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Visual Responses to Time-Dependent Stimuli* I Amplitude Sensitivity Measurements†

Kelly, D. H.·1961·Journal of the Optical Society of America

Abstract

With sinusoidal modulation of the radiance of the stimulus as a function of time, amplitude thresholds are measured instead of the repetition-rate thresholds usually obtained in flicker-fusion experiments. Controlling the modulation amplitude independently of the time-average radiance provides an additional degree of freedom, so that the observer’s adaptation level can be held constant while his amplitude sensitivity is measured as a function of the modulation frequency. With an “edgeless” flickering field, these amplitude sensitivity curves show a broad peak of maximum visual response, in the region from 10 to 20 cps at high photopic levels. Such classic relationships as the Ferry-Porter, Talbot-Plateau, and Weber-Fechner laws are derivable from the present results, as descriptions of the behavior of certain parts of the amplitude sensitivity curves as functions of adaptation level.

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Metadata

Authors
Kelly, D. H.
Venue
Journal of the Optical Society of America
Published
1961-04-01
Volume
51
Issue
4
Pages
422
ISSN
0030-3941 (ISSN-L)
OpenAlex
W2009581014
Cited by
575
References
0
FWCI
9.60
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Visual Responses to Time-Dependent Stimuli* I Amplitude Sensitivity Measurements†. https://app.cochat.ai/papers/10.1364/josa.51.000422
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Kelly, D. H. (1961). Visual Responses to Time-Dependent Stimuli* I Amplitude Sensitivity Measurements†. Journal of the Optical Society of America. https://doi.org/10.1364/josa.51.000422

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