Visual cortex responses to abrupt changes in the periodicity of rapidly intermittent light

Electroencephalography and Clinical Neurophysiology
G H MowbrayJ F Bird

Abstract

Visually evoked potentials that are stimulated by period-jumps in a high-frequency modulated luminance have been detected and studied experimentally in monkeys. The visual responses are shown quantitatively by a Principal Components analysis to depend remarkably simply, in shape and in amplitude, on the period-jump stimulus. The response shape is nearly invariant, except that the early part of the response shows a distinctive (though slight) dependence on the sign of the period-jump. The response amplitude is approximately proportional to the magnitude of the period-jump of a given polarity. These features of the evoked potentials demonstrate an intimate association with a suprafusion transient phenomenon that has been observed psychophysically in man. The experimental behavior of the visual potentials also agrees well with theoretical predictions.

References

Jan 1, 1973·Electroencephalography and Clinical Neurophysiology·E R JohnJ Gehrmann
Sep 1, 1968·Electroencephalography and Clinical Neurophysiology·D Regan
Sep 1, 1970·Electroencephalography and Clinical Neurophysiology·F H Lopes da SilvaA M Tielen
Mar 1, 1973·Vision Research·J F Bird, G H Mowbray
Aug 8, 1969·Science·J F Bird, G H Mowbray
Dec 1, 1966·Vision Research·G Westheimer
Sep 1, 1961·Science·D M FORSYTH, C R BROWN
Mar 1, 1964·Journal of the Optical Society of America·T K SEN

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Citations

Oct 1, 1979·Electroencephalography and Clinical Neurophysiology·E W SnyderR E Dustman
Mar 1, 1980·Biophysical Journal·J F BirdG H Mowbray

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