Sustained vs. transient cognitive control: Evidence of a behavioral dissociation |
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| Authors: | María Jesús Funes Juan Lupiáñez Glyn Humphreys |
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| Institution: | 1. Department of Brain and Cognitive Sciences, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel;2. Department of Psychology, Ben-Gurion University of the Negev, Arugot 79800, Israel;3. Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel;4. Department of Psychology, Achva Academic College, Arugot 79800, Israel;1. Functional Neuroimaging Laboratory, School of Psychology, University of Newcastle, Australia;2. Priority Research Centre for Translational Neuroscience and Mental Health, University of Newcastle, Australia;3. Hunter Medical Research Institute, University of Newcastle, Australia;4. School of Electrical Engineering and Computer Science, University of Newcastle, Australia;1. Department of Psychology, University of Michigan, USA;2. Center for Cognitive Neuroscience, Duke University, USA;1. Department of Experimental Clinical and Health Psychology, Ghent University, Belgium;2. Department of Psychology, University of MI, USA |
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| Abstract: | This study assessed whether two well known effects associated with cognitive control, conflict adaptation (the Gratton effect) and conflict context (proportion congruent effects), reflect a single common or separate control systems. To test this we examined if these two effects generalized from one kind of conflict to another by using a combined-conflict paradigm (involving the Simon and Spatial Stroop tasks) and manipulating the proportion of congruent to incongruent trials for one conflict (Simon) but not the other (Spatial Stroop). We found that conflict adaptation effects did not generalize, but the effect of conflict context did. This contrasting pattern of results strongly suggests the existence of two separate attentional control systems, one transient and responsible of online regulation of performance (conflict adaptation), the other sustained and responsible for conflict context effects. |
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