Journal Article10.1037/0033-295X.108.2.393
Executive control of visual attention in dual-task situations.
Gordon D. Logan,Robert D. Gordon +1 more
789
TL;DR: A theory of executive control is presented that proposes that executive processes control subordinate processes by manipulating their parameters, reconfiguring them to respond in accord with the current task set.
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Abstract: A theory of executive control is presented that proposes that executive processes control subordinate processes by manipulating their parameters, reconfiguring them to respond in accord with the current task set. It adopts C. Bundesen's (1990) theory of visual attention (TVA) and R. M. Nosofsky and T. J. Palmeri's (1997) exemplar-based random walk (EBRW) as the theory of subordinate processes. It assumes that a task set is a set of TVA and EBRW parameters sufficient to perform a task and that set switching involves changing those parameters. The theory solves 2 computational problems that emerge in dual-task situations: the binding problem and the serial order problem. It can perform dual tasks in series or in parallel but prefers the serial strategy because it is faster and it solves the binding problem naturally. The theory accounts for concurrence cost, set-switching cost, crosstalk between tasks, and the modulation of crosstalk by task set.
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Citations
On the mechanisms improving dual-task performance with pratice
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- 19 Jan 2010
TL;DR: Four studies in the present work specify the result of the learning mechanisms and show that dual-task performance in the visual but not in the auditory task is stable after practice has finished and shows that component task processing in dual- task situations is mainly shortened through a shortening at the response selection stage.
Exploringtemporal dissipationof attentionsettingsinauditory task switching
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- 01 Jan 2014
TL;DR: A cued auditory task-switching variant of dichotic listening varied the response-cue interval (RCI) to examine temporal dissipation effects and suggested that auditory attention settings do not dissipate quickly over time.
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