Abstract
Abstract. A number of recent studies have shown that shifting among four tasks that result from a factorial combination of two types of judgment with two judgment-to-response mappings results in a characteristic pattern of shift costs that indicates a hierarchical representation of the two task features judgment and mapping (e.g., Kleinsorge & Heuer, 1999). In the present study, two types of judgment were combined with two stimulus dimensions. With this task combination, the same basic shift-cost pattern was observed. This suggests that a combination of two types of judgment with two stimulus dimensions also results in a hierarchically structured task representation, indicating that such a task representation is readily adopted by participants when the combination of task features is suitable for a hierarchical organization.
References
(1994). Shifting attentional set: Exploring the dynamic control of tasks. In C. Umiltà & M. Moscovitch (Eds.), Attention and performance XV: Conscious and nonconscious information processing. Cambridge, MA: MIT Press.
(1992). The ecology of automaticity: toward establishing the conditions needed to produce automatic processing effects. American Journal of Psychology, 105, 181– 199
(2001). On attentional control as a source of residual shift costs: Evidence from two-component task shifts. Journal of Experimental Psychology: Learning, Memory, and Cognition, 27, 640– 653
(2003). Globale Determinanten lokaler Kosten bei Aufgabenwechseln [Global determinants of local shift costs]. Psychologische Rundschau, 54, 217– 224
(1999). Hierarchical switching in a multi-dimensional task space. Psychological Research, 62, 300– 312
(2001a). Task-set reconfiguration with binary and three-valued task dimensions. Psychological Research, 65, 192– 201
(2001b). Hierarchical switching in a multi-dimensional task space is not induced by specific task cues. Zeitschrift für Psychologie, 209, 105– 117
(2002). Processes of task-set reconfiguration: Switching operations and implementation operations. Acta Psychologica, 111, 1– 28
(in press) Assembling a task space: Global determination of local shift costs. Psychological Research,
(2000). Modeling cognitive control in task-switching. Psychological Research, 63, 234– 249
(2003). Task switching. Trends in Cognitive Sciences, 7, 134– 140
