Bourke, Patrick, Duncan, John and Nimmo-Smith, Ian (1996) A general factor involved in dual-task performance decrement. Quarterly Journal of Experimental Psychology A, 49 (3). pp. 525-545. ISSN 0272-4987
Full content URL: http://dx.doi.org/10.1080/027249896392487
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QJEP_paper_1996.pdf - Whole Document Restricted to Repository staff only 247kB |
Item Type: | Article |
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Item Status: | Live Archive |
Abstract
Beyond specific conflicts between tasks that are obviously similar (e.g. two verbal tasks) and limits specific to speeded responses, is there a general limitation on what tasks can be done simultaneously? In two experiments, we examined dual-task combinations designed to avoid known sources of specific interference. Under these circumstances, a general factor model predicts consistency in the pattern of results. Tasks should be ordered in demands on the general factor as measured by interference with concurrent tasks; this order should be the same for any concurrent task used to measure it. This prediction was confirmed in both experiments, each involving 12 dual task combinations of four tasks. In Experiment 1, the tasks were tone discrimination, random letter generation, a manual- tactile manipulation task,and recognition memory for photographs. In Experiment 2, the ® rst of these was replaced by an easier tone-monitoring task, and the last by a visual prototype learning task.
Additional Information: | Beyond specific conflicts between tasks that are obviously similar (e.g. two verbal tasks) and limits specific to speeded responses, is there a general limitation on what tasks can be done simultaneously? In two experiments, we examined dual-task combinations designed to avoid known sources of specific interference. Under these circumstances, a general factor model predicts consistency in the pattern of results. Tasks should be ordered in demands on the general factor as measured by interference with concurrent tasks; this order should be the same for any concurrent task used to measure it. This prediction was confirmed in both experiments, each involving 12 dual task combinations of four tasks. In Experiment 1, the tasks were tone discrimination, random letter generation, a manual- tactile manipulation task,and recognition memory for photographs. In Experiment 2, the ® rst of these was replaced by an easier tone-monitoring task, and the last by a visual prototype learning task. |
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Keywords: | Dual task performance |
Subjects: | C Biological Sciences > C800 Psychology C Biological Sciences > C850 Cognitive Psychology |
Divisions: | College of Social Science > School of Psychology |
Related URLs: | |
ID Code: | 3397 |
Deposited On: | 29 Sep 2010 14:13 |
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