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Vision Research 40 (2000) 25512556 Rapid communication

Summary: Vision Research 40 (2000) 25512556
Rapid communication
Monocular lustre from flicker
Stuart M. Anstis *
Department of Psychology, Uni6ersity of California, San Diego, 9500 Gilman Dri6e, La Jolla, CA 92093-0109, USA
Received 15 November 1999; received in revised form 5 May 2000
A spot that flickers at 16 Hz between two luminance levels (on a grey surround) has an appearance of metallic lustre, which
we call `monocular lustre'. Binocular and monocular lustre were measured in comparable conditions by a rating procedure, and
both were reported only when the light and dark values of the flickering (or binocularly fused) spot straddled the surround
luminance, so that the spot was alternately brighter and darker than the surround. We attribute lustre to competition between ON
and OFF visual pathways. 2000 Published by Elsevier Science Ltd.
Keywords: Flicker; Brightness perception; Binocular fusion; Binocular rivalry; Lustre
1. Introduction
How does the visual system combine two lumi-
nances? We have previously reported (Anstis & Ho,
1998) that the changes in apparent brightness that are
induced into a spot by a surround can be greatly
enhanced either by flickering the test spot between two


Source: Anstis, Stuart - Department of Psychology, University of California at San Diego


Collections: Biology and Medicine