Title

Spectral Tuning of Opponent Channels is Spatially Dependent

Document Type

Article

Publication Date

1-1988

Digital Object Identifier (DOI)

https://doi.org/10.1002/col.5080130208

Abstract

Psychophysical detection and appearance data suggest that the spectral tuning of opponent pathways varies with test size. The present study examines the effect on spectral sensitivity of the relative size of test and surround fields. Increment thresholds and flashed‐field sensitivities were obtained for 580 nm and 641 nm targets. Three spatial configurations were used. The pattern of sensitivity loss is shown to depend on the spatial relation between test and field; the effect of the spatial relation in turn depends on test wavelength. The findings are explained by the activity of a changing network of spatially and spectrally opponent cells.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

Color Research and Application, v. 13, issue 2, p. 106-112.

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