title: The presence of a nonresponding effector increases inhibition of return.
abstract: Inhibition of return (IOR) refers to the performance disadvantage for targets presented at an exogenously cued location, relative to an uncued location, at relatively long cue-target onset asynchronies. In this experiment, we investigated the influence on IOR of a nonresponding effector (i.e., the index finger of the nonresponding hand) placed on a response key in a simple-RT task. With peripheral cues and targets, IOR and spatial stimulus-response compatibility effects were larger when the nonresponding hand was placed on a response key. IOR--the slowed responding to go signals at the cued location--was accompanied by a lower false alarm rate when no-go signals were presented there. These findings provide direct evidence for a motoric component to IOR wherein some portion of the inhibition is observed as a criterion shift against responding to the cued location.
authors.affiliation: Department of Psychology, Dalhousie University, Halifax, Nova Scotia, Canada. ji@or.psychology.dal.ca
authors.forename: J
authors.initials: J
authors.lastname: Ivanoff
authors.forename: R M
authors.initials: RM
authors.lastname: Klein
mesh_terms: D000328:Adult; D001288:Attention; D004193:Discrimination Learning; D005260:Female; D007839:Functional Laterality; D006801:Humans; D007266:Inhibition, Psychological; D008297:Male; D009949:Orientation; D010364:Pattern Recognition, Visual; D011597:Psychomotor Performance; D011601:Psychophysics; D011930:Reaction Time