Elsevier

Vision Research

Volume 25, Issue 10, 1985, Pages 1409-1411
Vision Research

Marathon adaptation to spatial contrast: Saturation in sight

https://doi.org/10.1016/0042-6989(85)90218-4Get rights and content

Abstract

The contrast thresholds for detecting a 6.0 c/deg vertical sinusoidal test grating were tracked during and after 3 hr inspection of a high-contrast adapting grating of the same spatial frequency and orientation. Log contrast threshold increased linearly with log adaptation time, attaining a final stable value after approximately 30 and 60 min of adaptation for the two subjects tested. The recovery function was likewise linear on double logarithmic axes. The results further suggest that adaptation beyond the saturation point had no influence on the subsequent rate of recovery.

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Present address: Institute of Psychology, University of Oslo, Box 1094, Blindern, N-0317 Oslo 3, Norway.

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