Abstract
Although response repetition (RR) effects vary considerably between conditions and studies, little is known about the causes. Recently, RR costs on task-switch trials have been found to be larger for incongruent stimuli that activate both alternative responses than for neutral ones. Here, we investigated if this modulation can be explained by an amplification of response conflict account (ARC). It assumes that a response-shift bias that is responsible for the basic RR costs amplifies the response conflict induced by incongruent stimuli specifically on trials where the response repeats. Consequently, RR costs are increased for incongruent stimuli. Because supporting evidence for this account was restricted to task-shift trials, we tested if the ARC account holds also more generally, that is, on task-repetition trials. To this end, we applied a rather common alternating-runs paradigm and presented neutral and incongruent stimuli. Results show that the congruency effect was larger on RR trials than on RS trials. Because this relation was independent of task transition, it is consistent with the idea that, in order to promote behavioral flexibility in task-switching contexts, a general response-shift bias is induced by inhibiting the previous response.
References
(2011). Testing probability matching and episodic retrieval accounts of response repetition effects in task switching. Journal of Experimental Psychology: Learning, Memory and Cognition, 37, 935–951. doi: 10.1037/a0022931
(2008). The role of response repetition in task switching. Journal of Experimental Psychology: Human Perception and Performance, 34, 1198–1211.
(2008). Response inhibition under task switching: Its strength depends on the amount of task-irrelevant response activation. Psychological Research, 72, 515–527.
(2012a). Excessive response-repetition costs under task switching: How response inhibition amplifies response conflict. Journal of Experimental Psychology: Learning, Memory and Cognition. Advance online publication. doi: 10.1037/a0028477
(2012b). Response-repetition costs in task switching: How they are modulated by previous-trial response-category activation. Acta Psychologica, 139, 97–103. doi: 10.1016/j.actpsy.2011.10.006
(2012c). Strategic modulation of response inhibition in task switching. Manuscript in preparation.
(2001). The Theory of Event Coding (TEC): A framework for perception and action planning. Behavioral and Brain Sciences, 24, 849–878.
(2006). Response execution, selection, or activation: What is sufficient for response-related repetition effects under task shifting? Psychological Research, 70, 245–261.
(2009). A repetition-suppression account of between-trial effects in a modified Stroop paradigm. Acta Psychologica, 131, 72–84. doi: 10.1016/j.actpsy.2009.03.002
(2010). Control and interference in task switching – a review. Psychological Bulletin, 136, 849–874.
(1999). Response repetition benefits and costs. Acta Psychologica, 103, 295–310.
(1999). Hierarchical switching in a multi-dimensional task space. Psychological Research, 62, 300–312.
(2011). Response-repetition effects in task switching: Dissociating effects of anatomical and spatial response discriminability. Acta Psychologica, 136, 399–404. doi: 10.1016/j.actpsy.2011.01.006
(2012). Unmixing the mixing cost: Contributions from dimensional relevance and stimulus-response suppression. Journal of Experimental Psychology: Human, Perception and Performance, 38, 478–488. doi: 10.1037/a0025979
(2003). Conflict adaption effects in the absence of executive control. Nature Neuroscience, 6, 450–452.
(2000a). Modeling cognitive control in task-switching. Psychological Research, 63, 234–249.
(2000b). Reconfiguration of stimulus task-sets and response task-sets during task-switching. In , Control of cognitive processes: Attention and performance XVIII (pp. 377–399). Cambridge, MA: MIT Press.
(1991). Procedural learning: 2. Intertrial repetition effects in speeded-choice tasks. Journal of Experimental Psychology: Learning, Memory and Cognition, 17, 33–48.
(1995). Costs of a predictable switch between simple cognitive tasks. Journal of Experimental Psychology: General, 124, 207–231.
(2004). The costs of changing the representation of action: Response repetition and response-response compatibility in dual tasks. Journal of Experimental Psychology: Human Perception and Performance, 30, 566–582.
(2007). Automatic activation of task-related representations in task shifting. Memory & Cognition, 35, 138–155.
(1994). Effects of truncation on reaction time analysis. Journal of Experimental Psychology: General, 123, 34–80.
