title: Dissociating stimulus-set and response-set in the context of task-set switching.
abstract: The primary aim of the present research was to determine how stimulus-set and response-set components of task-set contribute to switch costs and conflict processing. Three experiments are described wherein participants completed an explicitly cued task-switching procedure. Experiment 1 established that task switches requiring a reconfiguration of both stimulus- and response-set incurred larger residual switch costs than task switches requiring the reconfiguration of stimulus-set alone. Between-task interference was also drastically reduced for response-set conflict compared with stimulus-set conflict. A second experiment replicated these findings and demonstrated that stimulus- and response-conflict have dissociable effects on the "decision time" and "motor time" components of total response time. Finally, a third experiment replicated Experiment 2 and demonstrated that the stimulus- and response- components of task switching and conflict processing elicit dissociable neural activity as evidence by event-related brain potentials.
authors.affiliation: Department of Psychology, College of William & Mary, 540 Landrum Dr., Williamsburg, VA 23185, USA. pdkieffaber@wm.edu
authors.forename: Paul D
authors.initials: PD
authors.lastname: Kieffaber
authors.forename: John K
authors.initials: JK
authors.lastname: Kruschke
authors.forename: Raymond Y
authors.initials: RY
authors.lastname: Cho
authors.forename: Philip M
authors.initials: PM
authors.lastname: Walker
authors.forename: William P
authors.initials: WP
authors.lastname: Hetrick
mesh_terms: D000293:Adolescent; D000328:Adult; D001288:Attention / Q000502:physiology*; D001921:Brain / Q000502:physiology*; D003220:Conflict, Psychological; D004569:Electroencephalography; D005071:Evoked Potentials / Q000502:physiology*; D056344:Executive Function / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology*; D055815:Young Adult