title: Influence of practice on response-selection and response-implementation processes involved in the response-interference effect.
abstract: In a choice reaction-time task, the response-interference effect is an increase in reaction times when the two possible responses are from the same hand compared to when the two possible responses are from different hands [Psychonomic Science 2 (1965) 55-56; Human Motor Control, Academic Press, San Diego, CA, 1991]. Although the influence of practice on other reaction-time effects (i.e., the complexity effect and precuing) has been examined, research evaluating the influence of practice on the response-interference effect is limited. Therefore, two experiments were conducted to determine the influence of practice on the response-interference effect. In Experiment 1, a bilateral transfer task was used to assess the influence of practice on the response-selection processes associated with the response-interference effect. The practice results indicated decreased reaction times, but did not influence the response-interference effect. In Experiment 2, a priming task was used to assess the influence of practice on response-implementation processes associated with the response-interference effect. The reaction time results indicated a change in the response-interference effect. The results of these two experiments suggest that with only two fingers on response keys, practice alters the mechanical constraints affecting the response-implementation processes and thereby decreases the response-interference effect.
authors.affiliation: School of Health, Physical Education and Leisure Services, University of Northern Iowa, Cedar Falls 50614-0241, USA. melanie.hart@uni.edu
authors.forename: Melanie A
authors.initials: MA
authors.lastname: Hart
authors.forename: T Gilmour
authors.initials: TG
authors.lastname: Reeve
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D002755:Choice Behavior; D003071:Cognition; D003463:Cues; D005260:Female; D006801:Humans; D008297:Male; D011214:Practice, Psychological; D011597:Psychomotor Performance; D011930:Reaction Time