field between 0.5 and 7 degrees. A significant increase in amplitude was obtained between 0.5 and 1 degree of side length in central stimulation and between 0.5 and 5 degrees in 10-degree peripheral stimulation. Variations of spatial frequency between 0.34 and 6.8c/deg did not modify the amplitude size, ie, no tuning effect could be found. The results of simultaneous and separate stimulation of foveal and parafoveal regions support the observation that the stimulation field size is a minor influence. Features of motion-sensitive cortical neurons, such as those found in monkeys, could account for this behavior.

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Year: 1990 PMID： 2276317 DOI： 10.1007/bf00146552

Source DB: PubMed Journal: Doc Ophthalmol ISSN： 0012-4486 Impact factor: 2.379

13 in total

The human motion onset VEP as a function of stimulation area for foveal and peripheral vision.

1. Comparison of visual evoked potentials to stationary and to moving patterns.

2. Evoked cortical responses to checkerboard patterns: effect of check-size as a function of retinal eccentricity.

3. The electroretinogram, the visual evoked potential, and the area-luminance relation.

4. Studies on the kinetic visual acuity. The kinetic visual acuity for the visual object of colored light.

5. Analysis of local and wide-field movements in the superior temporal visual areas of the macaque monkey.

6. The influence of grating contrast on the human cortical potential visually evoked by motion.

7. Cortical potentials evoked by a TV pattern reversal stimulus with varying check sizes and stimulus field.

8. Pattern and movement detection in man and rabbit: separation and comparison of occipital potentials.

9. Effect of a parafoveal microlesion made with an argon laser on smooth-pursuit eye movements of monkeys.

10. Electrophysiological evidence for the existence of orientation and size detectors in the human visual system.

1. Motion adaptation in chromatic motion-onset visual evoked potentials.

2. Relationship between motion VEP and perceived velocity of gratings: effects of stimulus speed and motion adaptation.

3. Motion-onset VEPs to translating, radial, rotating and spiral stimuli.

Review 4. A primer on motion visual evoked potentials.

5. The cortical topography of visual evoked potentials elicited by chromatic and luminance motion.