Spatial frequency and selective attention to spatial location.
The effect of spatial attention on the detectability of gratings of different spatial frequency was measured using a probe technique. Three experiments are reported in which the detectability of full-field probe gratings was measured while subjects analyzed stimuli presented in either the central or the peripheral visual field. Selective attention to peripheral stimuli produced a facilitation at low frequencies and a decrement at high frequencies. These effects disappeared under forced-choice presentation.
Shulman
G L
GL
Department of Psychology, Pennsylvania State University, University Park 16802.
Wilson
J
J
D001288:Attention; D005556:Form Perception; D006801:Humans; D010364:Pattern Recognition, Visual; D011930:Reaction Time; D013028:Space Perception; D014794:Visual Fields