Abstract

Both brightness matching and sensitivity to sinusoidal flicker were measured for different contrasts using a 30′ test field surrounded by a 6° annulus. Test fields that produced 10 000-, 3000-, 1000-, 300-, 100-, and 30-td retinal illuminance were used. Matched brightness of the test field remained constant as surround luminance was increased from zero, then fell rapidly when the luminance of the surround was one tenth that of the test field. Flicker sensitivity followed a different function: It began to increase when the surround had one hundredth the luminance of the test field, reached a peak at one third, and then fell rapidly. The sensitivity enhancement was independent of flicker frequency. The results are attributed to spatial interactions in the visual system.

© 1970 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Effect of Contrast on CFF and Apparent Brightness*

Harris Ripps, Ira T. Kaplan, and Irwin M. Siegel
J. Opt. Soc. Am. 51(8) 870-873 (1961)

Variables Determining Flicker Sensitivity in Small Fields*

Ulker Tulunay Keesey
J. Opt. Soc. Am. 60(3) 390-398 (1970)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription