title: The role of spatial frequency in cued shifts of attention between global and local forms.
abstract: It has been suggested that shifts of attention between global and local forms might be based on selection between, or differential activation of, low- and high-spatial-frequency channels. In the present study, pretrial cues indicated which level (global or local) was likely to contain the target on each trial. There was a response time (RT) advantage for validly cued trials and an RT cost for invalidly cued trials relative to a neutral cue baseline. This cuing effect was the same for broadband stimuli and for contrast-balanced stimuli in which low spatial frequencies were eliminated. Thus, cued attentional shifts between global and local forms occur even when selection cannot be based on spatial frequency.
authors.affiliation: Department of Psychology, California State University, Hayward 94542, USA. mlamb@csuhayward.edu
authors.forename: M R
authors.initials: MR
authors.lastname: Lamb
authors.forename: E W
authors.initials: EW
authors.lastname: Yund
mesh_terms: D000293:Adolescent; D000328:Adult; D001288:Attention; D003463:Cues; D005260:Female; D005403:Fixation, Ocular / Q000502:physiology; D006801:Humans; D008297:Male; D011930:Reaction Time; D013028:Space Perception; D014792:Visual Acuity / Q000502:physiology