Simultaneous lightness contrast is stronger when the dark and light backgrounds of the classic display (where one of the targets is an increment and the other is a decrement) are replaced by articulated fields of equivalent average luminances. Although routinely attributed to articulation per se, this effect may simply result from the increase in highest luminance in the light articulated, vs plain, background; by locally darkening the decremental target, such an increase would amplify the difference between the targets. We disentangled the effects of highest luminance and articulation by measuring, separately, the magnitude of lightness contrast on dark and light plain and articulated backgrounds. We found that highest luminance and articulation contribute separately to the final illusion.

Bressan, P., ACTIS GROSSO, R. (2006). Simultaneous lightness contrast on plain and articulated surrounds. PERCEPTION, 35(4), 445-452 [10.1068/p5247].

Simultaneous lightness contrast on plain and articulated surrounds

ACTIS GROSSO, ROSSANA
2006

Abstract

Simultaneous lightness contrast is stronger when the dark and light backgrounds of the classic display (where one of the targets is an increment and the other is a decrement) are replaced by articulated fields of equivalent average luminances. Although routinely attributed to articulation per se, this effect may simply result from the increase in highest luminance in the light articulated, vs plain, background; by locally darkening the decremental target, such an increase would amplify the difference between the targets. We disentangled the effects of highest luminance and articulation by measuring, separately, the magnitude of lightness contrast on dark and light plain and articulated backgrounds. We found that highest luminance and articulation contribute separately to the final illusion.
Articolo in rivista - Articolo scientifico
Simultaneous lightness contrast; anchoring theories for lightness perception
English
2006
35
4
445
452
none
Bressan, P., ACTIS GROSSO, R. (2006). Simultaneous lightness contrast on plain and articulated surrounds. PERCEPTION, 35(4), 445-452 [10.1068/p5247].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/3652
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