Journal ArticleDOI
Effects of contrast, orientation and binocularity in the pattern evoked potential
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TLDR
Monocular and binocular visual evoked potentials were studied as a function of modulation depth (contrast) of a counterphase sinusoidal grating stimulus.About:
This article is published in Vision Research.The article was published on 1985-01-01. It has received 56 citations till now. The article focuses on the topics: Monocular vision & Binocular vision.read more
Citations
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Motion Opponency in Visual Cortex
TL;DR: These results provide further evidence that: (1) direction-selective signals underly human MT+ responses, (2) neuronal signals inhuman MT+ support visual motion perception, (3) humanMT+ is homologous to macaque monkey MT and adjacent motion sensitive brain areas, and that fMRI measurements are correlated with average spiking activity.
Journal ArticleDOI
M and P components of the VEP and their visual field distribution.
Heidi A. Baseler,Erich E. Sutter +1 more
TL;DR: The results suggest that contributions to the VEP from the M pathway precede those from the P pathway, and that the ratio of P/M contributions decreases with eccentricity.
Journal ArticleDOI
Analysis of the stabilized supralinear network
TL;DR: A rate-model neural network composed of excitatory and inhibitory neurons in which neuronal input-output functions are power laws with a power greater than 1 is studied, which yields a transition from supralinear to sublinear summation of network responses to multiple inputs.
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Measurement of spatial contrast sensitivity with the swept contrast VEP
TL;DR: The combined effects of additive noise and window bias were such that the total bias was nearly independent of CRF slope, and Sweep VEP contrast thresholds were shown empirically to be unaffected by changes in the range of contrast swept.
Journal ArticleDOI
The potential importance of saturating and supersaturating contrast response functions in visual cortex.
TL;DR: This article examines the frequency with which supersaturation neurons occur in macaque visual cortex by considering an extension of the Naka-Rushton equation with the capacity to represent nonmonotonic functions.
References
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Journal ArticleDOI
Optical and retinal factors affecting visual resolution.
F. W. Campbell,D G Green +1 more
TL;DR: An improved version of the well-known interference fringe technique which theoretically allows a sinusoidal pattern of very high contrast to be formed directly on the retina to be obtained without prior modification by the optics of the eye is reported.
Journal ArticleDOI
Electrophysiological evidence for the existence of orientation and size detectors in the human visual system
F. W. Campbell,L. Maffei +1 more
TL;DR: The evoked potential in response to a grating alternating in phase at 8 c/s was recorded as a function of contrast from the occiput of man.
Journal ArticleDOI
X and Y cells in the lateral geniculate nucleus of macaque monkeys.
Ehud Kaplan,Robert Shapley +1 more
TL;DR: It is proposed that the magnocellular layers of the macaque monkey's l.g.n. may be homologous to the A and A1 layer of the cat's l.'s l.n., and the great difference in their properties suggests that they have different functions in vision.
Journal ArticleDOI
Source locations of pattern-specific components of human visual evoked potentials. II. Component of extrastriate cortical origin.
D. A. Jeffreys,J. G. Axford +1 more
TL;DR: The measured distributions are compatible with the hypothesis that component C. I, but not C. II, originates in striate cortex, from surface negative cortical activity, and an additive relationship was demonstrated between the half-field and the constituent quadrant VEP distributions.
Related Papers (5)
Electrophysiological evidence for the existence of orientation and size detectors in the human visual system
F. W. Campbell,L. Maffei +1 more