Decremental and incremental visual thresholds
- 1 August 1966
- journal article
- research article
- Published by Wiley in The Journal of Physiology
- Vol. 185 (3) , 646-654
- https://doi.org/10.1113/jphysiol.1966.sp008007
Abstract
Extrafoveal decremental and incremental visual thresholds were measured with a circular test-object of 57[image] diameter, an exposure time of 0.1 sec and background luminance ranging from 2.5 to 7.3 log. quanta (equivalent to 507 nm) per sec. per square degree at the cornea. The decremental threshold is lower than the incremental threshold by factors up to 0.4 log. unit when the background luminance is low; and the 2 thresholds are virtually the same when the background luminance is high.This publication has 12 references indexed in Scilit:
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