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Spatial adaptation to text on a video display terminal
Author(s) -
Greenhouse Daniel S.,
Bailey Ian L.,
Howarth Peter A.,
Berman Samuel M.
Publication year - 1992
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1992.tb00402.x
Subject(s) - luminance , adaptation (eye) , spatial frequency , waveform , computer science , stimulus (psychology) , contrast (vision) , computer vision , communication , artificial intelligence , optics , physics , telecommunications , psychology , cognitive psychology , radar
We employed vertical sinusoidal test gratings to search for spatial adaptation to lower‐case text presented on a standard video display terminal. The parameters of the contrast sensitivity test were selected on the basis of waveform analysis of horizontal spatial luminance profiles of the text. We found that subjects exhibited a small (4–5dB), but significant, frequency‐specific spatial adaptation consistent with the frequency spectrum of the stimulus. The theoretical and practical significance of this finding is discussed.