Journal ArticleDOI
Summation of Retinal Potentials
TLDR
The computer has been used to detect electroretinograms which were used in an investigation of area-luminance and stray-light effects within the eye and the waveform of the response was found to depend on both the color and the position of the stimulus on the retina.Abstract:
The operation of a computer which averages low-amplitude electroretinograms is described. The computer has been used to detect electroretinograms which were recorded in an investigation of area-luminance and stray-light effects within the eye. Large test stimuli were found to be more effective than small for producing responses of fixed size. Although the observers reported that the stimulus spread over much of the retina larger photopic responses appeared when the stimulus was centered on the fovea than on neighboring areas. The waveform of the response was found to depend on both the color and the position of the stimulus on the retina.read more
Citations
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Journal ArticleDOI
Some characteristics of average steady-state and transient responses evoked by modulated light.
TL;DR: An apparatus has been developed to study the phase-locked occipital response at stimulus frequency evoked by modulated light and an average steady-state response has been found and identified mainly with the central retinal region.
Journal ArticleDOI
Evoked responses to clicks and electroencephalographic stages of sleep in man.
TL;DR: The results provide additional evidence that the emergent low-voltage stage is a neurophysiologically unique phase.
Journal ArticleDOI
The pattern electroretinogram
T A Berninger,Geoffrey B. Arden +1 more
TL;DR: The PERG permits the examination of an additional level of the retina and helps the understanding of pathophysiology of various eye diseases, and is of clinical importance in routine diagnosis and assessment.
Journal ArticleDOI
Some properties of components of the cat electroretinogram revealed by local recording under oil.
G. B. Arden,K. T. Brown +1 more
TL;DR: The efficacy of the method has been explained on the assumption that the radial resistance of the retina is so small, in relation to that of the R-membrane, that no voltage drop could be recorded through the retina itself in response to activity generated at distant sites.
Journal ArticleDOI
Cortical responses to stimulation of the human fovea.
TL;DR: Several lines of evidence indicate that the VER provides a valid objective index of foveal function and excellent agreement between the VER and subjective thresholds in studies of the area-intensity relation, Stiles-Crawford effect and spectral sensitivity.
References
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Journal ArticleDOI
The Luminous Efficiency of Rays Entering the Eye Pupil at Different Points
Walter Stiles,B. H. Crawford +1 more
TL;DR: In this article, a variable graduated neutral wedge is inserted at the aperture P and this enables the two halves of the photometric field to be adjusted to equality of brightness by the subject.
Journal ArticleDOI
Crosscorrelation and autocorrelation studies of electroencephalographic potentials
TL;DR: It is shown that some additional information can be brought into the study of brain potentials by techniques developed in communication engineering by applying crosscorrelation analysis and autocorrelation analysis when no automatic correlator is available.
Journal ArticleDOI
Eye Movements Recorded During Convergence and Divergence
TL;DR: It is concluded that when fusion is maintained, the images of a fixation object are brought to corresponding areas of the retina to an accuracy of about two minutes of arc, consistent with the reported sizes of Panum’s area and the region of optimal visual resolution.