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Time course of contrast adaptation to VDU-displayed text

URN to cite this document:
urn:nbn:de:bvb:355-epub-412778
Magnussen, Svein ; Dyrnes, Stein ; Greenlee, Mark W. ; Nordby, Knut ; Watten, Reidulf G.
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Date of publication of this fulltext: 16 Jan 2020 14:22


Abstract

VDU text-editing induces contrast adaptation at the predominant spatial frequencies (periodicity) of the text page. Visual contrast sensitivity was tested after 10 and 60 min reading of VDU-displayed text of positive and negative contrast polarity. Contrast sensitivity impairments in-the order of 0-4 to 0-7 log unit change in contrast thresholds were observed. This contrast threshold elevation ...

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