title: Stopping while going! Response inhibition does not suffer dual-task interference.
abstract: Although dual-task interference is ubiquitous in a variety of task domains, stop-signal studies suggest that response inhibition is not subject to such interference. Nevertheless, no study has directly examined stop-signal performance in a dual-task setting. In two experiments, stop-signal performance was examined in a psychological refractory period task, in which subjects inhibited one response while still executing the other. The results showed little evidence for the refractory effect in stop-signal reaction time, and stop-signal reaction time was similar in dual-task and single-task conditions, despite the fact that overt reaction times were significantly affected by dual-task interference. Therefore, the present study supports the claim that response inhibition does not suffer dual-task interference.
authors.affiliation: Department of Psychology, Vanderbilt University, Nashville, TN 37203, USA. motonori.yamaguchi@vanderbilt.edu
authors.forename: Motonori
authors.initials: M
authors.lastname: Yamaguchi
authors.forename: Gordon D
authors.initials: GD
authors.lastname: Logan
authors.forename: Patrick G
authors.initials: PG
authors.lastname: Bissett
mesh_terms: D000328:Adult; D003118:Color Perception / Q000502:physiology; D056344:Executive Function / Q000502:physiology*; D005556:Form Perception / Q000502:physiology; D006801:Humans; D007266:Inhibition, Psychological; D009483:Neuropsychological Tests; D011930:Reaction Time / Q000502:physiology*; D012033:Refractory Period, Psychological / Q000502:physiology*; D055815:Young Adult