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Publications by Gordon LoganLogan, G. D. (2004). Working memory, task switching, and executive control in the task span procedure. Journal of Experimental Psychology: General, 133, 218-236.Four experiments explored the task span procedure: Subjects received lists of 1–10 task names to remember and then lists of 1–10 stimuli on which to perform the tasks. Task span is the number of tasks performed in order perfectly. Experiment 1 compared the task span with the traditional memory span in 6 practiced subjects and found little difference. Experiment 2 compared the task span and the memory span in 64 unpracticed subjects and also found little difference. Experiment 3 compared practice with consistent and varied lists to address retrieval from long-term memory. Experiment 4 manipulated the number of task switches and found that it had little effect on task spans. The results suggest there is no trade-off between storage and task switching, which supports some theories of executive control and challenges others. |
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