Abstract

Valid cues have an effect of reducing detection time of targets, which is called cueing effect. This study manipulated validity of central and peripheral cues between 25%, 40%, 55%, 70%, 85%, 100% and measured target detection time. In both of cue conditions overall response time (RT) decreased non-linearly when cue validity increased, and tended to be longer than expected linearly at corresponding validity level. As cue validity increased valid trials also showed similar nonlinear decreasing pattern of RTs, but cueing effect increased linearly. Further analysis indicates that 6 levels of validity could be grouped into three sections: 25% and 40% section, 55% to 85% section, and 100% level. In summary, RTs of valid trials did not match levels of cue validity sensitively, and there might be more strategic factors involved in utilizing cue validity information.