Abstract

The luminance threshold for horizontal contours which move upward is raised by prior exposure of any of wide range of different directions of movement. The threshold for a stationary grating of horizontal bars is raised only by prior exposure of similarly oriented bars. It is also found that sensitivity to changes in orientation of a stationary grating is greater than sensitivity to changes in the direction in which a grating moves. It is proposed that the interactions between pre-exposed adapting stimuli and the stimuli for which thresholds are determined reflect the orientation and direction selectivities of the underlying mechanisms.

© 1968 Optical Society of America

Orientation-Specific Effects of Patterns of Adapting Light on Visual Acuity*

Alberta S. Gilinsky
J. Opt. Soc. Am. 58(1) 13-18 (1968)

Adaptation to Pattern Spatial Frequency: Effects on Visual Movement Sensitivity in Humans*†

Allan Pantle
J. Opt. Soc. Am. 60(8) 1120-1124 (1970)

Visual Resolution of Two-Bar Patterns and Square-Wave Gratings*

Jacob Nachmias
J. Opt. Soc. Am. 58(1) 9-13 (1968)

Opponent-movement mechanisms in human vision

C. F. Stromeyer, R. E. Kronauer, J. C. Madsen, and S. A. Klein
J. Opt. Soc. Am. A 1(8) 876-884 (1984)

Time Course of Visual Inhibition during Voluntary Saccades*†

Frances C. Volkmann, Amy M. L. Schick, and Lorrin A. Riggs
J. Opt. Soc. Am. 58(4) 562-569 (1968)