Spatial adaptation, in the form of a frequency-specific reduction in contrast sensitivity, can occur when the visual system is exposed to certain stimuli. We employed vertical sinusoidal test gratings to investigate adaptation to the horizontal structure of text presented on a standard video display terminal. The parameters of the contrast sensitivity test were selected, on the basis of waveform analysis of spatial luminance scans of the text stimulus. We found. that subjects exhibited a small, but significant, frequency-specific adaptation consistent with the spatial frequency spectrum of the stimulus. Theoretical and practical significance of this finding are discussed.
BT - International Society for Optics and Photonics (SPIE) C1 -Lighting Systems Group
C2 - LBL-28376 CN - LBL-2837 DA - 08/1989 DO - 10.1117/12.952699 LA - eng M1 - Jul-92 N2 -Spatial adaptation, in the form of a frequency-specific reduction in contrast sensitivity, can occur when the visual system is exposed to certain stimuli. We employed vertical sinusoidal test gratings to investigate adaptation to the horizontal structure of text presented on a standard video display terminal. The parameters of the contrast sensitivity test were selected, on the basis of waveform analysis of spatial luminance scans of the text stimulus. We found. that subjects exhibited a small, but significant, frequency-specific adaptation consistent with the spatial frequency spectrum of the stimulus. Theoretical and practical significance of this finding are discussed.
PY - 1989 SP - 27 EP - 34 T2 - International Society for Optics and Photonics (SPIE) T3 - Human Vision, Visual Processing, and Digital Display TI - Spatial Adaptation on Video Display Terminals VL - 1077 SN - 9780819401120 ER -