Selective Stopping in Task Switching
The Role of Response Selection and Response Execution
Abstract
Recently, several studies stressed the role of response selection in cued task switching. The present study tried to investigate directly the hypothesis that no switch cost can be found when there was no response selection. In two experiments, we combined a cued task switching paradigm with the selective stopping paradigm. Results of the experiments demonstrated that a switch cost was found when participants selected a response, even without response execution. Alternatively, when the response was inhibited without the need of response selection, no switch cost was found. These results provide direct evidence for the distinct role of response selection in cued task switching and suggest that response execution is not a necessary factor to obtain a switch cost.
References
(1994). Shifting intentional set: Exploring the dynamic control of tasks. In: C. Umilta & M. Moscovitch (Eds.), Attention and performance XV (pp. 421-452). Cambridge, MA: MIT Press.
(2004). Inhibition and the right inferior frontal cortex. Trends in Cognitive Sciences, 8, 170– 177
(1999). Inhibitory motor control in stop paradigms: Review and reinterpretation of neural mechanisms. Acta Psychologica, 101, 179– 211
(2004). Cognitive control in the posterior frontolateral cortex: Evidence from common activations in task coordination, interference control, and working memory. Neuroimage, 23, 604– 606
(2004). Preparation for a forthcomming task is sufficient to produce subsequent shift costs. Psychonomic Bulletin and Review, 11, 302– 306
(1994). On the ability to inhibit thought and action: A user’s guide to the stop signal paradigm. In D. Dagenbach & T. H. Carr (Eds.), Inhibitory processes in attention, memory and language (pp. 189-239). San Diego: Academic Press.
(2000). Changing internal constraints on action: The role of backward inhibition. Journal of Experimental Psychology: General, 129, 4– 26
(2000). Modeling cognitive control in task-switching. Psychological Research, 63, 234– 249
(2003). Task switching. Trends in Cognitive Sciences, 7, 134– 140
(1995). Costs of a predictable switch between simple cognitive tasks. Journal of Experimental Psychology: General, 124, 207– 231
(2005). Retrieval of incidental stimulus-response associations as a source of negative priming. Journal of Experimental Psychology: Learning, Cognition and Memory, 31, 482– 495
(2003). The role of response selection for inhibition of task sets in task shifting. Journal of Experimental Psychology: Human Perception and Performance, 29, 92– 105
Tscope: A C library for programming cognitive experiments on the MS Windows platform. Behavior Research Methods,
in press(2005a). Inhibiting responses when switching: Does it matter?. Experimental Psychology, 52, 125– 130
(2005b). On the difference between response inhibition and negative priming: evidence from simple and selective stopping. Psychological Research, 69, 262– 271
(2000). Task switching and the measurement of “switch costs”. Psychological Research, 63, 212– 233
(2004). The role of response requirements in task switching: Dissolving the residue. Neuroreport, 15, 1079– 1087